Thecus · Thecus Nas Server N8800 · CVE-2013-5667
**Name of the Vulnerable Software and Affected Versions**
Thecus NAS server N8800 version 5.03.01
**Description**
The issue allows remote attackers to execute arbitrary commands. This is achieved through a get userid action that contains shell metacharacters in the `username` parameter.
**Recommendations**
For Thecus NAS server N8800 version 5.03.01, avoid using the `username` parameter in the get userid action until the issue is resolved. As a temporary workaround, consider restricting access to the get userid action to minimize the risk of exploitation.