CVE-2020-28653 Scanner

ManageEngine OpManager is a comprehensive network management software that offers network performance monitoring, server monitoring, virtualization monitoring, and more. It is primarily used by IT administrators and network operations teams to ensure the smooth functioning of organizational networks. The tool helps in managing routers, switches, firewalls, and other network components, providing visibility into various network parameters. It is widely used by businesses to proactively identify network issues and act promptly to resolve them. Offering an easy-to-use interface, it simplifies complex networking tasks for professionals. ManageEngine OpManager is pivotal in maintaining the performance and availability of critical network infrastructure.

Java Deserialization vulnerability refers to a security flaw that arises when untrusted data is processed by the Java deserialization mechanism, leading to remote code execution. The vulnerability allows attackers to send maliciously crafted serialized objects to the vulnerable application. When deserialized, these objects can execute arbitrary code in the context of the application. This can result in unauthorized control or access to the affected system, potentially leading to significant security breaches. The Java Deserialization vulnerability poses a critical risk as it enables remote attackers to compromise vulnerable systems with minimal interaction. Proper mitigation measures are necessary to safeguard affected applications from exploitation.

This vulnerability exploits the Smart Update Manager (SUM) servlet in affected ManageEngine OpManager versions, allowing remote attackers to execute arbitrary code. By sending crafted serialized objects to the servlet, attackers can exploit unsafe deserialization processes. Specifically, endpoints like `/servlets/com.adventnet.tools.sum.transport.SUMCommunicationServlet` are targeted. Parameters that handle serialized objects, such as headers and payloads, become vectors for attack when improperly handled. Vulnerable versions lack sufficient checks to handle deserialized objects securely, allowing execution of injected commands. Successful exploitation requires minimal privileges and no user interaction, making this vulnerability highly critical.

Exploitation of the Java Deserialization vulnerability within ManageEngine OpManager could lead to severe security consequences. Attackers may gain remote access to execute arbitrary code, potentially leading to full system compromise. This could allow unauthorized access to sensitive data, alteration of system configurations, or deployment of malicious payloads. The integrity, confidentiality, and availability of the affected system can be significantly impacted, resulting in data breaches and operational disruptions. Additionally, exploitation without adequate mitigations allows attackers to persist in the environment undetected.

REFERENCES

• http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.html