Arbitrary file upload in Ivanti Connect Secure (formerly Pulse Connect Secure) - CVE-2021-22900
Published: May 5, 2021 / Updated: February 20, 2022
Vulnerability identifier: #VU52876
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2021-22900
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to insufficient validation of archives within the file upload feature. A remote authenticated administrator can upload a malicious file and execute it on the server.
Affected software
Ivanti Connect Secure (formerly Pulse Connect Secure)
How to mitigate CVE-2021-22900
Install updates from vendor's website.
Ivanti Connect Secure (formerly Pulse Connect Secure) - update to 9.1R11.4