CVE-2021-31718 Server-side request forgery in n/a
An attacker can exploit DNS rebinding in the npupnp library's embedded web server to achieve remote code execution.
- 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-2021-31718?
CVE-2021-31718 is a high-severity server-side request forgery vulnerability in n/a, published on 25 Apr 2021. 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
The server in npupnp before 4.1.4 is affected by DNS rebinding in the embedded web server (including UPnP SOAP and GENA endpoints), leading to remote code execution.
Weakness: CWE-346
Which versions are affected by CVE-2021-31718?
It affects 1 product.
Products include Npupnp Project Npupnp.
How do I fix CVE-2021-31718?
No fix has been published for CVE-2021-31718 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-2021-31718 being exploited?
There is no known exploitation of CVE-2021-31718 in the wild and no public exploit code.
Sources
Also known as GHSA-8jpp-c53f-gvrm.