CVE-2021-30070 : What You Need to Know

The vulnerability in HestiaCP before v1.3.5 allows attackers to install packages by manipulating values in the update request.

Understanding CVE-2021-30070

This CVE identifies a security flaw in HestiaCP that enables threat actors to exploit a parameter in the update request to install packages without proper authorization.

What is CVE-2021-30070?

The issue discovered in HestiaCP before version 1.3.5 permits attackers to execute unauthorized package installations by using values from the 'pgk []' parameter.

The Impact of CVE-2021-30070

The vulnerability can lead to arbitrary installation of packages, posing a significant security risk to systems utilizing HestiaCP before the patched version.

Technical Details of CVE-2021-30070

This section provides technical insights into the CVE.

Vulnerability Description

The vulnerability arises due to inadequate input validation in HestiaCP, allowing attackers to exploit the 'pgk []' parameter during package installations.

Affected Systems and Versions

All instances of HestiaCP before version 1.3.5 are affected by this vulnerability, exposing them to potential package installation attacks.

Exploitation Mechanism

Threat actors can abuse the vulnerable 'pgk []' parameter in the update request to directly interact with the system's package manager and install packages at their discretion.

Mitigation and Prevention

Protecting systems from CVE-2021-30070 involves immediate actions and long-term security measures.

Immediate Steps to Take

Users should update HestiaCP to version 1.3.5 or higher to mitigate the vulnerability and prevent unauthorized package installations.

Long-Term Security Practices

Implement strict input validation mechanisms and regular security audits to identify and address similar vulnerabilities in the future.

Patching and Updates

Regularly check for security patches and updates provided by HestiaCP to ensure the system remains secure against known vulnerabilities.