Description:

Cisco released a security advisory to address the vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA). An unauthenticated remote attacker could exploit the vulnerability by sending a specially crafted HTTP request to an affected system.

Researchers report that exploitations of the vulnerability (CVE-2018-0296) are observed. Users are advised to take immediate action to patch the affected systems since there is elevated risk of cyber attacks for the vulnerability.

Affected Systems:

Cisco ASA Software running on the following Cisco products:

• 3000 Series Industrial Security Appliance (ISA)
• ASA 1000V Cloud Firewall
• 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
• Adaptive Security Virtual Appliance (ASAv)
• Firepower 2100 Series Security Appliance
• Firepower 4100 Series Security Appliance
• Firepower 9300 ASA Security Module
• FTD Virtual (FTDv)

Impact:

Successful exploitation of the vulnerability could lead to information disclosure, denial of services or system reload on 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.

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

More Information:

https://blogs.cisco.com/security/cve-2018-0296
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-asaftd
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0296