CVE-2021-43449 Server-side request forgery in n/a

High 8.1 Published Updated

Attackers can exploit the document editor service to read and serve arbitrary URLs, potentially accessing internal resources.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-43449?

CVE-2021-43449 is a high-severity server-side request forgery vulnerability in n/a, published on 23 Jan 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Server-Side Request Forgery (SSRF). The document editor service can be abused to read and serve arbitrary URLs as a document.

Weakness: CWE-918

Which versions are affected by CVE-2021-43449?

It affects 1 product.

Products include Onlyoffice Server.

How do I fix CVE-2021-43449?

No fix has been published for CVE-2021-43449 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-2021-43449 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-43449 exists.

Sources

Also known as GHSA-pw64-6v6v-94vp.

Is CVE-2021-43449 in your software?

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