Narcissus backend.php Image Configuration Command Injection
Vulnerability Description
Narcissus is vulnerable to remote code execution via improper input handling in its image configuration workflow. Specifically, the backend.php script fails to sanitize the release parameter before passing it to the configure_image() function. This function invokes PHP’s passthru() with the unsanitized input, allowing attackers to inject arbitrary system commands. Exploitation occurs via a crafted POST request, resulting in command execution under the web server’s context.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Dun
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/narcissus_backend_exec.rb
- https://www.exploit-db.com/exploits/22709
- https://www.exploit-db.com/exploits/22856
- https://web.archive.org/web/20101127002623/https://narcissus.angstrom-distribution.org/
- https://www.vulncheck.com/advisories/narcissus-image-config-command-injection
Affected Vendor
Ångström Distribution Project
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