#VU66213 Stack-based buffer overflow in iDRAC9 - CVE-2021-21540

Vulnerability identifier: #VU66213

Vulnerability risk: Medium

CVSSv4.0: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-21540

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
iDRAC9
Web applications / Remote management & hosting panels

Vendor: Dell

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when #CONDITION1#. A remote user can exploit this vulnerability to overwrite configuration information by injecting arbitrarily large payload.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

iDRAC9: 2.65.65.65 - 4.40.35.00

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External links
https://www.dell.com/support/kbdoc/000185293

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.