CVE-2021-33181 Server-side request forgery in Synology Video Station

Medium 6.6 Published 1 Jun 2021 Updated 17 Sep 2024

Authenticated attackers can exploit SSRF in Synology Video Station to access internal network resources, requiring an upgrade to mitigate.

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

What is CVE-2021-33181?

CVE-2021-33181 is a medium-severity server-side request forgery vulnerability in Synology Video Station, published on 1 Jun 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Server-Side Request Forgery (SSRF) vulnerability in webapi component in Synology Video Station before 2.4.10-1632 allows remote authenticated users to send arbitrary request to intranet resources via unspecified vectors.

Weakness: CWE-918

Which versions are affected by CVE-2021-33181?

It affects 1 product.

Products include Synology Video Station.

How do I fix CVE-2021-33181?

No fix has been published for CVE-2021-33181 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2021-33181 being exploited?

There is no known exploitation of CVE-2021-33181 in the wild and no public exploit code.

Sources

Also known as GHSA-6q24-858g-34rg.