CVE-2010-1576
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 1.83% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- cisco/content services switch 11500 · cisco/ace 4710
- Source
- psirt@cisco.com
References
- http://osvdb.org/66092
- 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/Exploit
- http://osvdb.org/66092
- 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/Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.