CVE-2021-28588 : Security Advisory and Response

Adobe RoboHelp Server version 2019.0.9 and earlier is affected by a Path Traversal vulnerability that allows an authenticated attacker to execute arbitrary code remotely. This article provides insights into the impact, technical details, and mitigation steps for CVE-2021-28588.

Understanding CVE-2021-28588

This section delves into the overview of the CVE-2021-28588 vulnerability to help users understand the risks associated with it.

What is CVE-2021-28588?

CVE-2021-28588 is a Path Traversal vulnerability in Adobe RoboHelp Server versions 2019.0.9 and earlier. It occurs when handling malicious HTTP POST requests, enabling attackers to execute code remotely without user interaction.

The Impact of CVE-2021-28588

The vulnerability allows an authenticated attacker to achieve arbitrary code execution in the context of the current user. With a CVSS base score of 8.8, the impact is deemed high, affecting confidentiality, integrity, and availability of the system.

Technical Details of CVE-2021-28588

This section provides a detailed analysis of the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

Adobe RoboHelp Server is susceptible to a Path Traversal flaw that lets attackers traverse directories and execute code via crafted HTTP POST requests. The exploit poses significant risks to the system's security and integrity.

Affected Systems and Versions

Adobe RoboHelp Server versions 2019.0.9 and earlier are impacted by this vulnerability, exposing systems running these versions to potential remote code execution attacks.

Exploitation Mechanism

The CVE-2021-28588 vulnerability can be exploited by sending specially crafted HTTP POST requests to the affected server, enabling attackers to execute arbitrary code remotely without the need for user interaction.

Mitigation and Prevention

Protecting your systems from CVE-2021-28588 requires immediate action and ongoing security measures to safeguard against similar vulnerabilities in the future.

Immediate Steps to Take

Update Adobe RoboHelp Server to the latest patched version to mitigate the vulnerability.
Implement network security measures to restrict access and prevent unauthorized HTTP requests.

Long-Term Security Practices

Regularly monitor security advisories and apply patches promptly to address known vulnerabilities.
Conduct regular security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

Stay informed about security updates released by Adobe for RoboHelp Server. Regularly check for patches and apply them to ensure the system's security and integrity.