PT-2021-14589 · Dell Emc · Idrac9

Published 2021-04-30 · Updated 2021-05-10 · CVE-2021-21539

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Dell EMC iDRAC9 versions prior to 4.40.00.00

Description The issue is related to a Time-of-check Time-of-use (TOCTOU) race condition. This could allow a remote authenticated attacker to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface.

Recommendations For versions prior to 4.40.00.00, update to version 4.40.00.00 or later to resolve the issue. As a temporary workaround, consider restricting simultaneous access to iDRAC through the web interface to minimize the risk of exploitation.

Fix

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

CVE-2021-21539

Affected Products

Idrac9

References · 3

• https://osv.dev/vulnerability/CVE-2021-21539 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21539 · Security Note
• https://dell.com/support/kbdoc/000185293 · Vendor Advisory