SB2020050711 - Multiple vulnerabilities in Cisco Adaptive Security Appliance and Firepower Threat Defense
Published: May 7, 2020 Updated: May 23, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Path traversal (CVE-ID: CVE-2020-3187)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
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 or delete arbitrary files on the targeted system.
2) Improper Authentication (CVE-ID: CVE-2020-3125)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists in the Kerberos authentication feature due to insufficient identity verification of the KDC when a successful authentication response is received. A remote attacker can spoof the KDC server response to the ASA device and bypass Kerberos authentication.
Remediation
Install update from vendor's website.