Known Exploited Vulnerability
7.8
HIGH
CVE-2021-3156
Sudo Heap-Based Buffer Overflow Vulnerability - [Actively Exploited]
Description

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

INFO

Published Date :

Jan. 26, 2021, 9:15 p.m.

Last Modified :

July 9, 2024, 6:27 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Sudo contains an off-by-one error that can result in a heap-based buffer overflow, which allows for privilege escalation.

Required Action :

Apply updates per vendor instructions.

Public PoC/Exploit Available at Github

CVE-2021-3156 has a 265 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-3156 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Oracle tekelec_platform_distribution
2 Oracle communications_performance_intelligence_center
3 Oracle micros_compact_workstation_3_firmware
4 Oracle micros_es400_firmware
5 Oracle micros_kitchen_display_system_firmware
6 Oracle micros_workstation_5a_firmware
7 Oracle micros_workstation_6_firmware
8 Oracle micros_compact_workstation_3
9 Oracle micros_es400
10 Oracle micros_kitchen_display_system
11 Oracle micros_workstation_5a
12 Oracle micros_workstation_6
1 Netapp active_iq_unified_manager
2 Netapp ontap_select_deploy_administration_utility
3 Netapp cloud_backup
4 Netapp hci_management_node
5 Netapp solidfire
6 Netapp oncommand_unified_manager_core_package
7 Netapp ontap_tools
1 Synology diskstation_manager
2 Synology skynas_firmware
3 Synology vs960hd_firmware
4 Synology diskstation_manager_unified_controller
5 Synology skynas
6 Synology vs960hd
1 Beyondtrust privilege_management_for_mac
2 Beyondtrust privilege_management_for_unix\/linux
1 Fedoraproject fedora
1 Debian debian_linux
1 Mcafee web_gateway
1 Sudo_project sudo
: Total Affected Vendor : 8 | Products : 31
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-3156.

URL Resource
http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html Exploit Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2021/Feb/42 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jan/79 Exploit Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Feb/3 Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/26/3 Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/27/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/27/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/15/1 Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/14/2 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/01/30/6 Exploit Mailing List
http://www.openwall.com/lists/oss-security/2024/01/30/8 Mailing List
https://kc.mcafee.com/corporate/index?page=content&id=SB10348 Broken Link Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ Mailing List Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ Mailing List Release Notes
https://security.gentoo.org/glsa/202101-33 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210128-0001/ Third Party Advisory
https://security.netapp.com/advisory/ntap-20210128-0002/ Third Party Advisory
https://support.apple.com/kb/HT212177 Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM Third Party Advisory
https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability Third Party Advisory
https://www.debian.org/security/2021/dsa-4839 Third Party Advisory
https://www.kb.cert.org/vuls/id/794544 Third Party Advisory US Government Resource
https://www.openwall.com/lists/oss-security/2021/01/26/3 Exploit Mailing List Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html Patch Third Party Advisory
https://www.sudo.ws/stable.html#1.9.5p2 Release Notes
https://www.synology.com/security/advisory/Synology_SA_21_02 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
acidburn2049/CVE-2021-3156

None

Updated: 3 days, 16 hours ago
0 stars 0 fork 0 watcher
Born at : Sept. 13, 2024, 4:20 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Rai2en/OSCP-Notes

A collection of study notes and resources for the Offensive Security Certified Professional (OSCP) certification exam. Includes summaries, key concepts, and practical tips.

Updated: 3 weeks, 3 days ago
0 stars 0 fork 0 watcher
Born at : Aug. 23, 2024, 5:46 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
JeanR12/Persistence-Script-Script-Exploit-

Este script educativo combina técnicas de ocultación de procesos, persistencia, escalación de privilegios, y conexión remota segura para enseñar y concienciar sobre ciberseguridad en entornos controlados.

Python

Updated: 1 month ago
0 stars 0 fork 0 watcher
Born at : Aug. 13, 2024, 5:20 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
Technetium1/stars

My stars. View raw for full list.

Updated: 1 week, 2 days ago
0 stars 0 fork 0 watcher
Born at : Aug. 8, 2024, 6:44 p.m. This repo has been linked 8 different CVEs too.
Profile Photo
Daniel-Ayz/OSCP

My OSCP cheat sheet

oscp pentesting redteaming

Updated: 1 month, 1 week ago
1 stars 1 fork 1 watcher
Born at : Aug. 4, 2024, 8:22 p.m. This repo has been linked 3 different CVEs too.
Profile Photo
a-roshbaik/Linux-Privilege-Escalation-Exploits

None

C Shell Python Assembly Ruby Makefile Meson

Updated: 1 month, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : July 20, 2024, 8:34 p.m. This repo has been linked 91 different CVEs too.
Profile Photo
Typical0day/CVE-2021-3156

None

Makefile Shell C

Updated: 2 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : July 4, 2024, 2:29 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
NormalPerson001/sudo-1.8.31

None

Makefile C

Updated: 2 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : June 20, 2024, 8:39 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
DrewSC13/Linpeas

linpeas.sh

Shell

Updated: 2 months, 3 weeks ago
2 stars 0 fork 0 watcher
Born at : June 7, 2024, 4:52 p.m. This repo has been linked 8 different CVEs too.
Profile Photo
Neiver97/FinalProject-SO-20241

This is a Final Proyect SO

Makefile C Python Rich Text Format

Updated: 3 months ago
0 stars 0 fork 0 watcher
Born at : June 6, 2024, 12:01 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
0xMarcio/cve

Latest CVEs with their Proof of Concept exploits.

Python

Updated: 1 week, 1 day ago
5 stars 1 fork 1 watcher
Born at : May 24, 2024, 11:02 a.m. This repo has been linked 78 different CVEs too.
Profile Photo
lypd0/CVE-2021-3156-checker

Checker for CVE-2021-3156 with static version check

checker cve cve-2021-3156 escalation privesc privilege python

Python

Updated: 2 months, 3 weeks ago
1 stars 0 fork 0 watcher
Born at : May 14, 2024, 4:35 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
scaryPonens/cve_bot

Retriever-Augmented Generation (RAG) agent designed to investigate Common Vulnerabilities and Exposures (CVE) notices. The tool is specifically tailored to assist users in determining whether their current application or system setups are susceptible to identified exploits.

Python

Updated: 4 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : May 3, 2024, midnight This repo has been linked 1 different CVEs too.
Profile Photo
34rthq04k3/CVE-2021-3156

kernal exploit 3156

C

Updated: 4 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : May 2, 2024, 10:19 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
realbugdigger/Vuln-Analysis

Analysis of 0day and N-day security vulnerabilities, along with PoCs

C

Updated: 3 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : April 28, 2024, 11:35 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-3156 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3156 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Jul. 09, 2024

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html Third Party Advisory, VDB Entry http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html No Types Assigned http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://seclists.org/fulldisclosure/2024/Feb/3 No Types Assigned http://seclists.org/fulldisclosure/2024/Feb/3 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2024/01/30/6 No Types Assigned http://www.openwall.com/lists/oss-security/2024/01/30/6 Exploit, Mailing List
    Changed Reference Type http://www.openwall.com/lists/oss-security/2024/01/30/8 No Types Assigned http://www.openwall.com/lists/oss-security/2024/01/30/8 Mailing List
    Changed Reference Type https://kc.mcafee.com/corporate/index?page=content&id=SB10348 Third Party Advisory https://kc.mcafee.com/corporate/index?page=content&id=SB10348 Broken Link, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ Mailing List, Release Notes
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ Mailing List, Release Notes
    Changed Reference Type https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability Patch, Third Party Advisory https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability Third Party Advisory
    Changed Reference Type https://www.sudo.ws/stable.html#1.9.5p2 Release Notes, Vendor Advisory https://www.sudo.ws/stable.html#1.9.5p2 Release Notes
    Changed CPE Configuration OR *cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:ontap_tools:9:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:* OR *cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:* OR *cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR cpe:2.3:h:oracle:micros_compact_workstation_3:-:*:*:*:*:*:*:* OR *cpe:2.3:o:oracle:micros_compact_workstation_3_firmware:310:*:*:*:*:*:*:* AND OR *cpe:2.3:o:oracle:micros_compact_workstation_3_firmware:310:*:*:*:*:*:*:* OR cpe:2.3:h:oracle:micros_compact_workstation_3:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR cpe:2.3:h:oracle:micros_es400:-:*:*:*:*:*:*:* OR *cpe:2.3:o:oracle:micros_es400_firmware:*:*:*:*:*:*:*:* versions from (including) 400 up to (including) 410 AND OR *cpe:2.3:o:oracle:micros_es400_firmware:*:*:*:*:*:*:*:* versions from (including) 400 up to (including) 410 OR cpe:2.3:h:oracle:micros_es400:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR cpe:2.3:h:oracle:micros_kitchen_display_system:-:*:*:*:*:*:*:* OR *cpe:2.3:o:oracle:micros_kitchen_display_system_firmware:210:*:*:*:*:*:*:* AND OR *cpe:2.3:o:oracle:micros_kitchen_display_system_firmware:210:*:*:*:*:*:*:* OR cpe:2.3:h:oracle:micros_kitchen_display_system:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR cpe:2.3:h:oracle:micros_workstation_5a:-:*:*:*:*:*:*:* OR *cpe:2.3:o:oracle:micros_workstation_5a_firmware:5a:*:*:*:*:*:*:* AND OR *cpe:2.3:o:oracle:micros_workstation_5a_firmware:5a:*:*:*:*:*:*:* OR cpe:2.3:h:oracle:micros_workstation_5a:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 04, 2024

    Action Type Old Value New Value
    Added Reference MITRE http://seclists.org/fulldisclosure/2024/Feb/3 [No types assigned]
  • CVE Modified by [email protected]

    Jan. 31, 2024

    Action Type Old Value New Value
    Added Reference MITRE http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html [No types assigned]
  • CVE Modified by [email protected]

    Jan. 30, 2024

    Action Type Old Value New Value
    Added Reference MITRE http://www.openwall.com/lists/oss-security/2024/01/30/8 [No types assigned]
    Added Reference MITRE http://www.openwall.com/lists/oss-security/2024/01/30/6 [No types assigned]
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/
  • Modified Analysis by [email protected]

    Sep. 03, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (including) 7.7.1 OR *cpe:2.3:a:oracle:communications_performance_intelligence_center:*:*:*:*:*:*:*:* versions from (including) 10.3.0.0.0 up to (including) 10.3.0.2.1 *cpe:2.3:a:oracle:communications_performance_intelligence_center:*:*:*:*:*:*:*:* versions from (including) 10.4.0.1.0 up to (including) 10.4.0.3.1 *cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (including) 7.7.1
  • CVE Modified by [email protected]

    Apr. 20, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 04, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.oracle.com/security-alerts/cpuoct2021.html No Types Assigned https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (including) 7.7.1
  • CVE Modified by [email protected]

    Oct. 20, 2021

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpuoct2021.html [No Types Assigned]
  • Reanalysis by [email protected]

    Sep. 27, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* versions up to (excluding) 1.9.5 *cpe:2.3:a:sudo_project:sudo:1.9.5:patch1:*:*:*:*:*:* OR *cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* versions from (including) 1.8.2 up to (excluding) 1.8.32 *cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* versions from (including) 1.9.0 up to (excluding) 1.9.5 *cpe:2.3:a:sudo_project:sudo:1.9.5:-:*:*:*:*:*:* *cpe:2.3:a:sudo_project:sudo:1.9.5:patch1:*:*:*:*:*:*
  • Modified Analysis by [email protected]

    Sep. 16, 2021

    Action Type Old Value New Value
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/09/14/2 No Types Assigned http://www.openwall.com/lists/oss-security/2021/09/14/2 Mailing List, Patch, Third Party Advisory
    Changed Reference Type https://www.oracle.com//security-alerts/cpujul2021.html No Types Assigned https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory
    Added CPE Configuration AND OR *cpe:2.3:o:oracle:micros_compact_workstation_3_firmware:310:*:*:*:*:*:*:* OR cpe:2.3:h:oracle:micros_compact_workstation_3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:oracle:micros_es400_firmware:*:*:*:*:*:*:*:* versions from (including) 400 up to (including) 410 OR cpe:2.3:h:oracle:micros_es400:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:oracle:micros_kitchen_display_system_firmware:210:*:*:*:*:*:*:* OR cpe:2.3:h:oracle:micros_kitchen_display_system:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:oracle:micros_workstation_5a_firmware:5a:*:*:*:*:*:*:* OR cpe:2.3:h:oracle:micros_workstation_5a:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:oracle:micros_workstation_6_firmware:*:*:*:*:*:*:*:* versions from (including) 610 up to (including) 655 OR cpe:2.3:h:oracle:micros_workstation_6:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Sep. 15, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/09/14/2 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 20, 2021

    Action Type Old Value New Value
    Added Reference https://www.oracle.com//security-alerts/cpujul2021.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 26, 2021

    Action Type Old Value New Value
    Removed CWE NIST CWE-787
    Added CWE NIST CWE-193
  • CVE Modified by [email protected]

    Mar. 16, 2021

    Action Type Old Value New Value
    Changed Description Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character. Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.
  • Modified Analysis by [email protected]

    Mar. 08, 2021

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Jan/79 No Types Assigned http://seclists.org/fulldisclosure/2021/Jan/79 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html Mailing List, Third Party Advisory
    Changed Reference Type https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability No Types Assigned https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability Patch, Third Party Advisory
    Changed Reference Type https://www.synology.com/security/advisory/Synology_SA_21_02 No Types Assigned https://www.synology.com/security/advisory/Synology_SA_21_02 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:synology:diskstation_manager:6.2:*:*:*:*:*:*:* *cpe:2.3:a:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:beyondtrust:privilege_management_for_mac:*:*:*:*:*:*:*:* versions up to (excluding) 21.1.1 *cpe:2.3:a:beyondtrust:privilege_management_for_unix\/linux:*:*:*:*:basic:*:*:* versions up to (excluding) 10.3.2-10
  • CVE Modified by [email protected]

    Feb. 23, 2021

    Action Type Old Value New Value
    Added Reference https://www.synology.com/security/advisory/Synology_SA_21_02 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 19, 2021

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html [No Types Assigned]
    Added Reference http://seclists.org/fulldisclosure/2021/Jan/79 [No Types Assigned]
    Added Reference https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 18, 2021

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Feb/42 No Types Assigned http://seclists.org/fulldisclosure/2021/Feb/42 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/02/15/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/02/15/1 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type https://kc.mcafee.com/corporate/index?page=content&id=SB10348 No Types Assigned https://kc.mcafee.com/corporate/index?page=content&id=SB10348 Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:mcafee:web_gateway:8.2.17:*:*:*:*:*:*:* *cpe:2.3:a:mcafee:web_gateway:9.2.8:*:*:*:*:*:*:* *cpe:2.3:a:mcafee:web_gateway:10.0.4:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 15, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/02/15/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 13, 2021

    Action Type Old Value New Value
    Added Reference https://kc.mcafee.com/corporate/index?page=content&id=SB10348 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 12, 2021

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2021/Feb/42 [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 11, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html No Types Assigned http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type https://support.apple.com/kb/HT212177 No Types Assigned https://support.apple.com/kb/HT212177 Third Party Advisory
    Changed Reference Type https://www.kb.cert.org/vuls/id/794544 No Types Assigned https://www.kb.cert.org/vuls/id/794544 Third Party Advisory, US Government Resource
    Changed CPE Configuration OR *cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:* OR *cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 09, 2021

    Action Type Old Value New Value
    Added Reference https://support.apple.com/kb/HT212177 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 05, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 05, 2021

    Action Type Old Value New Value
    Added Reference https://www.kb.cert.org/vuls/id/794544 [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 03, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html No Types Assigned http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html Third Party Advisory, VDB Entry
    Changed Reference Type http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html No Types Assigned http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html No Types Assigned http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/01/26/3 No Types Assigned http://www.openwall.com/lists/oss-security/2021/01/26/3 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/01/27/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/01/27/1 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/01/27/2 No Types Assigned http://www.openwall.com/lists/oss-security/2021/01/27/2 Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202101-33 No Types Assigned https://security.gentoo.org/glsa/202101-33 Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20210128-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20210128-0001/ Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20210128-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20210128-0002/ Third Party Advisory
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2021/dsa-4839 No Types Assigned https://www.debian.org/security/2021/dsa-4839 Third Party Advisory
    Changed Reference Type https://www.openwall.com/lists/oss-security/2021/01/26/3 No Types Assigned https://www.openwall.com/lists/oss-security/2021/01/26/3 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type https://www.sudo.ws/stable.html#1.9.5p2 No Types Assigned https://www.sudo.ws/stable.html#1.9.5p2 Release Notes, Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* versions up to (excluding) 1.9.5 *cpe:2.3:a:sudo_project:sudo:1.9.5:patch1:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 03, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 01, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 29, 2021

    Action Type Old Value New Value
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 28, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20210128-0001/ [No Types Assigned]
    Added Reference https://security.netapp.com/advisory/ntap-20210128-0002/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 28, 2021

    Action Type Old Value New Value
    Changed Description Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character: Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.
  • CVE Modified by [email protected]

    Jan. 27, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 27, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/01/27/2 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 27, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/01/27/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 27, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 27, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ [No Types Assigned]
    Added Reference https://www.debian.org/security/2021/dsa-4839 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 27, 2021

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202101-33 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 26, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/01/26/3 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-3156 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-3156 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

95.81 }} -0.32%

score

0.99494

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: