CVE-2021-3287 Scanner

Zoho ManageEngine OpManager is an integrated network management solution used by IT administrators across different sectors for monitoring network performance, bandwidth, and configuration. It provides comprehensive insights into a network and assists in keeping networks up and running efficiently. It is popular among medium to large enterprises for meticulous network auditing and analysis. The software is utilized to gain visibility into different network metrics, and quickly identify and resolve network issues before they lead to serious problems. IT professionals employ it to synchronize various network devices and assess network traffic effectively. Designed for scalable use, Zoho ManageEngine OpManager assists in managing networks efficiently through its user-friendly interface.

The Remote Code Execution (RCE) vulnerability in Zoho ManageEngine OpManager allows unauthenticated attackers to execute arbitrary code. This vulnerability arises due to improper deserialization handling, resulting in a comprehensive security compromise. The issue lies in older versions, where user inputs aren't securely processed, leading to remote code execution. Exploiting this vulnerability can lead to complete system control being handed to an unauthorized user. It primarily affects systems running versions of Zoho ManageEngine OpManager before 12.5.329. With the ease of access being low, this vulnerability poses a critical risk to the affected systems, demanding immediate attention and remediation.

Technically, the vulnerability stems from a general bypass in the deserialization class within the vulnerable versions of Zoho ManageEngine OpManager. The exploit leverages a flaw where the deserialization process doesn't adequately validate and sanitize inputs provided by the user or attacker. Vulnerable entries might include improperly checked input fields that can allow remote execution of code, which forms the basis for this security gap. The server processes these inputs, which can be manipulated by an attacker, leading to potential arbitrary code execution. The vulnerable endpoints allow attackers to execute payloads remotely and unauthorized, essentially exploiting system derstrability to cause harm.

The possible effects when this vulnerability is exploited include the full system being compromised, as unauthorized code can be run remotely. Attackers could gain complete control over the affected system, accessing sensitive data, or manipulating configurations maliciously. It also exposes the system to additional security breach vectors, given the compromised integrity of the application's code execution environment. Servers could be used to launch further attacks, increasing the scale of impact. Unauthorized access to critical network components might further compromise entire network operations, leading to severe operational disruptions. Consequently, securing network perimeters becomes critically challenging under such a compromise.

REFERENCES

• http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.html
• https://nvd.nist.gov/vuln/detail/CVE-2021-3287