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Last updated: 5/29/2016 2:39:59 PM

CVE Publication rate: 20.13

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Vulnerability Workload Index: 12.46
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National Cyber Awareness System

Vulnerability Summary for CVE-2007-2688

Original release date: 05/15/2007
Last revised: 03/07/2011


The Cisco Intrusion Prevention System (IPS) and IOS with Firewall/IPS Feature Set do not properly handle certain full-width and half-width Unicode character encodings, which might allow remote attackers to evade detection of HTTP traffic.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.8 HIGH
Impact Subscore: 6.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: OVAL
Name: oval:org.mitre.oval:def:5465
External Source: CISCO
Name: 20070514 HTTP Full-Width and Half-Width Unicode Encoding Evasion
External Source: XF
Name: cisco-scanengine-unicode-security-bypass(34277)
External Source: VUPEN
Name: ADV-2007-1803
US-CERT Vulnerability Note: CERT-VN
Name: VU#739224
External Source: SECTRACK
Name: 1018054
External Source: SECTRACK
Name: 1018053
External Source: BUGTRAQ
Name: 20070515 GS07-01 Full-Width and Half-Width Unicode Encoding IDS/IPS/WAF Bypass Vulnerability
External Source: MISC
Name: http://www.gamasec.net/english/gs07-01.html
External Source: BID
Name: 23980

References to Check Content

Identifier: oval:org.mitre.oval:def:5465
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)