Web Servers : CERN httpd Access Control Bypass Vulnerability

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Test ID: 1.3.6.1.4.1.25623.1.0.17230

Category: Web Servers

Title: CERN httpd Access Control Bypass Vulnerability - Active Check

Summary: CERN httpd is prone to an access control bypass; vulnerability.

Description: Summary:
CERN httpd is prone to an access control bypass
vulnerability.

Vulnerability Insight:
It is possible to access protected web pages
by replacing '/' with e.g. '//' or '/./'.

This was a bug in old versions of CERN httpd web server.

Solution:
Update your web server or tighten your filtering rules.

A workaround consisted in rejecting patterns like:

//*

*//*

/./*

*/./*

CVSS Score:
5.0

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

Copyright Copyright (C) 2005 Michel Arboi

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Test ID:	1.3.6.1.4.1.25623.1.0.17230
Category:	Web Servers
Title:	CERN httpd Access Control Bypass Vulnerability - Active Check
Summary:	CERN httpd is prone to an access control bypass; vulnerability.
Description:	Summary: CERN httpd is prone to an access control bypass vulnerability. Vulnerability Insight: It is possible to access protected web pages by replacing '/' with e.g. '//' or '/./'. This was a bug in old versions of CERN httpd web server. Solution: Update your web server or tighten your filtering rules. A workaround consisted in rejecting patterns like: //* // /./* /./ CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Copyright	Copyright (C) 2005 Michel Arboi