Abyss Web Server Authentication Bypass Vulnerability

BID:9171

Info

Abyss Web Server Authentication Bypass Vulnerability

Bugtraq ID: 9171
Class: Access Validation Error
CVE:
Remote: Yes
Local: No
Published: Dec 08 2003 12:00AM
Updated: Dec 08 2003 12:00AM
Credit: The disclosure of this issue has been credited to Luigi Auriemma <[email protected]>.
Vulnerable: Aprelium Technologies Abyss Web Server 1.1.6 Beta
Aprelium Technologies Abyss Web Server 1.1.4
Aprelium Technologies Abyss Web Server 1.1.2
Aprelium Technologies Abyss Web Server 1.0.7
Aprelium Technologies Abyss Web Server 1.0.3
Aprelium Technologies Abyss Web Server 1.0
- Microsoft Windows 2000 Professional SP2
 - Microsoft Windows 2000 Professional SP1
 - Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows ME
- Microsoft Windows NT Workstation 4.0 SP6a
 - Microsoft Windows NT Workstation 4.0 SP6
 - Microsoft Windows NT Workstation 4.0 SP5
 - Microsoft Windows NT Workstation 4.0 SP4
 - Microsoft Windows NT Workstation 4.0 SP3
 - Microsoft Windows NT Workstation 4.0 SP2
 - Microsoft Windows NT Workstation 4.0 SP1
 - Microsoft Windows NT Workstation 4.0
 - Microsoft Windows XP Home
Not Vulnerable: Aprelium Technologies Abyss Web Server 1.2

Discussion

Abyss Web Server Authentication Bypass Vulnerability

It has been reported that Abyss Web Server is prone to an authentication bypass vulnerability that may allow an attacker to gain access to server resources. This issue may be carried out by accessing a password protected directory under which the server is running by adding a period as '.' or '%2e' at the end of a URL request. This problem only presents itself when the server is installed on a Linux system running FAT32.

Abyss Web Server versions prior to 1.2 have been reported prone to this issue.

Exploit / POC

Abyss Web Server Authentication Bypass Vulnerability

The following proof of concept examples have been provided:

http://www.example.com/protected_FAT32_dir.
http://www.example.com/protected_FAT32_dir./
http://www.example.com/protected_FAT32_dir%2e

Solution / Fix

Abyss Web Server Authentication Bypass Vulnerability

Solution:
The vendor has released version 1.2 of the server to address this issue:


Aprelium Technologies Abyss Web Server 1.0

Aprelium Technologies Abyss Web Server 1.0.3

Aprelium Technologies Abyss Web Server 1.0.7

Aprelium Technologies Abyss Web Server 1.1.2

Aprelium Technologies Abyss Web Server 1.1.4

Aprelium Technologies Abyss Web Server 1.1.6 Beta

References

Abyss Web Server Authentication Bypass Vulnerability

References:

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report