28590 : Cisco IOS GRE Packet Decapsulation
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
2	528	over 5 years ago	over 3 years ago	0 times	90%

Timeline

Exploit Publish Date	Disclosure Date
2005-07-07	2006-09-06

Keywords

CSCuk27655, CSCea22552, CSCei62762

Description

IOS contains a flaw that may allow a malicious user to bypass access restrictions. The issue is triggered when specially-crafted GRE packets are decapsulated by a GRE endpoint without verifying an offset field, and may reuse unrelated packet data from memory. It is possible that the flaw may allow an attacker to inject source routing information which may bypass access restrictions 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

Currently, there are no known upgrades, patches, or workarounds available to correct this issue.

Products

Cisco Systems, Inc.	IOS	12.0
		12.1
		12.2

References

Security Tracker: 1016799
CVE ID: 2006-4650 (see also: NVD)
Secunia Advisory ID: 21783
SCIP VulDB ID: 2513
ISS X-Force ID: 28786
VUPEN Advisory: ADV-2006-3502
Keyword: CSCuk27655,CSCea22552,CSCei62762
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2006-09/0065.html
Vendor Specific Advisory URL: http://www.cisco.com/warp/public/707/cisco-sr-20060906-gre.shtml
Other Advisory URL: http://www.phenoelit.de/stuff/CiscoGRE.txt

Credit

FX - fxphenoelit.de - Phenoelit Group

CVSSv2 Score

CVSSv2 Base Score = 2.6
Source: nvd.nist.gov | Generated: 2006-09-11 | Disagree?

Blogs

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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.

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