Zero-Day: Navigating the Storm of CVE-2024–21893 in Ivanti Products

In the ever-evolving cybersecurity landscape, the discovery of new vulnerabilities serves as a constant reminder of the need for vigilance and proactive measures. The recent disclosure of CVE-2024–21893, a server-side request forgery (SSRF) vulnerability in Ivanti’s security products, underscores this point. This article aims to dissect CVE-2024–21893, explore its implications for cybersecurity professionals and Ivanti users, and provide actionable insights for mitigation.

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What is CVE-2024–21893?

CVE-2024–21893 is a critical SSRF vulnerability discovered in the SAML component of Ivanti Connect Secure, Ivanti Policy Secure, and Ivanti Neurons for Zero Trust Access (ZTA). With a CVSS v3 base score of 8.2, it poses a high security risk, allowing unauthenticated attackers to access restricted resource​.

The Impact

The vulnerability has been actively exploited, signaling an urgent call to action for entities utilizing affected Ivanti products. The exploitation of such vulnerabilities can lead to unauthorized data access, system compromise, and potentially, a breach of sensitive informatio​n.

How It Works

CVE-2024–21893 enables attackers to craft malicious server requests, potentially bypassing authentication to access or alter sensitive information without legitimate user credentials.

The technical breakdown of CVE-2024–21893 from the Rapid7 analysis indicates that this vulnerability is highly critical, particularly due to its potential for exploitation without requiring user interaction or privileges. The vulnerability affects multiple versions of Ivanti Connect Secure and Policy Secure, including both the 9.x and 22.x series. The analysis underscores the severity of this SSRF vulnerability in the SAML component, allowing attackers unauthenticated access to restricted resources.