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Hardcore Disassembler / Reverse Engineer Wanted!
Want to work with IDA and BinDiff?
Want to write PoC's and Exploits?
Your nationality is not important.
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TITLE:
Apache "mod_alias" URL Validation
Canonicalization Vulnerability
SECUNIA ADVISORY ID:
SA21490
VERIFY ADVISORY:
http://secunia.c
om/advisories/21490/
CRITICAL:
Less critical
IMPACT:
Security Bypass, Exposure of sensitive information
WHERE:
From remote
SOFTWARE:
Apache 2.2.x
http://secunia.com/p
roduct/9633/
Apache 2.0.x
http://secunia.com/pro
duct/73/
DESCRIPTION:
Susam Pal has discovered a vulnerability in Apache, which
can be
exploited by malicious people to bypass certain security
restrictions
and disclose potentially sensitive information.
The vulnerability is caused due to an canonicalization error
in the
"mod_alias" module in the handling of
case-sensitive alias directive
arguments on file systems supporting case-insensitive
directory
names. This can e.g. be exploited to disclose the source
code of
applications placed in the "cgi-bin" directory
on certain non-default
configurations where the ScriptAlias directive references a
directory
inside the document root by accessing an URL with a capital
directory
name (e.g. "CGI-BIN").
Example of a vulnerable configuration:
DocumentRoot "[path]/docroot/"
ScriptAlias /cgi-bin/ "/[path]/docroot/cgi-bin"
NOTE: This only affects the Microsoft Windows platform.
The vulnerability has been confirmed in versions 2.0.59 and
2.2.3,
and has also been reported in version 2.2.2. Other versions
may also
be affected.
SOLUTION:
Edit the configuration to ensure that alias directives (e.g.
ScriptAlias) references directories outside of the document
root.
PROVIDED AND/OR DISCOVERED BY:
Susam Pal, Infosys Technologies Ltd.
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About:
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latest
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http://s
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