CVE-2020-8137

Vulnerability

CVE-2020-8137 is a code injection vulnerability in blamer version 1.0.0 and earlier. The flaw arises from insufficient sanitization of user-supplied input, which can be passed to a dynamic code execution function (e.g., eval or exec), enabling arbitrary code injection [1].

Exploitation

An attacker can exploit this vulnerability by providing crafted input to any application that uses the vulnerable blamer library and allows external data to influence its input. This may be achieved without authentication if the input vector is exposed, such as through a web API or command-line argument [1].

Impact

Successful exploitation leads to remote code execution (RCE) under the privileges of the application using blamer. An attacker can then execute arbitrary commands, access sensitive data, modify files, or pivot to other systems [1].

Mitigation

The vendor has addressed the issue in versions after 1.0.0. Users should update to the latest version of blamer immediately [1].