Zero-day vulnerability in Ivanti Cloud Services Appliance (CSA)

Path traversal
CVE-2024-9381

Vulnerability details

Advisory: SB2024100852 - Multiple vulnerabilities in Ivanti Cloud Services Appliance (CSA)

Vulnerable component: Ivanti Cloud Services Appliance (CSA)

CVE-ID: CVE-2024-9381

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Description:

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can send a specially crafted HTTP request and compromise the affected system.

Note, the vulnerability is being actively exploited in the wild against Ivanti CSA 4.6 users, according to vendor's advisory. Vulnerability exploitation was chained with previously address vulnerability #VU97617 (CVE-2024-8963).

External links:

https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-CSA-Cloud-Services-Appliance-CVE-2024-9379-CVE-2024-9380-CVE-2024-9381

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.