CVE-2023-38408
94Vexday Risk Score
Prioritize patching. It exploitation observed by VulnCheck and has a public proof of concept.
ssvc Actcvss 9.8epss 80%
from disclosure to weapon20 days
Published on NVDJul 20
1st PoC+20d
VulnCheck+6d
exploitation probability
80%top 1% of all CVEs
observed exploitation
yesVulnCheck
15 public exploit(s)
What the vendors declare (VEX)
Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.
Red HatVEX document ↗
Fixed
32 products (1,304 components)
Red Hat Enterprise Linux AppStream (v. 8) · Red Hat Enterprise Linux AppStream E4S (v.8.4) · Red Hat Enterprise Linux AppStream EUS (v.8.6) · Red Hat Enterprise Linux BaseOS (v. 8) · Red Hat Enterprise Linux BaseOS E4S (v.8.4) · and others 27
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · n/apublic PoCs found — 15
githubgithub.com/kali-mx/CVE-2023-38408★ 52githubgithub.com/LucasPDiniz/CVE-2023-38408★ 45githubgithub.com/TX-One/CVE-2023-38408★ 7githubgithub.com/Adel2411/cve-2023-38408★ 5githubgithub.com/mrtacojr/CVE-2023-38408★ 1githubgithub.com/xitexploiter96-dot/CVE-2023-38408★ 0githubgithub.com/wxrdnx/CVE-2023-38408★ 0githubgithub.com/fazilbaig1/cve_2023_38408_scanner★ 0githubgithub.com/nonosticisiguzo-command/nmap-scan-results★ 0vulncheckvulncheck.com/xdb/3a88e4f6243eunverifiedvulncheckvulncheck.com/xdb/00905b541d53unverifiedvulncheckvulncheck.com/xdb/c556a5bb8966unverifiedvulncheckvulncheck.com/xdb/074b791e4243unverifiedvulncheckvulncheck.com/xdb/6eaa093c9fcdunverifiedcve_referencepacketstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.htmlunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.htmlhttps://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agenthttps://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351dhttps://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7cahttps://lists.debian.org/debian-lts-announce/2023/08/msg00021.htmlhttps://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=36790196https://security.gentoo.org/glsa/202307-01https://security.netapp.com/advisory/ntap-20230803-0010/https://support.apple.com/kb/HT213940