cisco-sa-rcm-tcp-dos-2Wh8XjAQ: Cisco Redundancy Configuration Manager for Cisco StarOS Software TCP Denial of Service Vulnerability
First published: Wed Feb 16 2022(Updated: )
A vulnerability in the checkpoint manager implementation of Cisco Redundancy Configuration Manager (RCM) for Cisco StarOS Software could allow an unauthenticated, remote attacker to cause the checkpoint manager process to restart upon receipt of malformed TCP data. This vulnerability is due to improper input validation of an ingress TCP packet. An attacker could exploit this vulnerability by sending crafted TCP data to the affected application. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to the checkpoint manager process restarting. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rcm-tcp-dos-2Wh8XjAQ
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco StarOS Major | >=.24<21<=21.24<21.24.0 | 21.24.0 |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-rcm-tcp-dos-2Wh8XjAQ?
The severity of cisco-sa-rcm-tcp-dos-2Wh8XjAQ is rated high due to its potential to impact service availability.
How do I fix cisco-sa-rcm-tcp-dos-2Wh8XjAQ?
To remediate cisco-sa-rcm-tcp-dos-2Wh8XjAQ, upgrade to versions of Cisco StarOS Software that are not affected, specifically version 21.24.0 or higher.
What are the implications of cisco-sa-rcm-tcp-dos-2Wh8XjAQ?
The implication of cisco-sa-rcm-tcp-dos-2Wh8XjAQ is that an attacker could send malformed TCP data, causing a denial of service by restarting the checkpoint manager process.
Who is affected by cisco-sa-rcm-tcp-dos-2Wh8XjAQ?
Organizations using Cisco Redundancy Configuration Manager (RCM) for Cisco StarOS Software versions prior to 21.24.0 are affected by cisco-sa-rcm-tcp-dos-2Wh8XjAQ.
Is authentication required to exploit cisco-sa-rcm-tcp-dos-2Wh8XjAQ?
No, cisco-sa-rcm-tcp-dos-2Wh8XjAQ can be exploited by unauthenticated remote attackers.
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- vendor/cisco
- canonical/cisco staros major
- version/cisco staros major/.24
- version/cisco staros major/21.24