CVE-2021-21539

Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface.

CVSS v3 5.9 MEDIUM
CVSS v2.0 4.6 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:H/Au:S/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector NETWORK

Access Complexity HIGH

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.dell.com/support/kbdoc/000185293	Vendor Advisory
https://www.dell.com/support/kbdoc/000185293	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:dell:idrac9_firmware:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:48

Type	Values Removed	Values Added
CVSS	v2 : ~~4.6~~ v3 : ~~7.1~~	v2 : 4.6 v3 : 5.9
References	~~() https://www.dell.com/support/kbdoc/000185293 - Vendor Advisory~~	() https://www.dell.com/support/kbdoc/000185293 - Vendor Advisory

Information

Published : 2021-04-30 21:15

Updated : 2024-11-21 05:48

NVD link : CVE-2021-21539

Mitre link : CVE-2021-21539

CVE.ORG link : CVE-2021-21539

JSON object : View

Products Affected

dell

idrac9_firmware

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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5.9 /10