29036 : Cisco IPS Fragmented IP Packet Sequence Detection Bypass
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
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Timeline

Disclosure Date
2006-09-20

Keywords

CSCse17206, CSCsf12379

Description

Cisco IPS contains a flaw that may allow a malicious user to bypass its protection. The issue is triggered when a specially crafted sequence of fragmented IP packets is passed through the device, which allows malicious traffic to evade inspection. It is possible that the flaw may allow unauthorized network access resulting in a loss of integrity.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Solution

Upgrade to version 5.0(6p2), 5.1(3) or higher, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Cisco Systems, Inc.	IPS	5.0(6p1)
		5.1(1)

References

Security Tracker: 1016891
CVE ID: 2006-4911 (see also: NVD)
Bugtraq ID: 20127
Secunia Advisory ID: 22022
SCIP VulDB ID: 2560
ISS X-Force ID: 29058
CERT VU: 658884
VUPEN Advisory: ADV-2006-3721
Keyword: CSCse17206,CSCsf12379
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2006-09/0323.html
Vendor URL: http://www.cisco.com
Vendor Specific Advisory URL: http://www.cisco.com/warp/public/707/cisco-sa-20060920-ips.shtml

Credit

Pratap Ramamurthy -
Shai Rubin -

CVSSv2 Score

CVSSv2 Base Score = 7.5
Source: nvd.nist.gov | Generated: 2006-09-21 | Disagree?

Blogs

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