CVEvulnerability

CVE-2000-1221

10.0 HIGH Published 2000-01-08 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2000-01-08
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C

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.

Affected configurations

• sgi irix 6.5 • sgi irix 6.5.1 • sgi irix 6.5.2 • sgi irix 6.5.3 • sgi irix 6.5.4 • sgi irix 6.5.5 • sgi irix 6.5.6 • sgi irix 6.5.7 • sgi irix 6.5.8 • sgi irix 6.5.9 • sgi irix 6.5.10 • sgi irix 6.5.11 • sgi irix 6.5.12 • sgi irix 6.5.13 • sgi irix 6.5.14f • sgi irix 6.5.14m • sgi irix 6.5.15f • sgi irix 6.5.15m • sgi irix 6.5.16f • sgi irix 6.5.16m • sgi irix 6.5.17f • sgi irix 6.5.17m • sgi irix 6.5.18f • sgi irix 6.5.18m • debian debian linux 2.1 • redhat linux 4.1 • redhat linux 4.2 • redhat linux 5.0 • redhat linux 5.2 • redhat linux 6.0 • redhat linux 6.1

Related

Referenced by CWE · observed example (1)

  • CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action weakness

References