Description

In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing MODULE_PATH=/dir/with/module zmodload with a module that calls setuid().

INFO

Published Date :

Feb. 24, 2020, 2:15 p.m.

Last Modified :

Nov. 21, 2024, 4:37 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2019-20044 has a 1 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-2019-20044 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 Apple macos
2 Apple mac_os_x
3 Apple iphone_os
4 Apple tvos
5 Apple watchos
6 Apple ipados
1 Linux linux_kernel
1 Fedoraproject fedora
1 Debian debian_linux
1 Zsh zsh
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-2019-20044.

URL Resource
http://seclists.org/fulldisclosure/2020/May/49 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/May/53 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/May/55 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/May/59 Mailing List Third Party Advisory
http://zsh.sourceforge.net/releases.html Release Notes Third Party Advisory
https://github.com/XMB5/zsh-privileged-upgrade Broken Link
https://lists.debian.org/debian-lts-announce/2020/03/msg00004.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/
https://security.gentoo.org/glsa/202003-55 Third Party Advisory
https://support.apple.com/HT211168 Third Party Advisory
https://support.apple.com/HT211170 Third Party Advisory
https://support.apple.com/HT211171 Third Party Advisory
https://support.apple.com/HT211175 Third Party Advisory
https://support.apple.com/kb/HT211168 Third Party Advisory
https://support.apple.com/kb/HT211170 Third Party Advisory
https://support.apple.com/kb/HT211171 Third Party Advisory
https://support.apple.com/kb/HT211175 Third Party Advisory
https://www.zsh.org/mla/zsh-announce/141 Release Notes Vendor Advisory
http://seclists.org/fulldisclosure/2020/May/49 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/May/53 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/May/55 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/May/59 Mailing List Third Party Advisory
http://zsh.sourceforge.net/releases.html Release Notes Third Party Advisory
https://github.com/XMB5/zsh-privileged-upgrade Broken Link
https://lists.debian.org/debian-lts-announce/2020/03/msg00004.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/
https://security.gentoo.org/glsa/202003-55 Third Party Advisory
https://support.apple.com/HT211168 Third Party Advisory
https://support.apple.com/HT211170 Third Party Advisory
https://support.apple.com/HT211171 Third Party Advisory
https://support.apple.com/HT211175 Third Party Advisory
https://support.apple.com/kb/HT211168 Third Party Advisory
https://support.apple.com/kb/HT211170 Third Party Advisory
https://support.apple.com/kb/HT211171 Third Party Advisory
https://support.apple.com/kb/HT211175 Third Party Advisory
https://www.zsh.org/mla/zsh-announce/141 Release Notes Vendor 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).

None

Shell Makefile M4 Vim Script Roff Perl C Awk sed

Updated: 1 year, 3 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 18, 2023, 1:48 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-2019-20044 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-20044 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.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2020/May/49
    Added Reference http://seclists.org/fulldisclosure/2020/May/53
    Added Reference http://seclists.org/fulldisclosure/2020/May/55
    Added Reference http://seclists.org/fulldisclosure/2020/May/59
    Added Reference http://zsh.sourceforge.net/releases.html
    Added Reference https://github.com/XMB5/zsh-privileged-upgrade
    Added Reference https://lists.debian.org/debian-lts-announce/2020/03/msg00004.html
    Added Reference https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/
    Added Reference https://security.gentoo.org/glsa/202003-55
    Added Reference https://support.apple.com/HT211168
    Added Reference https://support.apple.com/HT211170
    Added Reference https://support.apple.com/HT211171
    Added Reference https://support.apple.com/HT211175
    Added Reference https://support.apple.com/kb/HT211168
    Added Reference https://support.apple.com/kb/HT211170
    Added Reference https://support.apple.com/kb/HT211171
    Added Reference https://support.apple.com/kb/HT211175
    Added Reference https://www.zsh.org/mla/zsh-announce/141
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • 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/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/
  • CPE Deprecation Remap by [email protected]

    Jan. 09, 2023

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions from (excluding) 13.5 OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (excluding) 13.5
  • Modified Analysis by [email protected]

    Sep. 16, 2021

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2020/May/49 No Types Assigned http://seclists.org/fulldisclosure/2020/May/49 Mailing List, Third Party Advisory
    Changed Reference Type http://seclists.org/fulldisclosure/2020/May/53 No Types Assigned http://seclists.org/fulldisclosure/2020/May/53 Mailing List, Third Party Advisory
    Changed Reference Type http://seclists.org/fulldisclosure/2020/May/55 No Types Assigned http://seclists.org/fulldisclosure/2020/May/55 Mailing List, Third Party Advisory
    Changed Reference Type http://seclists.org/fulldisclosure/2020/May/59 No Types Assigned http://seclists.org/fulldisclosure/2020/May/59 Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/03/msg00004.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/03/msg00004.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/ Mailing List, Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202003-55 No Types Assigned https://security.gentoo.org/glsa/202003-55 Third Party Advisory
    Changed Reference Type https://support.apple.com/HT211168 No Types Assigned https://support.apple.com/HT211168 Third Party Advisory
    Changed Reference Type https://support.apple.com/HT211170 No Types Assigned https://support.apple.com/HT211170 Third Party Advisory
    Changed Reference Type https://support.apple.com/HT211171 No Types Assigned https://support.apple.com/HT211171 Third Party Advisory
    Changed Reference Type https://support.apple.com/HT211175 No Types Assigned https://support.apple.com/HT211175 Third Party Advisory
    Changed Reference Type https://support.apple.com/kb/HT211168 No Types Assigned https://support.apple.com/kb/HT211168 Third Party Advisory
    Changed Reference Type https://support.apple.com/kb/HT211170 No Types Assigned https://support.apple.com/kb/HT211170 Third Party Advisory
    Changed Reference Type https://support.apple.com/kb/HT211171 No Types Assigned https://support.apple.com/kb/HT211171 Third Party Advisory
    Changed Reference Type https://support.apple.com/kb/HT211175 No Types Assigned https://support.apple.com/kb/HT211175 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 13.5 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 13.5 *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions from (including) 10.13.0 up to (excluding) 10.13.6 *cpe:2.3:o:apple:mac_os_x:10.13.6:-:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-002:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-003:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-001:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-002:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-003:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-004:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-005:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-006:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-007:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-001:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-002:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions from (including) 10.14.0 up to (excluding) 10.14.6 *cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions from (including) 10.15 up to (excluding) 10.15.5 *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions up to (excluding) 10.15.5 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 13.4.5 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 6.2.5
  • CPE Deprecation Remap by [email protected]

    Sep. 08, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:apple:mac_os:-:*:*:*:*:*:*:* OR *cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 01, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 11, 2020

    Action Type Old Value New Value
    Added Reference https://support.apple.com/HT211168 [No Types Assigned]
    Added Reference https://support.apple.com/HT211170 [No Types Assigned]
    Added Reference https://support.apple.com/HT211171 [No Types Assigned]
    Added Reference https://support.apple.com/HT211175 [No Types Assigned]
  • CVE Modified by [email protected]

    May. 29, 2020

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2020/May/59 [No Types Assigned]
    Added Reference http://seclists.org/fulldisclosure/2020/May/55 [No Types Assigned]
    Added Reference http://seclists.org/fulldisclosure/2020/May/53 [No Types Assigned]
  • CVE Modified by [email protected]

    May. 29, 2020

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2020/May/49 [No Types Assigned]
  • CVE Modified by [email protected]

    May. 27, 2020

    Action Type Old Value New Value
    Added Reference https://support.apple.com/kb/HT211175 [No Types Assigned]
    Added Reference https://support.apple.com/kb/HT211170 [No Types Assigned]
    Added Reference https://support.apple.com/kb/HT211171 [No Types Assigned]
    Added Reference https://support.apple.com/kb/HT211168 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 25, 2020

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202003-55 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 13, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 13, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 03, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/03/msg00004.html [No Types Assigned]
  • Reanalysis by [email protected]

    Feb. 27, 2020

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Initial Analysis by [email protected]

    Feb. 26, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://zsh.sourceforge.net/releases.html No Types Assigned http://zsh.sourceforge.net/releases.html Release Notes, Third Party Advisory
    Changed Reference Type https://github.com/XMB5/zsh-privileged-upgrade No Types Assigned https://github.com/XMB5/zsh-privileged-upgrade Broken Link
    Changed Reference Type https://www.zsh.org/mla/zsh-announce/141 No Types Assigned https://www.zsh.org/mla/zsh-announce/141 Release Notes, Vendor Advisory
    Added CWE NIST CWE-273
    Added CPE Configuration AND OR *cpe:2.3:a:zsh:zsh:*:*:*:*:*:*:*:* versions up to (excluding) 5.8 OR cpe:2.3:o:apple:mac_os:-:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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-2019-20044 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-2019-20044 weaknesses.

Exploit Prediction

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

0.05 }} 0.00%

score

0.14042

percentile

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