cve/2013/CVE-2013-4548.md

CVE-2013-4548

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.

POC

Reference

• https://hackerone.com/reports/500

Github

• https://github.com/bigb0x/CVE-2024-6387
• https://github.com/bigb0x/OpenSSH-Scanner
• https://github.com/ryanalieh/openSSH-scanner