CVE-2024-21893 Ivanti Connect Secure, Policy Secure, and Neurons: web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
Confirmed exploited by CISA on · US federal patch deadline Feb 2, 2024
What to do
- Install Ivanti's security update for Connect Secure, Policy Secure, and Neurons. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Patch edge devices first — attackers often start scanning for them within hours of a fix.
- Never expose the device's admin page to the internet.
- After patching a device that was exposed, follow the vendor's compromise checks, end active sessions and change passwords.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: They face the internet and guard the whole network, so a flaw here can hand attackers a way in — and these devices usually run no antivirus, so break-ins go unnoticed.
The details
- Official name
- Ivanti Connect Secure, Policy Secure, and Neurons Server-Side Request Forgery (SSRF) Vulnerability
- Product
- Ivanti Connect Secure, Policy Secure, and Neurons
- CISA description
- Ivanti Connect Secure (ICS, formerly known as Pulse Connect Secure), Ivanti Policy Secure, and Ivanti Neurons contain a server-side request forgery (SSRF) vulnerability in the SAML component that allows an attacker to access certain restricted resources without authentication.
- Type of flaw
- Web page flaw (CWE-918)
- Confirmed exploited
- Jan 31, 2024 — known to be used in ransomware attacks
- US federal patch deadline
- Feb 2, 2024
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Answering about CVE-2024-21893 ·
Questions about CVE-2024-21893
Is CVE-2024-21893 being exploited?
Yes. CISA added CVE-2024-21893 to its Known Exploited Vulnerabilities catalog on Jan 31, 2024, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2024-21893?
Install Ivanti's security update for Connect Secure, Policy Secure, and Neurons. If no update exists, follow the vendor's workaround or stop using the product until one ships. Patch edge devices first — attackers often start scanning for them within hours of a fix.
Am I affected by CVE-2024-21893?
Only if you use Ivanti Connect Secure, Policy Secure, and Neurons. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.