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Abyss Web Server Directory Protection Bypass Vulnerability
Secunia Advisory: SA10386
Release Date: 2003-12-08
Popularity: 7,498 views

Critical:
Moderately critical
Impact: Security Bypass
Where: From remote
Solution Status: Vendor Patch

Software:Abyss Web Server 1.x

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Description:
A vulnerability has been identified in Abyss web server, which can be exploited by malicious people to access certain password protected directories.

It is possible to access password protected directories on a FAT32 file system without supplying a valid password by appending a dot (".") or the URL encoded representation ("%2E") at the end of the requested directory.

Examples:
http://[victim]/[protected_FAT32_directory].
http://[victim]/[protected_FAT32_directory]%2e

The vulnerability affects versions prior to 1.2 for Linux.

Solution:
Update to version 1.2.
http://www.aprelium.com/abyssws/download.php

Provided and/or discovered by:
Luigi Auriemma

Original Advisory:
http://aluigi.altervista.org/adv/abyss-dot-adv.txt


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