CVE-2023-30187 : Vulnerability Insights and Analysis

A vulnerability has been identified in ONLYOFFICE DocumentServer versions 4.0.3 through 7.3.2 that allows remote attackers to execute arbitrary code through a crafted JavaScript file.

Understanding CVE-2023-30187

This section provides an overview of the CVE-2023-30187 vulnerability.

What is CVE-2023-30187?

The CVE-2023-30187 is an out-of-bounds memory access vulnerability in ONLYOFFICE DocumentServer versions 4.0.3 through 7.3.2. Remote attackers can exploit this issue to run arbitrary code by using a specifically crafted JavaScript file.

The Impact of CVE-2023-30187

The impact of this vulnerability is severe as it allows attackers to execute malicious code on the affected systems, potentially leading to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2023-30187

In this section, we delve into the technical specifics of CVE-2023-30187.

Vulnerability Description

The vulnerability lies in the out-of-bounds memory access within ONLYOFFICE DocumentServer. This security flaw can be exploited by remote attackers leveraging a crafted JavaScript file.

Affected Systems and Versions

All versions of ONLYOFFICE DocumentServer from 4.0.3 to 7.3.2 are affected by this vulnerability. Users of these versions are at risk of exploitation by threat actors.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by sending a maliciously crafted JavaScript file to the vulnerable ONLYOFFICE DocumentServer, gaining the ability to execute arbitrary code with the privileges of the server.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent exploitation of CVE-2023-30187.

Immediate Steps to Take

Organizations using an affected version of ONLYOFFICE DocumentServer should update to a patched version immediately.
Implement network-level controls to restrict access to the DocumentServer to trusted entities.

Long-Term Security Practices

Regularly monitor for security advisories and updates from ONLYOFFICE.
Conduct periodic security audits to identify and remediate vulnerabilities in the infrastructure.

Patching and Updates

ONLYOFFICE has released patches to address the CVE-2023-30187 vulnerability. Users must apply these patches promptly to secure their systems.