CVE-2024-34713

sshproxy vulnerable to SSH option injection

CVSS 3.5 LOWEPSS 0.4%CWE-77

Vexday Risk Score

8Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 3.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

14 May 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

sshproxy is used on a gateway to transparently proxy a user SSH connection on the gateway to an internal host via SSH. Prior to version 1.6.3, any user authorized to connect to a ssh server using `sshproxy` can inject options to the `ssh` command executed by `sshproxy`. All versions of `sshproxy` are impacted. The problem is patched starting in version 1.6.3. The only workaround is to use the `force_command` option in `sshproxy.yaml`, but it's rarely relevant.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Affected products

cea-hpc · sshproxy

References

https://github.com/cea-hpc/sshproxy/commit/f7eabd05d5f0f951e160293692327cad9a7d9580 https://github.com/cea-hpc/sshproxy/security/advisories/GHSA-jmqp-37m5-49wh