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CVE-2003-0101: Usermin: Privilege escalation

CVE-2003-0101 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Usermin, along with 1 other product in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

miniserv.pl in (1) Webmin before 1.070 and (2) Usermin before 1.000 does not properly handle metacharacters such as line feeds and carriage returns (CRLF) in Base-64 encoded strings during Basic authentication, which allows remote attackers to spoof a session ID and gain root privileges.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access vector: Network. Exploitable remotely over the network.
  • Access complexity: Low. No special conditions are required.
  • Authentication: None. No authentication is needed.
  • Confidentiality impact: Complete. Total information disclosure.
  • Integrity impact: Complete. Total loss of integrity.
  • Availability impact: Complete. Total shutdown of the component.

Affected products

  • Usermin: 0.4; 0.5; 0.6; 0.7; 0.8; 0.9; 0.91; 0.92; 0.93; 0.94; 0.95; 0.96
  • Webmin: 1.0.50; 1.0.60
  • Engardelinux Guardian Digital Webtool: 1.2

References