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High Severity|Ivanti
56
SVRS
9.8
CVSSv3
0.32237
EPSS
TAGS
In The Wild
VECTOR STRING
CVSS:3.1AV:NAC:LPR:NUI:NS:UC:HI:HA:H
PUBLICATION DATE2024-04-19
LAST MODIFIED2025-03-24
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Security Intelligence Brief
1. What is this vulnerability and why does it matter?
This is a Heap overflow vulnerability (CWE-122) affecting the WLInfoRailService component of Ivanti Avalanche. It matters significantly because it allows an unauthenticated remote attacker to execute arbitrary commands on the affected system, potentially leading to full system compromise, data exfiltration, or denial of service.
2. What are the CVSS score, severity level, and disclosure details?
The CVSS score for this vulnerability is 9.8, which classifies it as Critical severity. It was published on 2024-04-19 01:10:11 and last modified on 2025-03-24 21:08:25.
3. Which products, vendors, systems, and versions are affected?
The vulnerability affects Ivanti Avalanche systems. Specifically, all versions of Ivanti Avalanche before 6.4.3 are vulnerable. The affected component is the WLInfoRailService.
4. What is the technical root cause and attack vector?
The technical root cause is a Heap overflow (CWE-122) within the WLInfoRailService component. The attack vector is remote and unauthenticated, meaning an attacker does not require prior authentication or local access to exploit this flaw.
5. How can this vulnerability be exploited?
This vulnerability can be exploited by an unauthenticated remote attacker who can trigger the heap overflow in the WLInfoRailService component of Ivanti Avalanche. Successful exploitation allows the attacker to execute arbitrary commands on the vulnerable system, giving them control over the affected server.
6. What mitigation steps and patches are available?
The primary mitigation step is to upgrade Ivanti Avalanche to version 6.4.3 or later. This patched version addresses the heap overflow vulnerability in the WLInfoRailService component. Organizations should apply this update immediately.
7. How can vulnerable systems be detected?
Vulnerable systems can be detected by checking the installed version of Ivanti Avalanche. Any installation running a version prior to 6.4.3 is considered vulnerable to CVE-2024-24996. Administrators should verify the software version through their system management tools or Ivanti Avalanche console.
10. What public intelligence references and advisories exist?
Public intelligence references include the CVE entry itself: CVE-2024-24996. It is advisable to consult Ivanti's official security advisories or knowledge base articles related to this CVE for the most up-to-date and vendor-specific information.
11. What is the risk assessment and urgency level?
Given the CVSS score of 9.8 (Critical) and the potential for unauthenticated remote arbitrary command execution, the risk assessment for CVE-2024-24996 is extremely high. The urgency level for applying patches is critical, requiring immediate attention to prevent potential compromise of Ivanti Avalanche installations.
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