CVE-2019-1794 Cisco Directory Connector Search Order Hijacking Vulnerability

What is CVE-2019-1794?

CVE-2019-1794 is a medium-severity path traversal vulnerability in Cisco Directory Connector, published on 18 Apr 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the search path processing of Cisco Directory Connector could allow an authenticated, local attacker to load a binary of their choosing. The vulnerability is due to uncontrolled search path elements. An attacker could exploit this vulnerability by placing a binary of their choosing earlier in the search path utilized by Cisco Directory Connector to locate and load required resources.

Weakness: CWE-427

Which versions are affected by CVE-2019-1794?

It affects 1 product.

Products include Cisco Meeting Server.

How do I fix CVE-2019-1794?

No fix has been published for CVE-2019-1794 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2019-1794 being exploited?

There is no known exploitation of CVE-2019-1794 in the wild and no public exploit code.

Other vulnerabilities in Cisco Directory Connector

• CVE-2016-6448 Memory corruption in Cisco Meeting Server before 2.0.3 and Acano Server before 1.9.5 Critical 9.8
• CVE-2017-12249 Misconfiguration in Cisco Meeting Server Critical 9.1
• CVE-2016-6445 Auth bypass in Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 Critical 9.1
• CVE-2018-0439 Cisco Meeting Server Cross-Site Request Forgery Vulnerability High 8.8
• CVE-2016-6444 Cross-site request forgery in Cisco Meeting Server 1.8, 1.9, 2.0 High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-m57f-9997-gm6m.