CVE-2020-26294 : Exploit Details and Defense Strategies

Vela is a Pipeline Automation (CI/CD) framework built on Linux container technology written in Golang. The vulnerability in Vela compiler before version 0.6.1 allows exposure of server configuration, impacting all users of Vela. An attacker can exploit this to retrieve configuration information. This CVE has a CVSS base score of 7.4 (High Severity).

Understanding CVE-2020-26294

Vela compiler before version 0.6.1 has a vulnerability that exposes server configuration, allowing attackers to retrieve sensitive information.

What is CVE-2020-26294?

This CVE refers to a vulnerability in the Vela compiler before version 0.6.1 that enables the exposure of server configuration, potentially leading to unauthorized access to sensitive data.

The Impact of CVE-2020-26294

The vulnerability poses a high severity risk with a CVSS base score of 7.4. It affects the confidentiality of data as attackers can access server configuration information.

Technical Details of CVE-2020-26294

Vulnerability details, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability in Vela compiler before version 0.6.1 allows attackers to expose server configuration, compromising the confidentiality of sensitive data.

Affected Systems and Versions

Product: Compiler
Vendor: go-vela
Versions Affected: < 0.6.1

Exploitation Mechanism

Attackers can exploit the vulnerability by using Sprig's

env

function to retrieve server configuration information.

Mitigation and Prevention

Steps to mitigate the vulnerability and prevent exploitation.

Immediate Steps to Take

Upgrade Vela compiler to version 0.6.1 or later.
Rotate all secrets to ensure security.

Long-Term Security Practices

Regularly update software and dependencies.
Implement access controls and least privilege principles.

Patching and Updates

Ensure timely installation of security patches and updates to prevent exploitation.