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Category:   Device (Embedded Server/Appliance)  >   Cisco Web Security Appliance Vendors:   Cisco
Cisco Web Security Appliance HTTP Request Processing Flaw Lets Remote Users Deny Service
SecurityTracker Alert ID:  1035908
SecurityTracker URL:  http://securitytracker.com/id/1035908
CVE Reference:   CVE-2016-1380   (Links to External Site)
Date:  May 18 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco Web Security Appliance. A remote user can cause denial of service conditions on the target system.

A remote user can send a specially crafted HTTP POST request to trigger an input validation flaw and cause the target proxy process to become unresponsive and the system to reload.

Cisco Web Security Appliance (WSA) is affected on both virtual and hardware appliances.

The vendor has assigned bug ID CSCuo12171 to this vulnerability.

Impact:   A remote user can cause the target proxy process to become unresponsive and the system to reload.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160518-wsa1

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160518-wsa1 (Links to External Site)
Cause:   Input validation error

Message History:   None.


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