CVE-2000-1221 Auth bypass in n/a
Remote attackers can bypass lpd access controls by manipulating DNS reverse resolution to spoof the local hostname, allowing unauthorized print job submission.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2000-1221?
CVE-2000-1221 is a critical authentication bypass vulnerability in Debian Debian Linux, published on 21 Apr 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reverse-resolved hostname of the local machine to the hostname of the print server as returned by gethostname, which allows remote attackers to bypass intended access controls by modifying the DNS for the attacking IP.
Which versions are affected by CVE-2000-1221?
It affects 3 products.
Products include Debian Debian Linux, Redhat Linux, Sgi Irix.
How do I fix CVE-2000-1221?
Apply the vendor's patch.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2000-1221 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2000-1221 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2000-1221, GHSA-7g6p-865f-j3r5.