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5.0

Webmin and Usermin let attackers guess passwords

CVE-2004-0583 · published 22 years ago
Summary

The login lockout feature in Webmin 1.140 and Usermin 1.070 does not handle some input correctly, so an attacker can repeatedly try different usernames and passwords without being blocked. This makes it easier to guess valid accounts. Apply the latest security updates or upgrade to newer versions that fix the lockout handling.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
usermin usermin 1.070
cpe:2.3:a:usermin:usermin:1.070:*:*:*:*:*:*:*
webmin webmin 1.1.40
cpe:2.3:a:webmin:webmin:1.1.40:*:*:*:*:*:*:*
debian debian_linux 3.0
cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
Original advisory text
The account lockout functionality in (1) Webmin 1.140 and (2) Usermin 1.070 does not parse certain character strings, which allows remote attackers to conduct a brute force attack to guess user IDs...
The account lockout functionality in (1) Webmin 1.140 and (2) Usermin 1.070 does not parse certain character strings, which allows remote attackers to conduct a brute force attack to guess user IDs and passwords.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.0 Medium
Exploitation
2% chance of attack within 30 days
Timeline
Published6 Aug 2004
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2004-0583 · NVD
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