9.8
CRITICAL
CVE-2023-38408
OpenSSH SSH-Agent Remote Code Execution via Insufficient Trust in Search Path
Description

The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009.

INFO

Published Date :

July 20, 2023, 3:15 a.m.

Last Modified :

Nov. 21, 2024, 8:13 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2023-38408 has a 33 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-2023-38408 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 Fedoraproject fedora
1 Openbsd openssh
: Total Affected Vendor : 2 | Products : 2
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-2023-38408.

URL Resource
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2023/07/20/1 Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/20/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/22/11
http://www.openwall.com/lists/oss-security/2023/09/22/9
https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent Third Party Advisory
https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8 Patch
https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d Patch
https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca Patch
https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/
https://news.ycombinator.com/item?id=36790196 Issue Tracking Patch
https://security.gentoo.org/glsa/202307-01 Third Party Advisory
https://security.netapp.com/advisory/ntap-20230803-0010/
https://support.apple.com/kb/HT213940
https://www.openssh.com/security.html Vendor Advisory
https://www.openssh.com/txt/release-9.3p2 Release Notes
https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt Exploit Third Party Advisory
https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2023/07/20/1 Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/20/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/22/11
http://www.openwall.com/lists/oss-security/2023/09/22/9
https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent Third Party Advisory
https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8 Patch
https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d Patch
https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca Patch
https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/
https://news.ycombinator.com/item?id=36790196 Issue Tracking Patch
https://security.gentoo.org/glsa/202307-01 Third Party Advisory
https://security.netapp.com/advisory/ntap-20230803-0010/
https://support.apple.com/kb/HT213940
https://www.openssh.com/security.html Vendor Advisory
https://www.openssh.com/txt/release-9.3p2 Release Notes
https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt Exploit Third Party Advisory
https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408

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
Nick-Morbid/cve-2023-38408

None

Python

Updated: 1 week ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2024, 11:30 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
dasarivarunreddy/free-rooms-tryhackme

None

Updated: 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Dec. 8, 2024, 1:58 p.m. This repo has been linked 10 different CVEs too.
Profile Photo
krlabs/openssh-vulnerabilities

OpenSSH Vulnerabilities list

cve openssh vulnerabilities

Updated: 2 weeks, 3 days ago
0 stars 0 fork 0 watcher
Born at : Dec. 4, 2024, 1:10 p.m. This repo has been linked 22 different CVEs too.
Profile Photo
Osama-Montaser/DEPI_Project

Vulnerability assessment, penetration testing, and remediation plan

Updated: 1 month, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Oct. 23, 2024, 5:34 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
pentestfunctions/thm-room-points

Need help finding what room to do next if grinding points?

Python

Updated: 2 weeks, 5 days ago
4 stars 2 fork 2 watcher
Born at : Oct. 20, 2024, 4:57 a.m. This repo has been linked 15 different CVEs too.
Profile Photo
Hunterdii/tryhackme-free-rooms

Hello, aspiring hackers! 🕵️‍♂️ Here’s a list of 500+ Free TryHackMe rooms to kickstart your cybersecurity journey. These rooms are absolutely free, and I’ve organized them by topic to help you dive in right away. 🛠️

active-directory android ctf-challenges ctf-events cyber-forensics cyber-security free hacking linux malware-analysis networking privilege-escalation reverse-engineering rooms steganography tryhackme web-penetration-testing wifi-hacking windows good-first-issue

Updated: 2 weeks, 2 days ago
16 stars 2 fork 2 watcher
Born at : Oct. 18, 2024, 11:20 a.m. This repo has been linked 10 different CVEs too.
Profile Photo
fazilbaig1/cve_2023_38408_scanner

Vulnerability Overview CVE-2023-38408 affects OpenSSH versions < 9.3p2 and stems from improper validation of data when SSH agent forwarding is enabled. When users connect to a remote server with ssh -A, they allow the agent on their local machine to be used for authentication to further systems

Python

Updated: 2 months ago
0 stars 0 fork 0 watcher
Born at : Oct. 17, 2024, 1:03 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
0xxnum/CVE-2023-38408

None

Shell

Updated: 3 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 8, 2024, 2:34 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
alvarigno22/NodeClimb-DockerLab

DockerLab - Machine

Updated: 3 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Aug. 24, 2024, 5:09 p.m. This repo has been linked 6 different CVEs too.
Profile Photo
alvarigno22/ChocolateFire-DockerLab

DockerLab - Machine

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 19, 2024, 3:29 p.m. This repo has been linked 9 different CVEs too.
Profile Photo
alvarigno/ChocolateFire-DockerLab

Máquina DockerLab

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 18, 2024, 1:13 a.m. This repo has been linked 9 different CVEs too.
Profile Photo
achintyadesai/eval2sample1

None

Makefile C

Updated: 4 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Aug. 12, 2024, 3:02 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
SinMaven/BugSauce

None

Updated: 4 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : Aug. 6, 2024, 10:47 a.m. This repo has been linked 10 different CVEs too.
Profile Photo
mrtacojr/CVE-2023-38408

Script para eliminar vulnerabilidad de openssh de ubuntu 22.04 LTS

Shell

Updated: 5 months ago
1 stars 0 fork 0 watcher
Born at : July 17, 2024, 2 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Dh4v4l8/TRYHACKME-ROOMS

None

Updated: 5 months ago
0 stars 0 fork 0 watcher
Born at : July 13, 2024, 1:58 p.m. This repo has been linked 9 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-2023-38408 vulnerability anywhere in the article.

  • The Register
QNAP and Veritas dump 30-plus vulns over the weekend

Taiwanese NAS maker QNAP addressed 24 vulnerabilities across various products over the weekend. The flaws include two critical and nine "high" severity vulnerabilities, potentially resulting in code e ... Read more

Published Date: Nov 26, 2024 (3 weeks, 5 days ago)
CVE-2024-53915 CVE-2024-53914 CVE-2024-53913 CVE-2024-53912 CVE-2024-53911 CVE-2024-53910 CVE-2024-53909 CVE-2023-38408 CVE-2021-41617 CVE-2020-14145

The following table lists the changes that have been made to the CVE-2023-38408 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://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html
    Added Reference http://www.openwall.com/lists/oss-security/2023/07/20/1
    Added Reference http://www.openwall.com/lists/oss-security/2023/07/20/2
    Added Reference http://www.openwall.com/lists/oss-security/2023/09/22/11
    Added Reference http://www.openwall.com/lists/oss-security/2023/09/22/9
    Added Reference https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent
    Added Reference https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8
    Added Reference https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d
    Added Reference https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca
    Added Reference https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/
    Added Reference https://news.ycombinator.com/item?id=36790196
    Added Reference https://security.gentoo.org/glsa/202307-01
    Added Reference https://security.netapp.com/advisory/ntap-20230803-0010/
    Added Reference https://support.apple.com/kb/HT213940
    Added Reference https://www.openssh.com/security.html
    Added Reference https://www.openssh.com/txt/release-9.3p2
    Added Reference https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt
    Added Reference https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 15, 2024

    Action Type Old Value New Value
    Added CWE CISA-ADP CWE-428
    Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Apr. 04, 2024

    Action Type Old Value New Value
    Added Reference MITRE https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408 [No types assigned]
  • CVE Modified by [email protected]

    Dec. 22, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://support.apple.com/kb/HT213940 [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/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/
  • CVE Modified by [email protected]

    Sep. 23, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/09/22/11 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 22, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/09/22/9 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 17, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 03, 2023

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20230803-0010/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 31, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/07/20/1 No Types Assigned http://www.openwall.com/lists/oss-security/2023/07/20/1 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/07/20/2 No Types Assigned http://www.openwall.com/lists/oss-security/2023/07/20/2 Mailing List, Third Party Advisory
    Changed Reference Type https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent No Types Assigned https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent Third Party Advisory
    Changed Reference Type https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8 No Types Assigned https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8 Patch
    Changed Reference Type https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d No Types Assigned https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d Patch
    Changed Reference Type https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca No Types Assigned https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca Patch
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/ Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/ Mailing List
    Changed Reference Type https://news.ycombinator.com/item?id=36790196 No Types Assigned https://news.ycombinator.com/item?id=36790196 Issue Tracking, Patch
    Changed Reference Type https://security.gentoo.org/glsa/202307-01 No Types Assigned https://security.gentoo.org/glsa/202307-01 Third Party Advisory
    Changed Reference Type https://www.openssh.com/security.html No Types Assigned https://www.openssh.com/security.html Vendor Advisory
    Changed Reference Type https://www.openssh.com/txt/release-9.3p2 No Types Assigned https://www.openssh.com/txt/release-9.3p2 Release Notes
    Changed Reference Type https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt No Types Assigned https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt Exploit, Third Party Advisory
    Added CWE NIST CWE-428
    Added CPE Configuration OR *cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* versions up to (excluding) 9.3 *cpe:2.3:a:openbsd:openssh:9.3:-:*:*:*:*:*:* *cpe:2.3:a:openbsd:openssh:9.3:p1:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 28, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 23, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 20, 2023

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 20, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/07/20/2 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 20, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/07/20/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 20, 2023

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202307-01 [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-2023-38408 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-2023-38408 weaknesses.

Exploit Prediction

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

4.87 }} -2.74%

score

0.92655

percentile

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