CVE-2021-24018

CVSS V2 Medium 5.8 CVSS V3 High 8.8

Description

A buffer underwrite vulnerability in the firmware verification routine of FortiOS before 7.0.1 may allow an attacker located in the adjacent network to potentially execute arbitrary code via a specifically crafted firmware image.

Overview

CVE ID
CVE-2021-24018

Assigner
psirt@fortinet.com

Vulnerability Status
Analyzed

Published Version
2021-08-04T15:15:08

Last Modified Date
2021-11-16T14:41:57

Weakness Enumerations

CWE	URL
NVD-CWE-Other	http://cwe.mitre.org/data/definitions/NVD-Other.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:o:fortinet:fortios::::::::	1	OR		6.2.10
cpe:2.3:o:fortinet:fortios::::::::	1	OR	6.4.0	6.4.7
cpe:2.3:o:fortinet:fortios:7.0.0:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:A/AC:L/Au:N/C:P/I:P/A:P

Access Vector
ADJACENT_NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
5.8

Severity
MEDIUM

Exploitability Score
6.5

Impact Score
6.4

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.8

Base Severity
HIGH

Exploitability Score
2.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://fortiguard.com/advisory/FG-IR-21-046	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-24018
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24018

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:46:46				Added to TrackCVE
2022-12-05 07:23:25	2021-08-04T15:15Z	2021-08-04T15:15:08	CVE Published Date	updated
2022-12-05 07:23:25		2021-11-16T14:41:57	CVE Modified Date	updated
2022-12-05 07:23:25		Analyzed	Vulnerability Status	updated