Rule: -- Sid: 2393 -- Summary: This event is generated when an attempt is made to access the /_admin directory. -- Impact: Unauthorized file upload or information gathering. This can allow an attacker to upload unauthorized files to the web server or information disclosure. -- Detailed Information: A vulnerability exists in the jbrowser web-based image gallery software that allows unchecked access to the _admin directory, possibly permitting an attacker to execute scripts found in this directory. Execution of admin scripts upload.php3 and upload_ftp.php3 may allow the attacker to upload malicious files to the server or replace existing files. Execution of the list_all.php script may allow an attacker to display files in directories, including those not in the web server root directory. -- Affected Systems: Not reported. -- Attack Scenarios: An attacker can craft a URL to execute the upload.php3, upload_ftp.php3, and list_all.php scripts to upload files or examine files on the vulnerable server. -- Ease of Attack: Simple. -- False Positives: None Known. -- False Negatives: None Known. -- Corrective Action: Restrict access to the '_admin' directory to authorized users only. -- Contributors: Sourcefire Research Team Judy Novak -- Additional References: bugtraq http://www.securityfocus.com/bid/9537 nessus: http://cgi.nessus.org/plugins/dump.php3?id=12032 --