CVE

CVE-2017-6609

Date: (C)2017-04-26   (M)2023-12-22

A vulnerability in the IPsec code of Cisco ASA Software could allow an authenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to improper parsing of malformed IPsec packets. An attacker could exploit this vulnerability by sending malformed IPsec packets to the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. An attacker needs to establish a valid IPsec tunnel before exploiting this vulnerability. This vulnerability affects Cisco ASA Software running on the following products: Cisco ASA 1000V Cloud Firewall, Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Firepower 9300 ASA Security Module, Cisco ISA 3000 Industrial Security Appliance. Fixed versions: 9.1(7.8) 9.2(4.15) 9.4(4) 9.5(3.2) 9.6(2). Cisco Bug IDs: CSCun16158.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:		CVSS V2 Severity:
CVSS Score : 7.7		CVSS Score : 6.8
Exploit Score: 3.1		Exploit Score: 8.0
Impact Score: 4.0		Impact Score: 6.9
CVSS V3 Metrics:		CVSS V2 Metrics:
Attack Vector: NETWORK		Access Vector: NETWORK
Attack Complexity: LOW		Access Complexity: LOW
Privileges Required: LOW		Authentication: SINGLE
User Interaction: NONE		Confidentiality: NONE
Scope: CHANGED		Integrity: NONE
Confidentiality: NONE		Availability: COMPLETE
Integrity: NONE
Availability: HIGH

Reference:

SECTRACK-1038316

BID-97936

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170419-asa-ipsec