QID 731320

Date Published: 2024-04-04

QID 731320: Ivanti Connect Secure (ICS) Multiple Vulnerabilities

Ivanti Connect Secure provides a seamless, cost-effective, SSL VPN solution for remote and mobile users from any web-enabled device to corporate resources.

CVE-2024-21894: A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack. In certain conditions this may lead to execution of arbitrary code
CVE-2024-22052 :A null pointer dereference vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack
CVE-2024-22053: A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack or in certain conditions read contents from memory.
CVE-2024-22023: An XML entity expansion or XEE vulnerability in SAML component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated attacker to send specially crafted XML requests in-order-to temporarily cause resource exhaustion thereby resulting in a limited-time DoS.

Affected Versions:
These vulnerabilities impact all supported versions - Version 9.x and 22.x

Patched Versions:
Ivanti Connect Secure: 22.1R6.2, 22.2R4.2, 22.3R1.2, 22.4R1.2, 22.4R2.4, 22.5R1.3, 22.5R2.4, 22.6R2.3, 9.1R14.6, 9.1R15.4, 9.1R16.4, 9.1R17.4 and 9.1R18.5

QID Detection Logic: This QID checks for the installed version of Ivanti Connect Secure (ICS) by sending a GET request to the '/dana-cached/sc/PulseSecureInstallerService.exe' endpoint.

Successful exploitation of these vulnerabilities allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack.

CVSS V3 rated as Critical - 9.8 severity.

CVSS V2 rated as Critical - 8.5 severity.

Solution

Customers are advised to upgrade their Ivanti Connect Secure instances to the latest version. For more information, please refer to the Ivanti Security Advisory.

Vendor References

Ivanti Security Advisory - 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

CVEs related to QID 731320

CVE-2024-21894 | CVE-2024-22052 | CVE-2024-22053 | CVE-2024-22023 |

Software Advisories

Advisory ID	Software	Component	Link
000091545			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

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