Usermin '' Base-64 String Metacharacter Handling Session Spoofing

high Nessus Plugin ID 11280


The remote host has an application that is affected by a Session ID spoofing vulnerability.


The remote server is running a version of Usermin which is vulnerable to Session ID spoofing. An attacker may use this flaw to log in as the 'root' user, and gain full control of the remote host.


Upgrade to Usermin 1.000 or later.

Plugin Details

Severity: High

ID: 11280

File Name: usermin_session_id.nasl

Version: 1.21

Type: remote

Family: CGI abuses

Published: 2/28/2003

Updated: 1/19/2021

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: cpe:/a:webmin:usermin, cpe:/a:usermin:usermin

Required KB Items: www/usermin

Excluded KB Items: global_settings/supplied_logins_only

Exploit Ease: No exploit is required

Exploited by Nessus: true

Patch Publication Date: 2/20/2003

Vulnerability Publication Date: 2/24/2003

Reference Information

CVE: CVE-2003-0101

BID: 6915