Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.
The application searches for critical resources using an externally-supplied search path that can point to resources that are not under the application’s direct control.
|Name||Vendor||Start Version||End Version|
|Red Hat Enterprise Linux 7||RedHat||openssh-0:7.4p1-11.el7||*|
This might allow attackers to execute their own programs, access unauthorized data files, or modify configuration in unexpected ways. If the application uses a search path to locate critical resources such as programs, then an attacker could modify that search path to point to a malicious program, which the targeted application would then execute. The problem extends to any type of critical resource that the application trusts. Some of the most common variants of untrusted search path are: