Path traversal in Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software

1) Path traversal

EUVDB-ID: #VU31817

Risk: Medium

CVSSv3.1: 7.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2020-3452

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the web services interface. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco Adaptive Security Appliance (ASA): - - 9.14

Cisco Firepower Threat Defense (FTD): 6.2.2 - 6.6.0

CPE2.3

• cpe:2.3:h:cisco_systems:asa:9.6:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:asa:9.7:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:asa:9.8:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:asa:9.9:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:asa:9.14:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:cisco_ftd:6.2.2:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:cisco_ftd:6.2.3:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:cisco_ftd:6.3.0:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:cisco_ftd:6.4.0:*:*:*:*:*:*:
• cpe:2.3:h:cisco_systems:cisco_ftd:6.5.0:*:*:*:*:*:*:

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ro-path-KJuQhB86

Q & A

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?

Yes. This vulnerability is being exploited in the wild.