#VU52312 Security restrictions bypass in OpenSSH
Published: April 19, 2021
Vulnerability identifier: #VU52312
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
OpenSSH
OpenSSH
Software vendor:
OpenSSH
OpenSSH
Description
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions, when LogVerbose keyword option is enabled with a set of options that activated logging for the low-privileged sandboxed sshd process. A remote user who can exploit the low-privileged process can escape the OpenSSH sendboxing and attack the high-level processes.
Successful exploitation of this vulnerability requires presence of security issue in the low-level process.
Remediation
Install updates from vendor's website.