25837 : Snort HTTP Inspect Pre-Processor Uricontent Bypass
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
15	2754	over 5 years ago	over 2 years ago	1 times	90%

Timeline

Discovery Date	Disclosure Date	Exploit Publish Date
2006-05-17	2006-05-31	2006-05-31

Time to Exploit
14 days

Keywords

Intrusion Detection System

Description

Snort contains a flaw that may allow a remote attacker to bypass IDS detection. The issue is triggered by adding a carriage return to the end of a URL, directly before the HTTP protocol declaration. It is possible that the flaw may allow bypass detection of "uricontent" rules resulting in a loss of integrity.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Third-Party Solution
Exploit: Exploit Public
Disclosure: OSVDB Verified, Vendor Verified
OSVDB: Security Software

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Demarc Threat Research Team has released an unofficial patch to address this vulnerability.

Products

Sourcefire, Inc.	Snort	2.4.0
		2.4.1
		2.4.2
		2.4.3
		2.4.4

References

Security Tracker: 1016191
Bugtraq ID: 18200
CVE ID: 2006-2769 (see also: NVD)
Secunia Advisory ID: 20413 20766
SCIP VulDB ID: 2276
VUPEN Advisory: ADV-2006-2119
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2006-05/0706.html
http://archives.neohapsis.com/archives/dailydave/2006-q2/0187.html
http://archives.neohapsis.com/archives/dailydave/2006-q2/0188.html
http://marc.theaimsgroup.com/?l=snort-devel&m=114909074311462&w=2
Other Advisory URL: http://lists.suse.com/archive/suse-security-announce/2006-Jun/0008.html
http://www.demarc.com/support/downloads/patch_20060531
Vendor URL: http://www.snort.org/
Vendor Specific News/Changelog Entry: http://www.snort.org/pub-bin/snortnews.cgi#431
Keyword: IDS Intrusion Detection System

Tools & Filters

	27448

Manual Testing Notes

Credit

Blake Hartstein - bhartsteindemarc.com - Demarc Threat Research Team

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2006-06-02 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

None found at this time

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