EUVD-2025-21302CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Tags
Description
The iSherlock developed by Hgiga has an OS Command Injection vulnerability, allowing unauthenticated remote attackers to inject arbitrary OS commands and execute them on the server. This vulnerability has already been exploited. Please update immediately.
Analysis
CVE-2025-7451 is a critical OS Command Injection vulnerability in iSherlock (developed by Hgiga) that allows unauthenticated remote attackers to execute arbitrary operating system commands on vulnerable servers with no authentication required. The vulnerability has active in-the-wild exploitation, carries a maximum CVSS score of 9.8, and poses immediate risk to all exposed instances. Organizations running iSherlock must apply patches immediately.
Technical Context
This vulnerability exploits improper input validation in iSherlock's command processing functionality, classified under CWE-78 (Improper Neutralization of Special Elements used in an OS Command). The root cause stems from insufficient sanitization of user-supplied input before passing it to OS command execution functions. iSherlock, developed by Hgiga, appears to be a security or monitoring application that processes user commands; the lack of proper escaping or parameterized execution allows attackers to inject shell metacharacters and arbitrary commands. This is a classic OS command injection flaw where user input is directly concatenated into system calls without proper validation, filtering, or use of safe APIs that would prevent command interpretation.
Affected Products
iSherlock developed by Hgiga—specific version information is not provided in the available data; assume all versions are vulnerable unless patched. CPE information is not available in provided references. Recommended action: contact Hgiga directly or check official advisories for version-specific impact assessment (e.g., CPE:2.3:a:hgiga:isherlock:*:*:*:*:*:*:*:*). Any internet-exposed instance of iSherlock should be treated as potentially compromised and requires immediate patching or isolation.
Remediation
1. **Immediate Actions**: Isolate or remove iSherlock from network exposure until patched; block external access via firewall rules; implement network-level IDS/IPS signatures for CVE-2025-7451 exploitation attempts. 2. **Patch Availability**: Contact Hgiga directly for patch availability and version-specific updates (specific patch versions not provided in available references; vendor advisory must be obtained from Hgiga's official security channel). 3. **Workarounds**: If patching is delayed, implement strict input validation/WAF rules to block OS command metacharacters (|, &, ;, $, `, >, <, \n, etc.) in all user inputs; run iSherlock with minimal OS privileges; use OS-level command execution restrictions (e.g., seccomp, AppArmor, SELinux) to limit damage. 4. **Detection**: Hunt for exploitation indicators in logs—unusual command execution patterns, unexpected process spawning, or HTTP/API requests containing shell metacharacters.
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External POC / Exploit Code
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