CVE-2023-51385 json
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 refer…
published 2023-12-18 2 y ago modified 2026-10-15 25 d ago also EUVD-2023-56106 , JLSEC-2026-70
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 19.8%
- EPSS 19.8% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- julia OpenSSH_jll 9.9.1+0
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1
- openssh Debian 12 1:9.2p1-2+deb12u2
- openssh Debian 14, Debian 13 1:9.6p1-1
debian advisories DEBIAN-CVE-2023-51385
- openssh Ubuntu 20.04 LTS 1:8.2p1-4ubuntu0.11
- openssh Ubuntu 22.04 LTS 1:8.9p1-3ubuntu0.6
- openssh Ubuntu 24.04 LTS 1:9.6p1-3ubuntu1
- openssh Ubuntu Pro 16.04 LTS 1:7.2p2-4ubuntu2.10+esm6
- openssh Ubuntu Pro FIPS-updates 16.04 LTS 1:7.2p2-4ubuntu2.fips.2.10.6
- openssh Ubuntu Pro 18.04 LTS 1:7.6p1-4ubuntu0.7+esm3
- openssh Ubuntu Pro FIPS-updates 18.04 LTS 1:7.9p1-10~ubuntu18.04.fips.0.9
- openssh Ubuntu Pro FIPS-updates 20.04 LTS 1:8.2p1-4ubuntu0.fips.0.11
ubuntu advisories UBUNTU-CVE-2023-51385
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- openssh RHEL 9 8.7p1-34.el9_3.3
- openssh-keycat RHEL 9 8.7p1-34.el9_3.3
- openssh-server RHEL 9 8.7p1-34.el9_3.3
- openssh-askpass RHEL 9 8.7p1-34.el9_3.3
- openssh-clients RHEL 9 8.7p1-34.el9_3.3
- pam_ssh_agent_auth RHEL 9 0.10.4-5.34.el9_3.3
- openssh RHEL 8 8.0p1-19.el8_9.2
- openssh-cavs RHEL 8 8.0p1-19.el8_9.2
red hat advisories RHSA-2026:22329RHSA-2026:1790RHSA-2024:1130RHSA-2024:0429RHSA-2024:0455RHSA-2024:0606
- openssh Linux Micro 6.0 9.6p1-2.1
- openssh SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 9.6p1-150600.6.6.1
- openssh-askpass-gnome SLE Module for Desktop Applications 15 SP6, openSUSE Leap 15.6 9.6p1-150600.6.6.1
- openssh SLES for SAP 12 SP5, SLES 12 SP5 7.2p2-81.12.1
- openssh-testuser SLE Software Development Kit 12 SP5 0-81.12.1
- openssh-askpass-gnome SLES for SAP 12 SP5, SLES 12 SP5 7.2p2-81.12.1
- openssh SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES 15 SP4-LTSS +16 more 8.4p1-150300.3.30.1
- openssh-askpass-gnome SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES 15 SP4-LTSS +7 more 8.4p1-150300.3.30.1
suse advisories SUSE-SU-2025:20009-1SUSE-SU-2024:2393-1SUSE-SU-2024:0604-1SUSE-SU-2024:0603-1SUSE-SU-2024:0596-1
- openssh openSUSE Tumbleweed 9.6p1-11.1
opensuse advisories openSUSE-SU-2024:14113-1
- openssh AlmaLinux 9 8.7p1-34.el9_3.3
- openssh-keycat AlmaLinux 9 8.7p1-34.el9_3.3
- openssh-server AlmaLinux 9 8.7p1-34.el9_3.3
- openssh-askpass AlmaLinux 9 8.7p1-34.el9_3.3
- openssh-clients AlmaLinux 9 8.7p1-34.el9_3.3
- pam_ssh_agent_auth AlmaLinux 9 0.10.4-5.34.el9_3.3
- openssh AlmaLinux 8 8.0p1-19.el8_9.2
- openssh-cavs AlmaLinux 8 8.0p1-19.el8_9.2
almalinux advisories ALSA-2024:1130ALSA-2024:0606
- openssh Rocky Linux 8 8.0p1-19.el8_9.2
rocky linux advisories RLSA-2024:0606
- openssh Alpine 3.16 9.0_p1-r5
- openssh Alpine 3.17 9.1_p1-r5
- openssh Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 9.6_p1-r0
alpine advisories ALPINE-CVE-2023-51385
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- openssh CBL-Mariner 2.0 8.9p1-3
- openssh Azure Linux 3.0 9.7p1-1
azure linux advisories AZL-32203AZL-35082
Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2023-51385 updated cvss 6.5
openssh: potential command injection via shell metacharacters
-
Red Hat Enterprise Linux 6 openssh, openssh-ldap, openssh-server, openssh-askpass, openssh-clients, pam_ssh_agent_auth Red Hat Enterprise Linux 7 openssh, openssh-cavs, openssh-ldap, openssh-keycat, openssh-server, openssh-askpass, +3 moreaffected: workaround, no fix planned “Out of support scope”
-
Red Hat Enterprise Linux AppStream (v. 8) openssh-askpass 8.0p1-19.el8_9.2fixed: vendor fix RHSA-2024:0606
-
Red Hat Enterprise Linux AppStream (v. 9) openssh-askpass 8.7p1-34.el9_3.3, pam_ssh_agent_auth 0.10.4-5.34.el9_3.3fixed: vendor fix RHSA-2024:1130
-
Red Hat Enterprise Linux AppStream E4S (v.9.0) openssh-askpass 8.7p1-13.el9_0.1, pam_ssh_agent_auth 0.10.4-4.13.el9_0.4fixed: vendor fix RHSA-2026:1790
-
Red Hat Enterprise Linux AppStream EUS (v.8.6) openssh-askpass 8.0p1-15.el8_6.3fixed: vendor fix RHSA-2024:0429
-
Red Hat Enterprise Linux AppStream EUS (v.8.8) openssh-askpass 8.0p1-19.el8_8.2fixed: vendor fix RHSA-2024:0594
-
Red Hat Enterprise Linux AppStream EUS (v.9.2) openssh-askpass 8.7p1-30.el9_2.3, pam_ssh_agent_auth 0.10.4-5.30.el9_2.3fixed: vendor fix RHSA-2024:0455
-
Red Hat Enterprise Linux BaseOS (v. 8) openssh 8.0p1-19.el8_9.2, openssh-cavs 8.0p1-19.el8_9.2, openssh-ldap 8.0p1-19.el8_9.2, openssh-keycat 8.0p1-19.el8_9.2, openssh-server 8.0p1-19.el8_9.2, openssh-clients 8.0p1-19.el8_9.2, +1 morefixed: vendor fix RHSA-2024:0606
show 9 moreshow fewer
-
Red Hat Enterprise Linux BaseOS (v. 9) openssh 8.7p1-34.el9_3.3, openssh-keycat 8.7p1-34.el9_3.3, openssh-server 8.7p1-34.el9_3.3, openssh-clients 8.7p1-34.el9_3.3fixed: vendor fix RHSA-2024:1130
-
Red Hat Enterprise Linux BaseOS AUS (v.8.4) openssh 8.0p1-7.el8_4.2, openssh-clients 8.0p1-7.el8_4.2fixed: vendor fix RHSA-2026:22329
-
Red Hat Enterprise Linux BaseOS E4S (v.9.0) openssh 8.7p1-13.el9_0.1, openssh-keycat 8.7p1-13.el9_0.1, openssh-server 8.7p1-13.el9_0.1, openssh-clients 8.7p1-13.el9_0.1fixed: vendor fix RHSA-2026:1790
-
Red Hat Enterprise Linux BaseOS EUS (v.8.6) openssh 8.0p1-15.el8_6.3, openssh-cavs 8.0p1-15.el8_6.3, openssh-ldap 8.0p1-15.el8_6.3, openssh-keycat 8.0p1-15.el8_6.3, openssh-server 8.0p1-15.el8_6.3, openssh-clients 8.0p1-15.el8_6.3, +1 morefixed: vendor fix RHSA-2024:0429
-
Red Hat Enterprise Linux BaseOS EUS (v.8.8) openssh 8.0p1-19.el8_8.2, openssh-cavs 8.0p1-19.el8_8.2, openssh-ldap 8.0p1-19.el8_8.2, openssh-keycat 8.0p1-19.el8_8.2, openssh-server 8.0p1-19.el8_8.2, openssh-clients 8.0p1-19.el8_8.2, +1 morefixed: vendor fix RHSA-2024:0594
-
Red Hat Enterprise Linux BaseOS EUS (v.9.2) openssh 8.7p1-30.el9_2.3, openssh-keycat 8.7p1-30.el9_2.3, openssh-server 8.7p1-30.el9_2.3, openssh-clients 8.7p1-30.el9_2.3fixed: vendor fix RHSA-2024:0455
-
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) openssh 8.0p1-7.el8_4.2, openssh-clients 8.0p1-7.el8_4.2fixed: vendor fix RHSA-2026:22329
-
Red Hat RHODF 4.15 for RHEL 9 odf4/cephcsi-rhel9 v4.15.0-37, odf4/odf-cli-rhel9 v4.15.0-22, odf4/mcg-core-rhel9 v4.15.0-68, odf4/odf-console-rhel9 v4.15.0-57, odf4/mcg-rhel9-operator v4.15.0-39, odf4/ocs-rhel9-operator v4.15.0-79, +20 morefixed: vendor fix RHSA-2024:1383
-
Red Hat Enterprise Linux AppStream AUS (v.8.4) openssh-askpass 8.0p1-7.el8_4.2 Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) openssh-askpass 8.0p1-7.el8_4.2 Red Hat Enterprise Linux BaseOS AUS (v.8.4) openssh-cavs 8.0p1-7.el8_4.2, openssh-ldap 8.0p1-7.el8_4.2, openssh-keycat 8.0p1-7.el8_4.2, openssh-server 8.0p1-7.el8_4.2, pam_ssh_agent_auth 0.10.3-7.7.el8_4.3 Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) openssh-cavs 8.0p1-7.el8_4.2, openssh-ldap 8.0p1-7.el8_4.2, openssh-keycat 8.0p1-7.el8_4.2, openssh-server 8.0p1-7.el8_4.2, pam_ssh_agent_auth 0.10.3-7.7.el8_4.3not affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
cisa ICSA-25-162-05 updated cvss 6.5
Siemens SIMATIC S7-1500 CPU family
-
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.5affected: mitigation, no fix available
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
cisa ICSA-25-044-09 updated cvss 6.5
Siemens SCALANCE W700 IEEE 802.11ax
-
Siemens SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0) <V3.0.0 Siemens SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) <V3.0.0 Siemens SCALANCE WAM763-1 (ME) (6GK5763-1AL00-7DC0) <V3.0.0 Siemens SCALANCE WAM763-1 (US) (6GK5763-1AL00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) <V3.0.0 Siemens SCALANCE WAM766-1 (ME) (6GK5766-1GE00-7DC0) <V3.0.0affected: fixed in V3.0.0 support.industry.siemens.com
+13 more productsfewer
Siemens SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (ME) (6GK5766-1GE00-7TC0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) <V3.0.0 Siemens SCALANCE WUB762-1 (6GK5762-1AJ00-1AA0) <V3.0.0 Siemens SCALANCE WUB762-1 iFeatures (6GK5762-1AJ00-2AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3AB0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3DB0) <V3.0.0 Siemens SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) <V3.0.0 Siemens SCALANCE WUM766-1 (ME) (6GK5766-1GE00-3DC0) <V3.0.0 Siemens SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) <V3.0.0
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
cisa ICSA-23-166-11 updated cvss 6.5
Siemens SIMATIC S7-1500 TM MFP Linux Kernel
-
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem <V1.1affected: fixed in V1.1, workaround support.industry.siemens.com
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 14 mo ago
Exploit prediction
19.75% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| julia | OpenSSH_jll | <9.9.1+0 |
9.9.1+0 |
Affected products
- Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
- Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
- Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
github.com
/openssh/openssh-portable/commit/7ef3787c84b6b524501211b11a26c742f829af1a
patch, web
-
debian.org
/security/2023/dsa-5586
vendor-advisory, third-party-advisory, web
-
security.gentoo.org
/glsa/202312-17
vendor-advisory, third-party-advisory, web
-
openssh.com
/txt/release-9.6
release-notes, web
-
openwall.com
/lists/oss-security/2023/12/18/2
mailing-list, release-notes, web
-
vin01.github.io
/piptagole/ssh/security/openssh/libssh/remote-code-execution/2023/12/20/openssh-proxycommand-libssh-rce.html
third-party-advisory, web
-
lists.debian.org
/debian-lts-announce/2023/12/msg00017.html
mailing-list, third-party-advisory, web
-
openwall.com
/lists/oss-security/2023/12/26/4
mailing-list, third-party-advisory, web
-
security.netapp.com
/advisory/ntap-20240105-0005/
web
-
support.apple.com
/kb/HT214084
web
-
seclists.org
/fulldisclosure/2024/Mar/21
mailing-list, web
-
openwall.com
/lists/oss-security/2025/10/07/1
web
-
openwall.com
/lists/oss-security/2025/10/12/1
web
-
cert-portal.siemens.com
/productcert/html/ssa-794697.html
web
-
cert-portal.siemens.com
/productcert/html/ssa-769027.html
web
-
cert-portal.siemens.com
/productcert/html/ssa-082556.html
web
Sources
- CVE List CVE-2023-51385
- NVD CVE-2023-51385
- OSV JLSEC-2026-70
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.