Description
In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssh | 1:9.6p1-1 | — |
| Debian 13 | openssh | 1:9.6p1-1 | — |
| Debian 12 | openssh | 1:9.2p1-2+deb12u2 | DSA-5586-1 |
| Debian 11 | openssh | 1:8.4p1-5+deb11u3 | DSA-5586-1 |
| Debian 10 | openssh | 1:7.9p1-10+deb10u4 | DLA-3694-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | openssh-ssh1 | No fix yet | — |
| Ubuntu 26.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu 25.10 | openssh-ssh1 | No fix yet | — |
| Ubuntu 24.04 LTS | openssh | 1:9.6p1-3ubuntu1 | — |
| Ubuntu 24.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu 22.04 LTS | openssh | 1:8.9p1-3ubuntu0.6 | USN-6565-1 |
| Ubuntu 22.04 LTS | openssh-ssh1 | No fix yet | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | openssh | 1:8.2p1-4ubuntu0.11 | USN-6565-1 |
| Ubuntu 20.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu 18.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu Pro FIPS 20.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | openssh | 1:8.2p1-4ubuntu0.fips.0.11 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | openssh | 1:7.9p1-10~ubuntu18.04.fips.0.9 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | openssh | 1:7.2p2-4ubuntu2.fips.2.10.6 | — |
| Ubuntu Pro 18.04 LTS | openssh | 1:7.6p1-4ubuntu0.7+esm3 | USN-6560-2 |
| Ubuntu Pro 16.04 LTS | openssh | 1:7.2p2-4ubuntu2.10+esm6 | USN-6560-3, USN-6560-2 |
| Ubuntu Pro 14.04 LTS | openssh | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | openssh +4 | 8.7p1-34.el9_3.3 | RHSA-2024:1130 |
| RHEL 9 | pam_ssh_agent_auth | 0.10.4-5.34.el9_3.3 | RHSA-2024:1130 |
| RHEL 8 | openssh +6 | 8.0p1-19.el8_9.2 | RHSA-2024:0606 |
| RHEL 8 | pam_ssh_agent_auth | 0.10.3-7.19.el8_9.2 | RHSA-2024:0606 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | openssh +4 | 8.7p1-30.el9_2.3 | RHSA-2024:0455 |
| RHEL 9.2 EUS | pam_ssh_agent_auth | 0.10.4-5.30.el9_2.3 | RHSA-2024:0455 |
| RHEL 9.0 E4S | openssh +4 | 8.7p1-13.el9_0.1 | RHSA-2026:1790 |
| RHEL 9.0 E4S | pam_ssh_agent_auth | 0.10.4-4.13.el9_0.4 | RHSA-2026:1790 |
| RHEL 8.8 EUS | openssh +6 | 8.0p1-19.el8_8.2 | RHSA-2024:0594 |
| RHEL 8.8 EUS | pam_ssh_agent_auth | 0.10.3-7.19.el8_8.2 | RHSA-2024:0594 |
| RHEL 8.6 EUS | openssh +6 | 8.0p1-15.el8_6.3 | RHSA-2024:0429 |
| RHEL 8.6 EUS | pam_ssh_agent_auth | 0.10.3-7.15.el8_6.3 | RHSA-2024:0429 |
| RHEL 8.4 EUS Long Life | openssh +2 | 8.0p1-7.el8_4.2 | RHSA-2026:22329 |
| RHEL 8.4 AUS | openssh +2 | 8.0p1-7.el8_4.2 | RHSA-2026:22329 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | openssh +4 | 8.7p1-34.el9_3.3 | ALSA-2024:1130 |
| AlmaLinux 9 | pam_ssh_agent_auth | 0.10.4-5.34.el9_3.3 | ALSA-2024:1130 |
| AlmaLinux 8 | openssh +6 | 8.0p1-19.el8_9.2 | ALSA-2024:0606 |
| AlmaLinux 8 | pam_ssh_agent_auth | 0.10.3-7.19.el8_9.2 | ALSA-2024:0606 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | openssh | 8.0p1-19.el8_9.2 | RLSA-2024:0606 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | openssh +1 | 9.6p1-150600.6.6.1 | SUSE-SU-2024:2393-1 |
| SLES 15 SP5 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLES 15 SP4 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLES 15 SP3 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLES 15 SP2 | openssh +1 | 8.1p1-150200.5.46.1 | SUSE-SU-2024:0603-1 |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | openssh +1 | 7.2p2-81.12.1 | SUSE-SU-2024:0604-1 |
| SLES 12 SP5 | openssh-testuser | 0-81.12.1 | SUSE-SU-2024:0604-1 |
| SLES for SAP 15 SP4 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLES for SAP 15 SP3 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLES for SAP 15 SP2 | openssh +1 | 8.1p1-150200.5.46.1 | SUSE-SU-2024:0603-1 |
| SLES for SAP 12 SP5 | openssh +1 | 7.2p2-81.12.1 | SUSE-SU-2024:0604-1 |
| SLE Micro 6.0 | openssh | 9.6p1-2.1 | SUSE-SU-2025:20009-1 |
| SLE Micro 5.5 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLE Micro 5.4 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLE Micro 5.3 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLE Micro 5.2 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLE Micro 5.1 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLE HPC 15 SP4 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLE HPC 15 SP3 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SLE HPC 15 SP2 | openssh +1 | 8.1p1-150200.5.46.1 | SUSE-SU-2024:0603-1 |
| SUSE Manager Server 4.3 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SUSE Manager Proxy 4.3 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| SUSE Enterprise Storage 7.1 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssh | 9.6p1-11.1 | openSUSE-SU-2024:14113-1 |
| openSUSE Leap 15.6 | openssh +1 | 9.6p1-150600.6.6.1 | SUSE-SU-2024:2393-1 |
| openSUSE Leap 15.5 | openssh +1 | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
| openSUSE Leap Micro 5.3 | openssh | 8.4p1-150300.3.30.1 | SUSE-SU-2024:0596-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openssh | 9.6_p1-r0 | — |
| Alpine v3.23 | openssh | 9.6_p1-r0 | — |
| Alpine v3.22 | openssh | 9.6_p1-r0 | — |
| Alpine v3.21 | openssh | 9.6_p1-r0 | — |
| Alpine v3.20 | openssh | 9.6_p1-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | openssh | 9.6_p1-r0 | — |
| Alpine v3.17 | openssh | 9.1_p1-r5 | — |
| Alpine v3.16 | openssh | 9.0_p1-r5 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | openssh +3 | 8.7p1-8.amzn2023.0.10 | ALAS2023-2024-570 |
| Amazon Linux 2023 | pam_ssh_agent_auth | 0.10.4-4.8.amzn2023.0.10 | ALAS2023-2024-570 |
| Amazon Linux 2 | openssh +7 | 7.4p1-22.amzn2.0.7 | ALAS2-2024-2507 |
| Amazon Linux 2 | pam_ssh_agent_auth | 0.10.3-2.22.amzn2.0.7 | ALAS2-2024-2507 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | openssh | 9.7p1-1 | — |
| Azure Linux 2 (CBL-Mariner) | openssh | 8.9p1-3 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | openssh +4 | 8.7p1-34.el9_3.3 | ELSA-2024-1130 |
| Oracle Linux 9 | pam_ssh_agent_auth | 0.10.4-5.34.el9_3.3 | ELSA-2024-1130 |
| Oracle Linux 8 | openssh +6 | 8.0p1-19.0.1.el8_9.2 | ELSA-2024-12164 |
| Oracle Linux 8 | pam_ssh_agent_auth | 0.10.3-7.19.0.1.el8_9.2 | ELSA-2024-12164 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 23 repositories · most starred shown
-
vin01/poc-proxycommand-vulnerable ★ 50 · Sep 28, 2023
Proof of conept to exploit vulnerable proxycommand configurations on ssh clients (CVE-2023-51385)
-
LtmThink/CVE-2023-51385_test ★ 7 · Dec 25, 2023
一个验证对CVE-2023-51385
-
Le1a/CVE-2023-51385 ★ 5 · Dec 25, 2023
OpenSSH ProxyCommand RCE
-
WOOOOONG/CVE-2023-51385 ★ 2 · Jan 2, 2024
CVE-2023-51385 PoC Exploit
-
julienbrs/exploit-CVE-2023-51385 ★ 0 · Jan 3, 2024
-
julienbrs/malicious-exploit-CVE-2023-51385 ★ 0 · Jan 3, 2024
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power1314520/CVE-2023-51385_test ★ 0 · Dec 30, 2023
一个验证对CVE-2023-51385
-
WLaoDuo/CVE-2023-51385_poc-test ★ 0 · Dec 26, 2023
CVE-2023-51385;OpenSSH ProxyCommand RCE;OpenSSH <9.6 命令注入漏洞poc
-
FeatherStark/CVE-2023-51385 ★ 0 · Dec 25, 2023
-
watarium/poc-cve-2023-51385 ★ 0 · Dec 25, 2023
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 44
- ALSA-2024:1130 Moderate: openssh security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0606 Moderate: openssh security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:1130 Red Hat Security Advisory: openssh security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0594 Red Hat Security Advisory: openssh security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0606 Red Hat Security Advisory: openssh security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0429 Red Hat Security Advisory: openssh security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0455 Red Hat Security Advisory: openssh security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- SSA-082556 SSA-082556: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.5 Siemens ProductCERT · Oct 13, 2026
- SSA-794697 SSA-794697: Vulnerabilities in the Additional GNU/Linux Subsystem of the SIMATIC S7-1500 TM MFP Before V1.1 Siemens ProductCERT · Oct 13, 2026
- RHSA-2026:22329 Red Hat Security Advisory: openssh security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:1790 Red Hat Security Advisory: openssh security update Red Hat Security Advisories (RHSA) · Sep 2, 2026
- WID-SEC-2023-3182 OpenSSH: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen BSI CERT-Bund (WID) · Jul 13, 2026
- USN-6560-2 openssh vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-6560-3 openssh vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-6565-1 openssh vulnerabilities Ubuntu Security Notices (USN) · May 29, 2026
- ICSA-25-162-05 Siemens SIMATIC S7-1500 CPU family CISA ICS & IT advisories · May 14, 2026
- SUSE-SU-2025:20009-1 Security update for openssh SUSE / openSUSE Security Updates · Mar 23, 2026
- DSA-5586-1 openssh - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3694-1 openssh - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:0606 Moderate: openssh security update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2024:14113-1 openssh-9.6p1-11.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2393-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0604-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0603-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- NCSC-2025-0187 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Jun 10, 2025
- VDE-2024-073 Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware CERT@VDE · May 22, 2025
- ICSA-25-044-09 Siemens SCALANCE W700 IEEE 802.11ax CISA ICS & IT advisories · May 6, 2025
- SUSE-SU-2024:0596-1 Security update for openssh SUSE / openSUSE Security Updates · May 2, 2025
- NCSC-2025-0061 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Feb 14, 2025
- NCSC-2025-0051 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Feb 11, 2025
- SSA-769027 SSA-769027: Multiple Vulnerabilities fixed in SCALANCE W700 IEEE 802.11ax devices before V3.0.0 Siemens ProductCERT · Feb 11, 2025
- WID-SEC-2024-3140 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 8, 2025
- WID-SEC-2024-0578 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 6, 2025
- WID-SEC-2024-1248 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 21, 2024
- NCSC-2024-0411 Kwetsbaarheden verholpen in Oracle Database producten NCSC-NL (Netherlands) · Oct 17, 2024
- NCSC-2024-0325 Kwetsbaarheden verholpen in Aruba Networks ArubaOS en InstantOS NCSC-NL (Netherlands) · Aug 7, 2024
- WID-SEC-2024-1781 Aruba ArubaOS: Mehrere Schwachstellen ermöglichen Codeausführung und DOS BSI CERT-Bund (WID) · Aug 6, 2024
- WID-SEC-2024-1701 Aruba EdgeConnect: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 23, 2024
- WID-SEC-2024-1082 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 9, 2024
- ICSA-23-166-11 Siemens SIMATIC S7-1500 TM MFP Linux Kernel CISA ICS & IT advisories · Apr 9, 2024
- ALAS2-2024-2507 Moderate: openssh security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 27, 2024
- ALAS2023-2024-570 Moderate: openssh security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Mar 21, 2024
- ELSA-2024-1130 Moderate: openssh security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Mar 6, 2024
- ELSA-2024-12164 Moderate: openssh security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 14, 2024
References
- https://www.openssh.com/txt/release-9.6
- https://www.openwall.com/lists/oss-security/2023/12/18/2
- https://github.com/openssh/openssh-portable/commit/7ef3787c84b6b524501211b11a26c742f829af1a
- DSA-5586 vendor-advisory
- https://vin01.github.io/piptagole/ssh/security/openssh/libssh/remote-code-execution/2023/12/20/openssh-proxycommand-libssh-rce.html
- [debian-lts-announce] 20231226 [SECURITY] [DLA 3694-1] openssh security update mailing-list
- [oss-security] 20231226 CVE-2023-51385, CVE-2023-6004: OpenSSH, libssh: Security weakness in ProxyCommand handling mailing-list
- GLSA-202312-17 vendor-advisory
- https://security.netapp.com/advisory/ntap-20240105-0005/
- https://support.apple.com/kb/HT214084
- 20240313 APPLE-SA-03-07-2024-2 macOS Sonoma 14.4 mailing-list