critical
9.8
CWE
428 119 20 362 416
Advisory Published
CVE Published
Updated

CVE-2023-38408: Remote Code Execution in OpenSSH's forwarded ssh-agent

First published: Wed Jul 19 2023(Updated: )

Airport. A permissions issue was addressed with improved redaction of sensitive information.

Credit: baba yaga an anonymous researcher Cristian Dinca Computer ScienceRomania JeongOhKyea Theori이준성(Junsung Lee) Cross RepublicKirin @Pwnrin NorthSeaWojciech Regula SecuRingHalle Winkler Politepix @hallewinkler Sei K. Mickey Jin @patch1t Noah Roskin-Frazee Professor Jason Lau (ZeroClicks.ai Lab) Noah Roskin-Frazee Offensive SecurityPr Offensive Security Offensive SecurityCsaba Fitzl @theevilbit Offensive SecurityAntonio Zekic @antoniozekic Dataflow SecurityRon Masas ImpervaMurray Mike Mikko Kenttälä ) @Turmio_ SensorFuYiğit Can YILMAZ @yilmazcanyigit Certik Skyfall Team Certik Skyfall Team Ant Security Light Ant Security Lightpattern-f @pattern_F_ Ant Security LightZweig Kunlun LabLinus Henze Pinauten GmbHPan ZhenPeng @Peterpan0927 STAR Labs SG PteMichael (Biscuit) Thomas 张师傅(@京东蓝军) Joseph Ravichandran @0xjprx MIT CSAILFerdous Saljooki @malwarezoo Jamf SoftwareZhipeng Huo @R3dF09 Tencent Security Xuanwu LabDohyun Lee @l33d0hyun PK SecurityAdam M. SecuRing SecuRingAdam M. BreakPoint Security Research BreakPoint Security ResearchRon Masas BreakPoint Security ResearchMeng Zhang (鲸落) NorthSeaBrian McNulty Texts TextsKishan Bagaria TextsMichael DePlante @izobashi Trend Micro Zero Day InitiativeGergely Kalman @gergely_kalman Kirin @Pwnrin weize she Berke Kırbaş Harsh Jaiswal Serkan Erayabakan George Mason UniversityDavid Kotval George Mason UniversityAkincibor George Mason UniversitySina Ahmadi George Mason UniversityBilly Tabrizi Kirin @Pwnrin SecuRingTomi Tokics @tomitokics iTomsn0wLuan Herrera @lbherrera_ Adriatik Raci Sentry CybersecurityNarendra Bhati (twitter.com/imnarendrabhati) Suma Soft PvtPune (India) Noah Roskin-Frazee (ZeroClicks.ai Lab) James Duffy (mangoSecure) Ron Masas BreakPointJames Hutchins Thijs Alkemade @xnyhps Computest Sector 7Andrew Haggard Arsenii Kostromin (0x3c3e) Offensive SecurityJoshua Jewett @JoshJewett33 Offensive SecurityFrancisco Alonso @revskills PK Security PK SecurityFrancisco Alonso @revskills Jie Ding @Lime HKUS3 LabAjou University Abysslab Dong Jun Kim @smlijun Jong Seong Kim @nevul37 Bill Marczak The Citizen Lab at The University of Toronto's Munk SchoolMaddie Stone Google's Threat Analysis GroupClaire Houston Anonymous Dong Jun Kim @smlijun AbyssLab AbyssLabJong Seong Kim @nevul37 AbyssLabWang Yu CyberservalAn anonymous researcher MacEnhanceJeremy Legendre MacEnhanceFelix Kratz Koh M. Nakagawa @tsunek0h Adam M. Yishu Wang Will Brattain at Trail Bitszer0k Mohamed GHANNAM @_simo36 Tim Michaud @TimGMichaud MoveworksWojciech Reguła @_r3ggi Chris Ross (Zoom) ABC Research s.r.o. w0wbox cve@mitre.org

Affected SoftwareAffected VersionHow to fix
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<14
14
OpenSSH<9.3
OpenSSH=9.3
OpenSSH=9.3-p1
Fedora=37
Fedora=38
IBM Security Verify Governance - Identity Manager<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager<=ISVG 10.0.2

Remedy

https://github.com/openssh/openssh-portable/commit/892506b13654301f69f9545f48213fc210e5c5cc

Remedy

https://github.com/openssh/openssh-portable/commit/1f2731f5d7a8f8a8385c6031667ed29072c0d92a

Remedy

https://github.com/openssh/openssh-portable/commit/29ef8a04866ca14688d5b7fed7b8b9deab851f77

Remedy

https://github.com/openssh/openssh-portable/commit/099cdf59ce1e72f55d421c8445bf6321b3004755

Remedy

https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8

Remedy

https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d

Remedy

https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca

Remedy

https://news.ycombinator.com/item?id=36790196

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

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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