Information disclosure in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2020-3259
Published: May 7, 2020 / Updated: February 1, 2024
Vulnerability identifier: #VU27595
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2020-3259
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Cisco Systems, Inc
Affected software:
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a buffer tracking issue when the software parses invalid URLs that are requested from the web services interface. A remote attacker can send a specially crafted GET request and gain unauthorized access to sensitive information on the system.
How to mitigate CVE-2020-3259
Vendor recommends to update the Cisco FTD Software Release to version 6.2.3.16 (June 2020), 6.3.0.6 (future release), 6.4.0.9 (May 2020) and 6.5.0.5 (future release).