A vulnerability in the Redis implementation used by the Cisco Policy Suite for Mobile and Cisco Policy Suite Diameter Routing Agent software could allow an unauthenticated, remote attacker to modify key-value pairs for short-lived events stored by the Redis server.
The vulnerability is due to improper authentication when accessing the Redis server. An unauthenticated attacker could exploit this vulnerability by modifying key-value pairs stored within the Redis server database. An exploit could allow the attacker to reduce the efficiency of the Cisco Policy Suite for Mobile and Cisco Policy Suite Diameter Routing Agent software.
Cisco has released software updates that address this vulnerability for Cisco Policy Suite for Mobile.
Currently there is no software release available for Cisco Policy Suite Diameter Routing Agent software. There are no workarounds that address this vulnerability, but a mitigation for Cisco Policy Suite Diameter Routing Agent software exists. See the Workarounds section for more details.
This advisory is available at the following link:
This vulnerability affects the following Cisco products running a vulnerable software version:
- Cisco Policy Suite for Mobile
- Cisco Policy Suite Diameter Routing Agent
For information about affected software releases, consult the Cisco bug IDs at the top of this advisory.
Products Confirmed Not Vulnerable
Cisco has confirmed that this vulnerability does not affect the following products:
- Cisco Policy Suite for BNG
- Cisco Policy Suite for Wi-Fi
Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.
There are no workarounds that address this vulnerability.
A mitigation for Cisco Policy Suite Diameter Routing Agent software exists that reduces the attack surface by blocking access to external facing interfaces. This procedure requires a number of steps to complete. Contact the Cisco Technical Assistance Center (TAC) for details and assistance in implementation.
For information about fixed software releases, consult the Cisco bug IDs at the top of this advisory.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
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.
This vulnerability was found during internal security testing.
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.
Version Description Section Status Date 1.0 Initial public release. — Final 2019-January-09
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