CVE-2020-10658 : Security Advisory and Response

Proofpoint Insider Threat Management Server (formerly ObserveIT Server) before 7.9.1 is vulnerable to remote code execution due to improper deserialization in the ITM application server's WriteImage API.

Understanding CVE-2020-10658

This CVE identifies a critical vulnerability in the Proofpoint Insider Threat Management Server that could allow an anonymous remote attacker to execute arbitrary code with local administrator privileges.

What is CVE-2020-10658?

The vulnerability in the ITM application server's WriteImage API of the Proofpoint Insider Threat Management Server allows attackers to exploit improper deserialization, leading to remote code execution.

The Impact of CVE-2020-10658

The vulnerability enables remote attackers to execute arbitrary code with local administrator privileges, potentially compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2020-10658

Proofpoint Insider Threat Management Server is affected by the following:

Vulnerability Description

The vulnerability lies in the ITM application server's WriteImage API, allowing for remote code execution due to improper deserialization.

Affected Systems and Versions

Product: Proofpoint Insider Threat Management Server (formerly ObserveIT Server)
Versions affected: Before 7.9.1

Exploitation Mechanism

Attackers can exploit the vulnerability by sending malicious requests to the WriteImage API, triggering improper deserialization and executing arbitrary code with local administrator privileges.

Mitigation and Prevention

To address CVE-2020-10658, consider the following steps:

Immediate Steps to Take

Update Proofpoint Insider Threat Management Server to version 7.9.1 or later to mitigate the vulnerability.
Monitor network traffic for any suspicious activity that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Implement strict access controls and least privilege principles to limit the impact of potential attacks.
Regularly audit and patch software to address security vulnerabilities and prevent future exploits.
Conduct security training for employees to raise awareness of social engineering tactics used in attacks.

Patching and Updates

Apply security patches and updates provided by Proofpoint to ensure the system is protected against known vulnerabilities.