9.8
CRITICAL
CVE-2024-21894
Ivanti Connect Secure Heap Overflow Vulnerability
Description

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

INFO

Published Date :

April 4, 2024, 11:15 p.m.

Last Modified :

July 3, 2024, 1:46 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2024-21894 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2024-21894 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ivanti connect_secure
2 Ivanti policy_secure
: Total Affected Vendor : 1 | Products : 2
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-21894.

URL Resource
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 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
AlexLondan/CVE-2024-21894-Proof-of-concept

None

Updated: 5 months ago
3 stars 0 fork 0 watcher
Born at : April 12, 2024, 8:50 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
RansomGroupCVE/CVE-2024-21894-POC

Exploit CVE-2024-21894 for Vulnerable Ivanti Connect Secure and Policy Secure Gateways POC

Updated: 5 months, 1 week ago
3 stars 0 fork 0 watcher
Born at : April 8, 2024, 4:50 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
Ronoffer/CVE-2024-21894-Proof-of-concept

POC for new Ivanti RCE explosed 16000 VPN Gateways

Updated: 5 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : April 6, 2024, 6:17 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-21894 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-21894 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jul. 03, 2024

    Action Type Old Value New Value
    Added CWE CISA-ADP CWE-787
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 08, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type 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 No Types Assigned 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 Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r10:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r11:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r11.5:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r12:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r13:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r14:*:*:lts:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r15:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r16:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r17:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r18:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r2:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r3:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r4:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r4.1:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r4.2:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r4.3:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r5:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r6:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r7:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r8:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:9.1:r9:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.1:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.2:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.3:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.4:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.5:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.6:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.0:-:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.0:r1:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.0:r2:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.0:r2.1:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.0:r3:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.0:r3.1:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.0:r4:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:-:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r1:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r10:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r11:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r12:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r13:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r14:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r15:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r16:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r17:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r18:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r2:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r3:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r4:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r5:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r6:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r7:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r8:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:9.1:r9:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:22.1:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:22.2:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:22.3:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:22.4:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:22.5:*:*:*:*:*:*:* *cpe:2.3:a:ivanti:policy_secure:22.6:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Apr. 04, 2024

    Action Type Old Value New Value
    Added Description 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
    Added Reference HackerOne 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 [No types assigned]
    Added CVSS V3 HackerOne AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-21894 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-21894 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: