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Cisco ASA VPN XML Parser DoS Vulnerability

Information

Severity

Severity

High

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

7.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

3 years ago

Summary

Cisco ASA is prone to a DoS vulnerability in the VPN XML Parser.

Insight

Insight

The vulnerability is due to insufficient hardening of the XML parser configuration. An attacker could exploit this vulnerability by sending a crafted XML message to the affected system. This vulnerability affects Cisco ASA appliances configured for Clientless or AnyConnect SSL VPN and AnyConnect IKEv2 VPN. All other VPN configurations are unaffected by this vulnerability.

Affected Software

Affected Software

Version 8.4, 8.6, 9.0, 9.1, 9.2 and 9.3

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Apply the appropriate updates from Cisco.

Common Vulnerabilities and Exposures (CVE)