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Category:   Application (Generic)  >   Cisco Headend Digital Broadband Delivery System Vendors:   Cisco
Cisco Headend System Bugs Let Remote Users Conduct HTTP Response Splitting and Denial of Service Attacks
SecurityTracker Alert ID:  1032445
SecurityTracker URL:
CVE Reference:   CVE-2015-0733, CVE-2015-0743, CVE-2015-0744, CVE-2015-0745   (Links to External Site)
Date:  Jun 2 2015
Impact:   Denial of service via network, Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Vendor Confirmed:  Yes  

Description:   Multiple vulnerabilities were reported in Cisco Headend System. A remote user can cause denial of service conditions on the target system. A remote user can conduct HTTP response splitting attacks.

A remote user can send a specially crafted HTTP request header value to download potentially sensitive temporary script files [CVE-2015-0745].

The vendor has assigned bug ID CSCus44909 to this vulnerability.

The HTTP Header Handler does not properly validate user-supplied input A remote user can submit a specially crafted URL to cause the target server to return a split response [CVE-2015-0733]. A remote user can exploit this to spoof content on the target server, attempt to poison any intermediate web caches, or conduct cross-site scripting attacks.

The vendor has assigned bug ID CSCur25580 to this vulnerability.

A remote user can send specially crafted UDP packets to the TFTP and DHCP services to cause the TFTP and DHCP listening ports to go offline for a period of time [CVE-2015-0743].

The vendor has assigned bug ID CSCus04097 to this vulnerability.

A remote user can send a flood of TCP SYN messages to exploit the lack of rate limiting in the TCP listener application and block TCP listening ports and consume excessive CPU and memory resources [CVE-2015-0744].

The vendor has assigned bug IDs CSCus50642, CSCus50662, CSCus50625, CSCus50657, and CSCus68315 to this vulnerability.

Impact:   A remote user can cause denial of service conditions.

A remote user can create a URL that, when loaded by the target user, will cause arbitrary content to be displayed.

A remote user may be able to poison any intermediate web caches with arbitrary content.

Solution:   No solution was available at the time of this entry.

The vendor's advisories are available at:

Vendor URL: (Links to External Site)
Cause:   Input validation error, Resource error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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