CVE-2021-28185 ASUS BMC's firmware: buffer overflow - ActiveX configuration-1 acquisition

Medium 4.9 Published Updated

Remote attackers can cause a denial of service in ASUS BMC firmware via a buffer overflow in the ActiveX configuration page.

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-2021-28185?

CVE-2021-28185 is a medium-severity memory corruption vulnerability in ASUS BMC firmware for ASMB8-iKVM, published on 6 Apr 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The specific function in ASUS BMC’s firmware Web management page (ActiveX configuration-1 acquisition) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.

Weakness: CWE-120

Which versions are affected by CVE-2021-28185?

It affects 3 products.

Products include Asus Asmb8-Ikvm Firmware, Asus Z10pe-D16 Ws Firmware, Asus Z10pr-D16 Firmware.

How do I fix CVE-2021-28185?

No fix has been published for CVE-2021-28185 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-28185 being exploited?

There is no known exploitation of CVE-2021-28185 in the wild and no public exploit code.

Sources

Also known as GHSA-48cg-rvc9-6x4g.

Is CVE-2021-28185 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free