SB2020050711 - Multiple vulnerabilities in Cisco Adaptive Security Appliance and Firepower Threat Defense

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Path traversal (CVE-ID: CVE-2020-3187)

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)

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.

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-path-JE3azWw43
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-asa-kerberos-bypass-96Gghe2sS