OpenSSH up to 9.5 Name os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in OpenSSH up to 9.5. The affected element is an unknown function of the component Name Handler. Executing a manipulation can lead to os command injection. This vulnerability is registered as CVE-2023-51385. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in OpenSSH up to 9.5 (Connectivity Software). This vulnerability affects some unknown functionality of the component Name Handler. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 12/18/2023. The advisory is shared for download at openssh.com. This vulnerability was named CVE-2023-51385 since 12/18/2023. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/06/2025). The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability scanner Nessus provides a plugin with the ID 214473 (Debian dla-3694 : openssh-client - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.6 eliminates this vulnerability. The upgrade is hosted for download at openssh.com.

The vulnerability is also documented in the vulnerability database at Tenable (214473). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 214473
Nessus Name: Debian dla-3694 : openssh-client - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenSSH 9.6
Patch: github.com

Timelineinfo

12/18/2023 🔍
12/18/2023 +0 days 🔍
12/18/2023 +0 days 🔍
11/06/2025 +689 days 🔍

Sourcesinfo

Advisory: 7ef3787c84b6b524501211b11a26c742f829af1a
Status: Confirmed

CVE: CVE-2023-51385 (🔍)
GCVE (CVE): GCVE-0-2023-51385
GCVE (VulDB): GCVE-100-248320

Entryinfo

Created: 12/18/2023 22:27
Updated: 11/06/2025 22:21
Changes: 12/18/2023 22:27 (41), 01/12/2024 10:41 (2), 01/12/2024 10:48 (12), 01/22/2025 20:27 (17), 11/06/2025 22:21 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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