cisco-sa-20190501-asa-vpn-dos: Cisco Adaptive Security Appliance Software VPN Denial of Service Vulnerability
First published: Wed May 01 2019(Updated: )
A vulnerability in the remote access VPN session manager of Cisco Adaptive Security Appliance (ASA) Software could allow a unauthenticated, remote attacker to cause a denial of service (DoS) condition on the remote access VPN services. The vulnerability is due to an issue with the remote access VPN session manager. An attacker could exploit this vulnerability by requesting an excessive number of remote access VPN sessions. An exploit could allow the attacker to cause a DoS condition. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-vpn-dos
Credit: This vulnerability was found during the resolution a Cisco TAC support case
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco ASA Software | =9.10<9.10.1.17>=9.7=9.8<=9.9<9.9.2.50=9.6<9.6.4.25=9.5<9.6.4.25=9.4<9.4.4.34 | 9.10.1.17 9.9.2.50 9.6.4.25 9.6.4.25 9.4.4.34 |
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Reference Links
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- version/cisco asa software/9.4