CVE-2025-22466

Remediation/Mitigation Strategy for CVE-2025-22466

Vulnerability: Reflected Cross-Site Scripting (XSS)

Description: A reflected XSS vulnerability exists in Ivanti Endpoint Manager before version 2024 SU1 and before version 2022 SU7. This vulnerability allows a remote, unauthenticated attacker to inject arbitrary web scripts into a user’s browser. This injected script can then execute in the context of the user’s session with the Ivanti Endpoint Manager, potentially allowing the attacker to steal sensitive information, modify data, or perform actions on behalf of the user, including potentially gaining administrative privileges.

Severity: High

  • CVSS v3 Score: 8.2 (High)
  • Requires User Interaction

Known Exploit:

The vulnerability is exploited by crafting a malicious URL containing a payload of JavaScript code. When a user clicks on this specially crafted URL, the server reflects the malicious script back to the user’s browser without proper sanitization. The browser then executes the script, giving the attacker control within the context of the user’s session. Gaining admin privileges is possible.

Remediation:

  1. Apply Patch: Upgrade Ivanti Endpoint Manager to version 2024 SU1 or later, or version 2022 SU7 or later. This is the primary and recommended remediation.
  2. Input Validation: Implement robust input validation and output encoding on all web pages of the Ivanti Endpoint Manager. This includes sanitizing user input to remove or escape any potentially malicious characters before displaying it to the user.
  3. Content Security Policy (CSP): Implement a strict Content Security Policy (CSP) to restrict the sources from which the browser is allowed to load resources. This can help to prevent the execution of injected scripts. Ensure that inline JavaScript and eval() are disabled or strictly controlled.
  4. Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) to detect and block malicious requests that attempt to exploit the XSS vulnerability. Configure the WAF with rules specifically designed to prevent XSS attacks.

Mitigation:

  1. User Awareness: Educate users about the risks of clicking on suspicious links, especially those received via email or from untrusted sources.
  2. Principle of Least Privilege: Grant users only the minimum level of access required to perform their job duties. This limits the potential impact if an attacker gains control of a user’s account.
  3. Regular Security Audits: Perform regular security audits and penetration testing to identify and address vulnerabilities in the Ivanti Endpoint Manager environment.
  4. Monitor Web Traffic: Implement monitoring and alerting systems to detect unusual activity, such as suspicious requests or script execution, that could indicate an XSS attack.
  5. Disable unnecessary features: If possible, disable any unnecessary features in Ivanti Endpoint Manager to reduce the attack surface.

Assigner

  • ivanti <3c1d8aa1-5a33-4ea4-8992-aadd6440af75>

Date

  • Published Date: 2025-04-08 14:27:56
  • Updated Date: 2025-04-08 18:13:53

More Details

CVE-2025-22466