This JSP shell provides the attacker with various functions to compromise a target system. These functions include connecting to an Oracle database and executing queries. An attacker can execute OS and OracleDB commands via an HTTP request. The parameters needed to create a successful request can be present in both the URI and HTTP client body.
- An attacker uploads a JSP shell to a target server via a vulnerability or misconfigured application.
- The server responds indicating a successful upload.
- The attacker acts upon objectives by utilizing the shell’s functionality.
The attacker must have exploited some other entry vector to allow the malicious files to become resident on the victim server.
Alert Logic Coverage
Alert Logic® has evaluated its customer base for exposure to the exploit and has developed signatures for mitigating the threat depending on the security service in place.
The Network-Based Intrusion Detection System (IDS) has been updated with the new signatures for this exploit when detected via Alert Logic Threat Manager™. If this signature is detected, an incident is generated in the Alert Logic console.
Recommendations for Mitigation
Ensure that all public internet-facing hosts have available patches applied and are sufficiently hardened for public access.