CVE-2021-21540 Memory corruption in Integrated Dell Remote Access Controller (iDRAC)
Remote authenticated attackers can exploit a stack-based overflow in Dell iDRAC9 to overwrite configuration information via large payloads.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21540?
CVE-2021-21540 is a medium-severity memory corruption vulnerability in Integrated Dell Remote Access Controller (iDRAC), published on 30 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a stack-based overflow vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to overwrite configuration information by injecting arbitrarily large payload.
Which versions are affected by CVE-2021-21540?
It affects 1 product.
Products include Dell Idrac9 Firmware.
How do I fix CVE-2021-21540?
No fix has been published for CVE-2021-21540 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-2021-21540 being exploited?
There is no known exploitation of CVE-2021-21540 in the wild and no public exploit code.
Other vulnerabilities in Integrated Dell Remote Access Controller (iDRAC)
- CVE-2021-21538 Auth bypass in Integrated Dell Remote Access Controller (iDRAC)
- CVE-2019-3706 Web Interface Authentication Bypass Vulnerability
- CVE-2019-3707 WS-MAN Authentication Bypass Vulnerability
- CVE-2020-5366 Path traversal in Integrated Dell Remote Access Controller (iDRAC)
- CVE-2018-1249 Security feature bypass in iDRAC9
Sources
Also known as GHSA-w6vv-h4qp-w4mm.