CVE-2026-24936 in ADM
Summary
by MITRE • 02/03/2026
When a specific function is enabled while joining a AD Domain from ADM, an improper input parameters validation vulnerability in a specific CGI program allowing an unauthenticated remote attacker to write arbitrary data to any file on the system. By exploiting this vulnerability, attackers can overwrite critical system files, leading to a complete system compromise. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.
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Analysis
by VulDB Data Team • 02/19/2026
This vulnerability represents a critical security flaw in the Active Directory Management (ADM) system that stems from inadequate input validation within a specific CGI program. The vulnerability exists when a particular function is enabled during the Active Directory domain joining process, creating an exploitable condition that allows unauthenticated remote attackers to manipulate file system operations. The technical implementation of this flaw involves improper parameter validation that permits arbitrary data writing to any file location on the target system, fundamentally undermining the security model of the affected platform. This represents a classic case of insufficient input sanitization that directly maps to CWE-20, which covers "Improper Input Validation" in the Common Weakness Enumeration catalog.
The operational impact of this vulnerability extends far beyond simple data corruption, as it enables complete system compromise through the ability to overwrite critical system files. Attackers can leverage this weakness to modify essential system components, potentially gaining persistent access or disrupting core system functionality. The vulnerability's remote exploitation capability means that attackers do not require physical access or prior authentication credentials to exploit the flaw, significantly expanding the attack surface. This aligns with ATT&CK technique T1059.007 for "Command and Scripting Interpreter: PowerShell" and T1486 for "Data Encrypted for Ransom" when considering the potential for malicious file overwrites that could lead to system-wide compromise.
The affected product versions span across multiple release branches of ADM, specifically from version 4.1.0 through 4.3.3.ROF1 and from 5.0.0 through 5.1.1.RCI1, indicating this is a long-standing issue that persisted across several major releases. This widespread impact suggests the vulnerability was not properly addressed in the codebase and likely involves fundamental architectural issues rather than isolated coding errors. Organizations running these affected versions face significant risk, as the vulnerability could be exploited by threat actors without requiring any specialized knowledge or access credentials. The CGI program's failure to properly validate user-supplied parameters creates a direct path for attackers to manipulate file system operations, potentially allowing for privilege escalation or complete system takeover.
Mitigation strategies should focus on immediate patching of affected systems, as this vulnerability represents a critical threat level that requires urgent attention. Organizations should also implement network segmentation to limit access to affected systems and monitor for suspicious file system activities that might indicate exploitation attempts. Additional protective measures include disabling the vulnerable function when not required and implementing strict input validation controls at multiple layers of the application architecture. Security teams should also conduct comprehensive vulnerability assessments to identify any potential exploitation attempts and establish incident response procedures specifically addressing this class of file system manipulation vulnerabilities. The remediation approach must address both the immediate exploitation vector and the underlying architectural weakness that enabled the vulnerability in the first place.