CVE-2021-21538CWE-287

Dell EMC iDRAC9 versions 4.40.00.00 and later, but prior to 4.40.10.00, contain an improper authentication vulnerability

Critical · published July 29, 2021

CVSS v3.1
9.6
EPSS
1%
Percentile
74.1
In the wild
Unconfirmed
What it is

🔥 A remote unauthenticated attacker could stroll right into your virtual console! That’s right, Dell EMC iDRAC9 versions 4.40.00.00 through 4.40.10.00 have an improper authentication vulnerability that’s too easy to exploit! Think of it as leaving the front door of a secured building wide open, allowing anyone to walk in without a single check. This flaw means attackers can bypass authentication checks, just as a sneaky visitor could wander into a room that should be strictly off-limits. If exploited, this vulnerability could allow an attacker to access sensitive system controls, potentially leading to unauthorized changes, data breaches, or even complete system takeovers. This is absolutely devastating for the integrity of your infrastructure, and you definitely don't want to give unwelcome guests access to your critical systems!

Put simply

Think of it as leaving the front door of a secured building wide open, allowing anyone to walk in without a single check. This flaw means attackers can bypass authentication checks, just as a sneaky visitor could wander into a room that should be strictly off-limits. This vulnerability stems from improper checks in the authentication process on Dell EMC iDRAC9, enabling unauthorized users to access the virtual console without needing credentials, which should never happen!

What to do

If exploited, this vulnerability could allow an attacker to access sensitive system controls, potentially leading to unauthorized changes, data breaches, or even complete system takeovers. This is absolutely devastating for the integrity of your infrastructure, and you definitely don't want to give unwelcome guests access to your critical systems! Make sure to patch your iDRAC9 to version 4.40.10.00 or later immediately to close this security hole. Additionally, review your access controls and audit logs to ensure no unauthorized attempts were made while this vulnerability was active. Don't delay! You've got this! With these steps, you can secure your systems and keep those digital doors locked tight! 🛡️

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.01499 · 74.1th percentile
Weakness
CWE-287 · Improper Authentication
Published
2021-07-29T15:55Z
EPSS history
Timeline
  • 29 JUL 15:55Z
    Dell EMC iDRAC9 versions 4.40.00.00 and later, but prior to 4.40.10.00, contain an improper authentication vulnerability
    cvelistv5