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Cisco Adaptive Security Appliance XML Parser Denial of Service Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
A vulnerability in XML parser code of Cisco Adaptive Security Appliance Software could allow an authenticated, remote attacker to cause system instability or a reload of the affected system. The vulnerability is due to insufficient hardening of the XML parser configuration. An attacker could exploit this vulnerability in multiple ways by utilizing a malicious file. An attacker with administrative privileges could exploit this by uploading a malicious XML file on the system and trigger the XML code to parse the malicious file. Additionally, an attacker with Clienteles SSL VPN access could exploit this vulnerability by sending a crafted XML file. An exploit would allow the attacker to crash the XML parser process, which could cause system instability, memory exhaustion, and in some cases lead to a reload of the affected system. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
See the referenced vendor advisory for a solution.