Cisco Security Advisory
Click Icon to Copy Verbose Score
AV:N/AC:L/Au:N/C:N/I:N/A:P/E:F/RL:U/RC:C
-
A vulnerability in the TCP module of the Cisco Videoscape Policy Resource Manager (PRM) product could allow an unauthenticated, remote attacker to disable TCP ports and cause an increase in CPU and memory usage.
The vulnerability is due to a lack of rate limiting in the TCP listening application. An attacker could exploit this vulnerability using a TCP SYN flood or denial of service (DoS) traffic stream. An exploit could allow the attacker to block TCP listening ports and exhaust system resources such as CPU and memory.
Cisco has confirmed the vulnerability; however, software updates are not available.
Affected devices that are deployed in internal networks are at lower risk of exploitation because attackers may require access to internal networks to send malicious network traffic.
In the event of an exploit, attackers would not be able to recover any confidential information or take control of a device, so the overall impact to the device is low.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
-
Cisco has released bug IDs CSCuu35104 and CSCuu35128 for registered users, which contain additional details and an up-to-date list of affected product versions.
-
Administrators are advised to apply the appropriate updates when available.
Administrators can help protect affected systems from external attacks by using a solid firewall strategy.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
-
Software updates are not available.
-
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
-
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
-
Show LessVersion Description Section Status Date 1.0 Initial Release NA Final 2015-Jul-20
-
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A stand-alone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy, and may lack important information or contain factual errors. The information in this document is intended for end-users of Cisco products.