Heap-based buffer overflow in Ivanti Connect Secure (formerly Pulse Connect Secure) and Ivanti Policy Secure (formerly Pulse Policy Secure) - CVE-2024-21894
Published: April 4, 2024
Vulnerability identifier: #VU88139
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2024-21894
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Ivanti
Affected software:
Ivanti Connect Secure (formerly Pulse Connect Secure)
Ivanti Policy Secure (formerly Pulse Policy Secure)
Ivanti Connect Secure (formerly Pulse Connect Secure)
Ivanti Policy Secure (formerly Pulse Policy Secure)
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the IPSec component. A remote attacker can send specially crafted packets to the device, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2024-21894
Install updates from vendor's website.
Sources
- https://www.ivanti.com/blog/security-update-for-ivanti-connect-secure-and-policy-secure
- https://forums.ivanti.com/s/article/SA-CVE-2024-21894-Heap-Overflow-CVE-2024-22052-Null-Pointer-Dereference-CVE-2024-22053-Heap-Overflow-and-CVE-2024-22023-XML-entity-expansion-or-XXE-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Gateways?language=en_US