CVE-2021-42171 Unrestricted Upload of File with Dangerous Type in Zenario CMS
Attackers can upload malicious files to Zenario CMS to execute arbitrary code and compromise the web server.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-42171?
CVE-2021-42171 is a high-severity vulnerability in n/a, published on 14 Mar 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Zenario CMS 9.0.54156 is vulnerable to File Upload. The web server can be compromised by uploading and executing a web-shell which can run commands, browse system files, browse local resources, attack other servers, and exploit the local vulnerabilities, and so forth.
Weakness: CWE-434
Which versions are affected by CVE-2021-42171?
2 open source packages ship an affected version, including tribalsystems/zenario. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
tribalsystems/zenario Packagist | All versions | 9.0.55143 |
tribalsystems/zenario Packagist | All versions | 9.0.55143 |
Products include Tribalsystems Zenario.
How do I fix CVE-2021-42171?
Upgrade tribalsystems/zenario to 9.0.55143 or later.
Is CVE-2021-42171 being exploited?
There is no known exploitation of CVE-2021-42171 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-rgg3-3wh7-w935.