CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 6.0. It may be remotely exploitable. Exploitation may require the attacker to be authenticated.
CVE
CVE-2013-4548
Severity
MEDIUM
CVSS
6
EPSS
2.67%
Original NVD Description
The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.