CVE-2007-2688
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 3.00% probability · 87th percentile
- CISA KEV
- Not listed
- Affected
- cisco/ips sensor software · cisco/ios
- Source
- cve@mitre.org
References
- http://secunia.com/advisories/25285Vendor Advisory
- http://www.cisco.com/en/US/products/products_security_response09186a008083f82e.html
- http://www.gamasec.net/english/gs07-01.html
- http://www.kb.cert.org/vuls/id/739224US Government Resource
- http://www.osvdb.org/35336
- http://www.securityfocus.com/archive/1/468633/100/0/threaded
- http://www.securityfocus.com/bid/23980
- http://www.securitytracker.com/id?1018053
- http://www.securitytracker.com/id?1018054
- http://www.vupen.com/english/advisories/2007/1803
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34277
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5465
- http://secunia.com/advisories/25285Vendor Advisory
- http://www.cisco.com/en/US/products/products_security_response09186a008083f82e.html
- http://www.gamasec.net/english/gs07-01.html
- http://www.kb.cert.org/vuls/id/739224US Government Resource
- http://www.osvdb.org/35336
- http://www.securityfocus.com/archive/1/468633/100/0/threaded
- http://www.securityfocus.com/bid/23980
- http://www.securitytracker.com/id?1018053
- http://www.securitytracker.com/id?1018054
- http://www.vupen.com/english/advisories/2007/1803
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34277
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5465
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.