Detections
Analytics

Dell iDRAC9 Out-of-bounds Write (CVE-2021-21540)

high Tenable OT Security Plugin ID 501920

Synopsis

The remote OT asset is affected by a vulnerability.

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.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

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

Plugin Details

Severity: High

ID: 501920

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 1/17/2024

Updated: 12/5/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P

CVSS Score Source: CVE-2021-21540

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:dell:idrac9_firmware

Required KB Items: Tenable.ot/Dell

Exploit Ease: No known exploits are available

Patch Publication Date: 4/30/2021

Vulnerability Publication Date: 4/30/2021

Reference Information

CVE: CVE-2021-21540

CWE: 121, 787