CVE-2023-38702 Knowage Server vulnerable to path traversal via upload functionality

Critical 10.0 Published 4 Aug 2023 Updated 8 Oct 2024

Authenticated users can upload malicious JSP files to gain remote code execution on the Knowage server due to missing authorization checks.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-38702?

CVE-2023-38702 is a critical vulnerability in KnowageLabs Knowage-Server, published on 4 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Knowage is an open source analytics and business intelligence suite. Starting in the 6.x.x branch and prior to version 8.1.8, the endpoint `/knowage/restful-services/dossier/importTemplateFile` allows authenticated users to upload `template file` on the server, but does not need any authorization to be reached. When the JSP file is uploaded, the attacker just needs to connect to `/knowageqbeengine/foo.jsp` to gain code execution on the server. By exploiting this vulnerability, an attacker with low privileges can upload a JSP file to the `knowageqbeengine` directory and gain code execution capability on the server. This issue has been patched in Knowage version 8.1.8.

Weakness: CWE-22

Which versions are affected by CVE-2023-38702?

It affects 1 product.

Products include Eng Knowage.

How do I fix CVE-2023-38702?

No fix has been published for CVE-2023-38702 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-38702 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38702 exists.

Sources

Also known as GHSA-7mjh-73q3-c3fc.