CVE-2021-33558 Information disclosure in n/a

High 7.5 Published 27 May 2021 Updated 3 Aug 2024

Remote attackers can obtain sensitive information from specific web files due to a site-specific misconfiguration in Boa web server deployments.

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

What is CVE-2021-33558?

CVE-2021-33558 is a high-severity vulnerability in n/a, published on 27 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Boa 0.94.13 allows remote attackers to obtain sensitive information via a misconfiguration involving backup.html, preview.html, js/log.js, log.html, email.html, online-users.html, and config.js. NOTE: multiple third parties report that this is a site-specific issue because those files are not part of Boa.

Which versions are affected by CVE-2021-33558?

It affects 1 product.

Products include Boa Boa.

How do I fix CVE-2021-33558?

No fix has been published for CVE-2021-33558 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-33558 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-33558 exists.

Public exploit code: 1 Nuclei template and 2 proofs of concept on GitHub.

Sources

Also known as GHSA-8rj5-wwmx-vj53.