[UNIX] DSLogin Authentication Bypass Vulnerability

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DSLogin Authentication Bypass Vulnerability
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SUMMARY

<http://dsportal.uw.hu/index.php?open=downloads&category=2> DSLogin is
"very safe login system with email activation." An authentication
bypassing vulnerabilities has been discovered in DSLogin, allowing remote
attackers to completely bypass the authentication mechanism.

DETAILS

Vulnerable Systems:
* DSLogin version 1.0

DSLogin's variable $log_userid isn't properly sanitized before being used
in SQL query. This can be used to bypass authentication using SQL
injection and make any SQL query by injecting arbitrary SQL code.

Authentication Bypass Example:
URL: http://[host]/dslogin/index.php
Username: ' or 1/*
Password: any


ADDITIONAL INFORMATION

The information has been provided by <mailto:alex@xxxxxxxxx> Aliaksandr
Hartsuyeu.
The original article can be found at:
<http://evuln.com/vulns/100/summary.html>
http://evuln.com/vulns/100/summary.html



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