Title: AOLServer Long Authentication String Buffer Overflow Vulnerability
Severity: HIGH
Description:
AOLServer is a freely available, open source web server. It was originally written by AOL, and is currently developed and maintained by AOL and public domain.
A problem with the server may allow remote users to deny service to legitmate users of the web server, and potentially execute arbitrary code. The problem is due to a buffer overflow in the authentication process.
When a remote user attempts to access restricted content on the AOLserver, a request for authentication is sent to the user via a typical htaccess request. The user must then supply a password to communicate further with the server.
However, by supplying a password of 2048 bytes, a buffer overflow occurs, causing the AOLServer to crash. Due to this overflow, it's possible for a remote user to overwrite variables on the stack, and potentially execute arbitrary code. This could allow a remote user to gain local access to the system with the privileges of the AOLServer process. It could additionally lead to a remote user gaining elevated privileges on the system.
Affected Products:
- AOL AOLserver 3.0.0
- AOL AOLserver 3.2.0 UNIX
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