CVE-2021-21542 Cross-site scripting in Integrated Dell Remote Access Controller (iDRAC)

Medium 4.8 Published Updated

Remote authenticated attackers can inject malicious scripts into iDRAC9 certificate generation, leading to code execution in victim browsers.

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

What is CVE-2021-21542?

CVE-2021-21542 is a medium-severity cross-site scripting vulnerability in Integrated Dell Remote Access Controller (iDRAC), published on 30 Apr 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Dell EMC iDRAC9 versions prior to 4.40.10.00 contain multiple stored cross-site scripting vulnerabilities. A remote authenticated malicious user with high privileges could potentially exploit these vulnerabilities to store malicious HTML or JavaScript code through multiple affected while generating a certificate. When victim users access the submitted data through their browsers, the malicious code gets executed by the web browser in the context of the vulnerable application.

Weakness: CWE-79

Which versions are affected by CVE-2021-21542?

It affects 1 product.

Products include Dell Idrac9 Firmware.

How do I fix CVE-2021-21542?

No fix has been published for CVE-2021-21542 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-21542 being exploited?

There is no known exploitation of CVE-2021-21542 in the wild and no public exploit code.

Sources

Also known as GHSA-7q5c-73vg-wcgj.

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