Description
Send ICMP Nasty Garbage (sing) on Debian GNU/Linux allows local users to append to arbitrary files and gain privileges via the -L (output log file) option. NOTE: this issue is only a vulnerability in limited environments, since sing is not installed setuid, and the administrator would need to override a non-setuid default during installation.
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
- Send ICMP Nasty Garbage (SING) - Append File Logrotate EDB-4698 · local · Dec 6, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 44157 vdb-entry
- 20071204 Re: sing (debian) vunlerability? mailing-list
- 20071203 sing (debian) vunlerability? mailing-list
- 3412 third-party-advisory
- 26679 vdb-entry
- sing-logfile-privilege-escalation(38822) vdb-entry