Code injection in Ivanti Endpoint Manager

1) Embedded malicious code (backdoor)

EUVDB-ID: #VU86573

Risk: Critical

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-44529

CWE-ID: CWE-506 - Embedded Malicious Code

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to the application.

The vulnerability exists due to presence of embedded malicious functionality in the application code (aka backdoor) within the "/opt/landesk/broker/webroot/lib/csrf-magic.php" file. A remote non-authenticated attacker can set specially crafted cookies and gain unauthorized access to the application.

Note, the vulnerability patched in 2021 by Ivanti is considered a backdoor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Endpoint Manager: before 4.6

External links

http://forums.ivanti.com/s/article/SA-2021-12-02
http://packetstormsecurity.com/files/166383/Ivanti-Endpoint-Manager-CSA-4.5-4.6-Remote-Code-Execution.html
http://packetstormsecurity.com/files/170590/Ivanti-Cloud-Services-Appliance-CSA-Command-Injection.html
http://www.labs.greynoise.io/grimoire/2024-02-what-is-this-old-ivanti-exploit/index.html
http://attackerkb.com/topics/XTKrwlZd7p/cve-2021-44529

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.