Home/CVE/The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reve
CVE

CVE-2000-1221

The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reve

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.

HIGH · CVSS 10 EPSS 0.10859
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  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 6% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
▤

Affected Products & Versions

3
sgi irixall versions
debian linuxall versions
redhat linuxall versions
⚠

Public Exploits & PoCs

1
remoteRedHat 6.1 / IRIX 6.5.18 - 'lpd' Command Executionverified
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productcriticalLinux Reverse Shell Indicator
producthighCommunication To LocaltoNet Tunneling Service Initiated - Linux
producthighPotentially Suspicious Malware Callback Communication - Linux
producthighLinux Crypto Mining Pool Connections
producthighCommunication To Ngrok Tunneling Service - Linux
producthighLinux Crypto Mining Indicators
▣

Scoring & Timeline

10
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Published to NVD08 Jan 2000 · 05:00 AM
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
ftp://patches.sgi.com/support/free/security/advisories/20021104-01-PPatch
http://rhn.redhat.com/errata/RHSA-2000-002.html
http://www.atstake.com/research/advisories/2000/lpd_advisory.txt
http://www.debian.org/security/2000/20000109Patch
http://www.kb.cert.org/vuls/id/30308US Government Resource
http://www.l0pht.com/advisories/lpd_advisory
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