Security Alert (A18-01-14): Vulnerability in Cisco Products

Description:

Cisco has released the security advisory to address a vulnerability in Cisco Adaptive Security Appliance (ASA) software with the webvpn feature enabled. An unauthenticated remote attacker could exploit the vulnerability by sending multiple specially crafted XML packets to the webvpn-configured interface on affected systems.

Affected Systems:

Cisco ASA Software running on the following Cisco products:

• 3000 Series Industrial Security Appliance (ISA)
• ASA 5500 Series Adaptive Security Appliances
• ASA 5500-X Series Next-Generation Firewalls
• ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers
• ASA 1000V Cloud Firewall
• Adaptive Security Virtual Appliance (ASAv)
• Firepower 2100 Series Security ApplianceFirepower 4110 Security Appliance
• Firepower 9300 ASA Security Module
• Firepower Threat Defense Software (FTD)

Impact:

Successful exploitation of the vulnerability could lead to authentication bypass, arbitrary code execution, denial of services, system reload, or complete control of an affected system.

Recommendation:

Software updates for affected systems are now available. Users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk. For detailed information of the available patches, please refer to the section "Fixed Software" of corresponding security advisory at vendor's website.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180129-asa1

Users should contact their product support vendors for the fixes and assistance.

More Information:

https://www.us-cert.gov/ncas/current-activity/2018/02/05/Cisco-Releases-Security-Updates
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180129-asa1
https://www.us-cert.gov/ncas/current-activity/2018/01/29/Cisco-Releases-Security-Update
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0101