CVE-2023-38408: Remote Code Execution in OpenSSH's forwarded ssh-agent
First published: Wed Jul 19 2023(Updated: )
OpenSSH. This issue was addressed by updating OpenSSH to 9.3p2
Credit: baba yaga an anonymous researcher cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openbsd Openssh | <9.3 | |
| Openbsd Openssh | =9.3 | |
| Openbsd Openssh | =9.3-p1 | |
| Fedoraproject Fedora | =37 | |
| Fedoraproject Fedora | =38 | |
| ubuntu/openssh | <9.3 | 9.3 |
| ubuntu/openssh | <1:8.2 | 1:8.2 |
| ubuntu/openssh | <1:8.9 | 1:8.9 |
| ubuntu/openssh | <1:9.0 | 1:9.0 |
| ubuntu/openssh | <1:7.6 | 1:7.6 |
| ubuntu/openssh | <1:6.6 | 1:6.6 |
| ubuntu/openssh | <1:7.2 | 1:7.2 |
| ubuntu/openssh | <1:9.3 | 1:9.3 |
| debian/openssh | <=1:7.9p1-10+deb10u2 | 1:7.9p1-10+deb10u4 1:8.4p1-5+deb11u3 1:9.2p1-2+deb12u2 1:9.6p1-4 1:9.6p1-5 |
| Apple macOS Sonoma | <14 | 14 |
| IBM AIX | <=7.2 | |
| IBM AIX | <=7.3 | |
| IBM VIOS | <=3.1 |
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Reference Links
- https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8
- https://www.openssh.com/txt/release-9.3p2
- https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt
- https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent
- https://news.ycombinator.com/item?id=36790196
- https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca
- https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d
- https://www.openssh.com/security.html
- https://security.gentoo.org/glsa/202307-01
- http://www.openwall.com/lists/oss-security/2023/07/20/1
- http://www.openwall.com/lists/oss-security/2023/07/20/2
- http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/
- http://www.openwall.com/lists/oss-security/2023/09/22/11
- http://www.openwall.com/lists/oss-security/2023/09/22/9
- https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/
- https://security.netapp.com/advisory/ntap-20230803-0010/
- https://support.apple.com/kb/HT213940
- https://launchpad.net/bugs/cve/CVE-2023-38408
- https://access.redhat.com/security/cve/CVE-2016-10009
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2224179
- https://access.redhat.com/errata/RHSA-2023:4329
- https://access.redhat.com/errata/RHSA-2023:4381
- https://access.redhat.com/errata/RHSA-2023:4383
- https://access.redhat.com/errata/RHSA-2023:4384
- https://access.redhat.com/errata/RHSA-2023:4382
- https://access.redhat.com/errata/RHSA-2023:4412
- https://access.redhat.com/errata/RHSA-2023:4413
- https://access.redhat.com/errata/RHSA-2023:4419
- https://access.redhat.com/errata/RHSA-2023:4428
- https://access.redhat.com/security/cve/cve-2023-38408
- https://access.redhat.com/errata/RHSA-2023:4889
- https://bugzilla.redhat.com/show_bug.cgi?id=2224173
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-38408
- https://ubuntu.com/security/notices/USN-6242-1
- https://ubuntu.com/security/notices/USN-6242-2
- https://nvd.nist.gov/vuln/detail/CVE-2023-38408
- https://security-tracker.debian.org/tracker/CVE-2023-38408
- https://github.com/openssh/openssh-portable/commit/892506b13654301f69f9545f48213fc210e5c5cc
- https://github.com/openssh/openssh-portable/commit/1f2731f5d7a8f8a8385c6031667ed29072c0d92a
- https://github.com/openssh/openssh-portable/commit/29ef8a04866ca14688d5b7fed7b8b9deab851f77
- https://github.com/openssh/openssh-portable/commit/099cdf59ce1e72f55d421c8445bf6321b3004755
- https://ubuntu.com/security/CVE-2023-38408
- 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://www.openwall.com/lists/oss-security/2023/07/19/9
- https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408
- https://support.apple.com/en-us/HT213940 (Advisory)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/261022
- https://www.ibm.com/support/pages/node/7028420 (Advisory)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2023-40384
- CVE-2023-32377
- CVE-2023-38615
- CVE-2023-40448
- CVE-2023-40432
- CVE-2023-42871
- CVE-2023-40399
- CVE-2023-40410
- CVE-2023-42872
- CVE-2023-42929
- CVE-2023-42925
- CVE-2023-38612
- CVE-2023-32361
- CVE-2023-35984
- CVE-2023-40402
- CVE-2023-40426
- CVE-2023-42876
- CVE-2023-41065
- CVE-2023-29497
- CVE-2023-38596
- CVE-2023-42943
- CVE-2023-40406
- CVE-2023-40420
- CVE-2023-40528
- CVE-2023-40438
- CVE-2023-41994
- CVE-2023-40407
- CVE-2023-32396
- CVE-2023-42933
- CVE-2023-41980
- CVE-2023-40411
- CVE-2023-40395
- CVE-2023-40391
- CVE-2023-40441
- CVE-2023-42959
- CVE-2023-23495
- CVE-2023-40434
- CVE-2023-38586
- CVE-2023-40436
- CVE-2023-40396
- CVE-2023-41995
- CVE-2023-42870
- CVE-2023-41981
- CVE-2023-41984
- CVE-2023-40429
- CVE-2023-41060
- CVE-2023-41067
- CVE-2023-40400
- CVE-2023-40454
- CVE-2023-41073
- CVE-2023-40403
- CVE-2023-40427
- CVE-2023-42957
- CVE-2023-32421
- CVE-2023-42826
- CVE-2023-42918
- CVE-2023-41986
- CVE-2023-40455
- CVE-2023-40386
- CVE-2023-38408
- CVE-2023-40401
- CVE-2023-40393
- CVE-2023-42949
- CVE-2023-42934
- CVE-2023-37448
- CVE-2023-38607
- CVE-2023-41987
- CVE-2023-41063
- CVE-2023-40422
- CVE-2023-39233
- CVE-2023-40388
- CVE-2023-35990
- CVE-2023-40417
- CVE-2023-40452
- CVE-2023-40430
- CVE-2023-41996
- CVE-2023-41078
- CVE-2023-41070
- CVE-2023-40541
- CVE-2023-41079
- CVE-2023-40443
- CVE-2023-41968
- CVE-2023-40450
- CVE-2023-42948
- CVE-2023-40424
- CVE-2023-39434
- CVE-2023-40414
- CVE-2023-41074
- CVE-2023-35074
- CVE-2023-41993
- CVE-2023-32359
- CVE-2023-40385
- CVE-2023-42833
- CVE-2023-38610
- CVE-2023-41066
- CVE-2023-41979
Frequently Asked Questions
What is CVE-2023-38408?
CVE-2023-38408 is a vulnerability in OpenSSH that allows for remote code execution if an agent is forwarded to an attacker-controlled system.
What is the severity of CVE-2023-38408?
CVE-2023-38408 has a severity rating of 9.8, which is considered critical.
How does CVE-2023-38408 affect OpenSSH versions?
CVE-2023-38408 affects OpenSSH versions before 9.3p2.
How can I fix CVE-2023-38408?
To fix CVE-2023-38408, update OpenSSH to version 9.3p2 or later.
Where can I find more information about CVE-2023-38408?
You can find more information about CVE-2023-38408 in the references provided: [link1](https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8), [link2](https://www.openssh.com/txt/release-9.3p2), [link3](https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt)
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