CVE-2020-9544 Missing authorization in n/a
Attackers can install arbitrary firmware on D-Link DSL-2640B devices via the administrative interface without authentication, leading to full device compromise.
- 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-2020-9544?
CVE-2020-9544 is a high-severity missing authorization vulnerability in n/a, published on 5 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface doesn't perform authentication checks for a firmware-update POST request. Any attacker that can access the administrative interface can install firmware of their choice.
Weakness: CWE-306
Which versions are affected by CVE-2020-9544?
It affects 1 product.
Products include D-Link Dsl-2640b Firmware.
How do I fix CVE-2020-9544?
No fix has been published for CVE-2020-9544 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-9544 being exploited?
There is no known exploitation of CVE-2020-9544 in the wild and no public exploit code.
Sources
Also known as GHSA-5qgx-q55q-4jm7.