Webmin and Usermin authentication page error cross-site scripting

webmin-usermin-authpage-xss (9036) The risk level is classified as MediumMedium Risk

Description:

Webmin is vulnerable to cross-site scripting. A remote attacker could create a specially-crafted URL link to the user authentication page containing malicious script, which would cause an error message to be displayed and the script to be executed in the victim's Web browser within the security context of the host, once the link is clicked. An attacker could use this vulnerability to steal the victim's session ID cookies and gain unauthorized access to the victim's account.


Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Webmin (0.970 or later) or Usermin (0.910 or later), available from the Webmin Web site. See References.

For Caldera OpenLinux 3.1 and 3.1.1 (Workstation and Server):
Upgrade to the latest webmin package (0.89-11 or later), as listed in SCO Security Advisory CSSA-2003-002.0. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

  • SCO Security Advisory CSSA-2003-002.0: Webmin Cross-site Scripting and Session ID Spoofing Vulnerabilities.
  • SNS Advisory No.52: Webmin/Usermin Cross-site Scripting Vulnerability.
  • Webmin Web site: Webmin.
  • BID-4694: Webmin / Usermin Login Cross Site Scripting Vulnerability
  • CVE-2002-0756: Cross-site scripting vulnerability in the authentication page for (1) Webmin 0.96 and (2) Usermin 0.90 allows remote attackers to insert script into an error page and possibly steal cookies.
  • OSVDB ID: 9241: Webmin/Usermin Authentication Error Page XSS

Platforms Affected:

  • Gentoo Webmin 0.960
  • Usermin Project Usermin 0.90 and prior

Reported:

May 07, 2002

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