Known exploited vulnerability
CVE-2024-21893
The short answer
CVE-2024-21893 affects Ivanti ICS and is rated high (CVSS 8.2). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-01-31: attackers are using it, so patch it first.
What it is
A server-side request forgery vulnerability in the SAML component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x) and Ivanti Neurons for ZTA allows an attacker to access certain restricted resources without authentication.
Weakness: CWE-918.
Severity
8.2 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Exploited (CISA KEV)
Yes, since Jan 31, 2024
Federal due date Feb 2, 2024
EPSS, next 30 days
100%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- Low
- Availability impact
- None
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected products
ICS, IPS, connect_secure, policy_secure. NVD's record lists the exact affected versions.
References
- forums.ivanti.com/s/article/CVE-2024-21888-Privilege-Escalation-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure?language=en_US Vendor Advisory
- forums.ivanti.com/s/article/CVE-2024-21888-Privilege-Escalation-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure?language=en_US Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21893 US Government Resource
Questions
Is CVE-2024-21893 being exploited?
Yes. CISA added CVE-2024-21893 to its Known Exploited Vulnerabilities catalog on 2024-01-31, with a federal remediation due date of 2024-02-02. CISA lists it as used in ransomware campaigns.
How do I fix CVE-2024-21893?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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