Privilege escalation in FortiADC



Published: 2022-09-06
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-43076
CWE-ID CWE-269
Exploitation vector Network
Public exploit N/A
Vulnerable software
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FortiADC
Server applications / Other server solutions

Vendor Fortinet, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Privilege Management

EUVDB-ID: #VU67046

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43076

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to improper privilege management. A remote authenticated user with read-only permissions can bypass implemented security restrictions and modify system files using the shell access.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiADC: 5.3.0 - 6.2.1

External links

http://fortiguard.com/psirt/FG-IR-21-215


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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