Description
GNU screen 4.0.3 allows local users to unlock the screen via a CTRL-C sequence at the password prompt. NOTE: multiple third parties report inability to reproduce this issue
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Screen 4.0.3 (OpenBSD) - Local Authentication Bypass EDB-4028 · local · Jun 18, 2008 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20070604 screen 4.0.3 local Authentication Bypass mailing-list
- screen-password-authentication-bypass(34693) vdb-entry
- 20070604 screen 4.0.3 local Authentication Bypass mailing-list
- 20070604 screen 4.0.3 local Authentication Bypass mailing-list
- 20070604 screen 4.0.3 local Authentication Bypass mailing-list