|
Cisco Products HTTP Unicode Encoding Detection Bypass
|
|
Secunia Advisory:
|
SA25285
|
|
|
Release Date:
|
2007-05-15
|
|
Last Update:
|
2007-05-18
|
|
Popularity:
|
7,569 views
|
|
|
Critical:
|
Less critical
|
|
Impact:
|
Security Bypass
|
|
Where:
|
From remote
|
|
Solution Status:
|
Unpatched
|
|
| OS: | Cisco Intrusion Prevention System (IPS) 5.x
|
|
| Software: | Cisco IOS Firewall Feature Set 11.x
Cisco IOS Firewall Feature Set 12.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
| CVE reference: | CVE-2007-2688
|
|
Description:
A vulnerability has been reported in various Cisco products, which can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is caused due to an error in the handling of full-width and half-width unicode encoded HTTP traffic. This can be exploited to bypass content scanning and evade detection by an IPS or firewall.
The vulnerability affects the following products:
* Cisco Intrusion Prevention System (IPS)
* Cisco IOS with Firewall/IPS Feature Set
Solution:
No fix or workaround is currently available.
Provided and/or discovered by:
Fatih Ozavci and Caglar Cakici, GamaSEC
Changelog:
2007-05-18: Added CVE reference.
Original Advisory:
Cisco:
http://www.cisco.com/warp/public/707/cisco-sr-20070514-unicode.shtml
GamaSEC:
http://www.gamasec.net/english/gs07-01.html
Other References:
US-CERT VU#739224:
http://www.kb.cert.org/vuls/id/739224
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
