8270 : DansGuardian Hex Encoded Banned Extension Filter Bypass
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
12	2311	almost 9 years ago	over 3 years ago	1 times	90%

Timeline

Disclosure Date
2004-07-29

Time to Exploit
1 days

Description

DansGuardian contains a flaw that may allow a malicious user to bypass banned extensions filter. The issue is triggered when the attacker uses hexadecimal encoded characters in the URI file name to be retrieved. It is possible that the flaw may allow banned files to be viewed.

Classification

Location: Remote / Network Access
Attack Type: Information Disclosure
Impact: Loss of Confidentiality
Exploit: Exploit Public
Disclosure: Vendor Verified
OSVDB: Security Software

Solution

Upgrade to version 2.8.0.1 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Daniel Barron	DansGuardian 2	2.2.4
		2.2.5
		2.2.6
		2.2.7-1
		2.2.7
		2.2.8
		2.2.9-1
		2.2.9
		2.2.10
		2.4.5-1
		2.6.1-5
		2.7.3-1
		2.8.0
		2.8.1

References

Security Tracker: 1010817
Bugtraq ID: 10823
Secunia Advisory ID: 12191
ISS X-Force ID: 16836
CVE ID: 2004-2065 (see also: NVD)
Related OSVDB ID: 8270
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2004-07/0326.html
http://marc.theaimsgroup.com/?l=bugtraq&m=109113126217408&w=2
Vendor Specific Solution URL: http://dansguardian.avgguy.us/downloads/2/Stable/dansguardian-2.8.0.1.source.tar.gz
Vendor URL: http://dansguardian.org/
Vendor Specific News/Changelog Entry: http://dansguardian.org/?page=history

Credit

Rubén Molina - rubenudea.edu.co -

CVSSv2 Score

CVSSv2 Base Score = 7.5
Source: nvd.nist.gov | Generated: 2005-05-25 | Disagree?

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