Vulnerability CVE-2010-1576


Published: 2010-07-06   Modified: 2012-02-13

Description:
The Cisco Content Services Switch (CSS) 11500 with software before 8.20.4.02 and the Application Control Engine (ACE) 4710 with software before A2(3.0) do not properly handle use of LF, CR, and LFCR as alternatives to the standard CRLF sequence between HTTP headers, which allows remote attackers to bypass intended header insertions or conduct HTTP request smuggling attacks via crafted header data, as demonstrated by LF characters preceding ClientCert-Subject and ClientCert-Subject-CN headers, aka Bug ID CSCta04885.

See advisories in our WLB2 database:
Topic
Author
Date
High
Multiple Cisco CSS / ACE Client Certificate and HTTP Header Manipulation Vulnerabilities
VSR Advisories
08.07.2010

Type:

CWE-20

(Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Cisco -> Ace 4710 
Cisco -> Content services switch 11500 

 References:
http://securitytracker.com/id?1024167
http://securitytracker.com/id?1024168
http://www.securityfocus.com/archive/1/512144/100/0/threaded
http://www.securityfocus.com/bid/41315
http://www.vsecurity.com/resources/advisory/20100702-1/

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