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AlienVault OTX General

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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

openssh-portable

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.

CVE-2023-51385 is a command injection vulnerability identified in OpenSSH versions before 9.6. The root cause lies in the handling of user names or host names that contain shell metacharacters (e.g., semicolons, backticks) when these names are referenced by expansion tokens in certain operational contexts. Specifically, if an attacker controls a user or host name—such as through a malicious Git repository submodule—they can inject arbitrary OS commands that the OpenSSH process will execute. This vulnerability is categorized under CWE-78 (Improper Neutralization of Special Elements used in an OS Command). The vulnerability can be exploited remotely without requiring authentication or user interaction, as the attack vector involves the processing of names during SSH operations. The CVSS v3.1 base score is 6.5 (medium severity), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and partial impact on confidentiality and integrity, but no impact on availability. No public exploits have been reported yet, but the vulnerability poses a significant risk especially in environments where OpenSSH is used to interact with untrusted or third-party Git repositories. The lack of a patch link suggests that remediation involves upgrading to OpenSSH 9.6 or later, which addresses this issue by properly sanitizing or restricting shell metacharacters in user and host names during expansion token processing.

Detailed information about CVE-2023-51385: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2023-51385: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2023-51385: n/a

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