CRLF injection in Ivanti Connect Secure and Policy Secure

1) CRLF injection

EUVDB-ID: #VU98388

Risk: Low

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2024-37404

CWE-ID: CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote user to inject arbitrary data in server response.

The vulnerability exists due to insufficient validation of attacker-supplied data in the admin portal. A remote administrator can pass specially crafted data to the application containing CR-LF characters and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ivanti Connect Secure (formerly Pulse Connect Secure): before 22.7R2.1

Ivanti Policy Secure (formerly Pulse Policy Secure): before 22.7R1.1

CPE2.3

• cpe:2.3:a:ivanti:pulse_connect_secure:*:*:*:*:*:*:*:*
• cpe:2.3:a:ivanti:pulse_policy_secure:*:*:*:*:*:*:*:*

External links

https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-and-Policy-Secure-CVE-2024-37404

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.