CVE Catalog

CVE-2017-3807

High
Published: Translated: NVD NIST

Summary

A vulnerability in Common Internet Filesystem (CIFS) code in the Clientless SSL VPN functionality of Cisco ASA Software, Major Releases 9.0-9.6, could allow an authenticated, remote attacker to cause a heap overflow. An attacker could exploit this vulnerability by sending a crafted URL to the affected system.

Risk Assessment

The vulnerability could lead to a reload of the affected system or potentially execute code by a remote attacker. A valid TCP connection and valid credentials to log in to the Clientless SSL VPN portal are required.

Recommendation

It is recommended to update Cisco ASA software to the latest version to mitigate this vulnerability. Additionally, monitor and restrict access to the Clientless SSL VPN portal.

Related vulnerabilities

Original NVD description (English source)

A vulnerability in Common Internet Filesystem (CIFS) code in the Clientless SSL VPN functionality of Cisco ASA Software, Major Releases 9.0-9.6, could allow an authenticated, remote attacker to cause a heap overflow. The vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by sending a crafted URL to the affected system. An exploit could allow the remote attacker to cause a reload of the affected system or potentially execute code. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 or IPv6 traffic. A valid TCP connection is needed to perform the attack. The attacker needs to have valid credentials to log in to the Clientless SSL VPN portal. Vulnerable Cisco ASA Software running on the following products may be affected by th

Vulnerability data from NVD (NIST) · CISA KEV · EPSS