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el injection

About this tag
The tag 'el injection' on WindowsForum.com covers security vulnerabilities involving Expression Language (EL) injection, particularly in Java-based enterprise applications. Recent discussions focus on Ivanti EPMM servers where attackers exploit CVE-2025-4427 and CVE-2025-4428 to inject malicious EL expressions via Tomcat listeners, leading to unauthenticated remote code execution, backdoor installation, and data exfiltration. The content highlights how EL injection enables reflective loading of Java components and HTTP-based backdoors, emphasizing the critical need for patching and monitoring in enterprise IT environments. This tag is relevant for security professionals and system administrators dealing with Java application servers and mobile device management systems.
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    Ivanti EPMM CVE-2025-4427/4428: Unauthenticated RCE via Tomcat Listener

    The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has analyzed malicious “listener” malware actively deployed against Ivanti Endpoint Manager Mobile (EPMM) servers following public proof-of-concept exploit code for CVE-2025-4427 and CVE-2025-4428, and the resulting toolset allows...
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    • cisa cve-2025-4427 cve-2025-4428 el injection incident response iocs ivanti epmm java loader listener mdm security patch rce reflectutil securityhandlerwanlistener sigma threat hunting tomcat webandroidappinstaller yara
    • Replies: 0
    • Forum: Security Alerts
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