Resource exhaustion in Cisco Firewall Threat Defense (FTD) - CVE-2017-12245
Published: October 5, 2017
Vulnerability identifier: #VU8701
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-12245
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Firewall Threat Defense (FTD)
Cisco Firewall Threat Defense (FTD)
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in SSL traffic decryption for Cisco Firepower Threat Defense (FTD) Software due to an error in how the Firepower Detection Snort Engine handles SSL traffic decryption and notifications to and from the Adaptive Security Appliance (ASA) handler. A remote attacker can send a steady stream of malicious Secure Sockets Layer (SSL) traffic through the device, trigger depletion of system memory and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
How to mitigate CVE-2017-12245
The vulnerability is addressed in the following versions: 6.2.0.3 or 6.2.0.2.