Vulnerability identifier: #VU52742
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco Firepower Threat Defense (FTD)
Hardware solutions /
Security hardware applicances
3000 Series Industrial Security Appliance (ISA)
Server applications /
IDS/IPS systems, Firewalls and proxy servers
Cisco Firepower Threat Defense Virtual (FTDv)
Server applications /
IDS/IPS systems, Firewalls and proxy servers
ASA 5512-X Adaptive Security Appliance
Server applications /
Other server solutions
ASA 5515-X Adaptive Security Appliance
Server applications /
Other server solutions
ASA 5525-X Adaptive Security Appliance
Server applications /
Other server solutions
ASA 5545-X Adaptive Security Appliance
Server applications /
Other server solutions
ASA 5555-X Adaptive Security Appliance
Server applications /
Other server solutions
Firepower 1000 Series Appliances
Hardware solutions /
Other hardware appliances
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the software-based SSL/TLS message handler. A remote attacker can send a specially crafted SSL/TLS message, trigger memory corruption and cause a denial of service condition on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Cisco Firepower Threat Defense (FTD): 6.2.2, 6.2.3, 6.3.0
3000 Series Industrial Security Appliance (ISA): All versions
ASA 5512-X Adaptive Security Appliance: All versions
ASA 5515-X Adaptive Security Appliance: All versions
ASA 5525-X Adaptive Security Appliance: All versions
ASA 5545-X Adaptive Security Appliance: All versions
ASA 5555-X Adaptive Security Appliance: All versions
Firepower 1000 Series Appliances: All versions
Cisco Firepower Threat Defense Virtual (FTDv): All versions
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-ssl-decrypt-dos-DdyLuK6c
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.