CVE-2019-10842 : Vulnerability Insights and Analysis

A vulnerability in bootstrap-sass 3.2.0.3 allows for arbitrary code execution through a backdoor code manipulation of the ___cfduid cookie.

Understanding CVE-2019-10842

This CVE involves a security issue in bootstrap-sass that enables unauthorized attackers to execute arbitrary code on a system.

What is CVE-2019-10842?

The vulnerability in bootstrap-sass 3.2.0.3 permits attackers to manipulate the ___cfduid cookie value with base64 arbitrary code, leading to code execution through eval().

The Impact of CVE-2019-10842

Unauthorized attackers can run any desired code on the targeted system.
The presence of three underscore characters in the cookie name distinguishes it from the legitimate __cfduid cookie used by Cloudflare.

Technical Details of CVE-2019-10842

This section provides more technical insights into the vulnerability.

Vulnerability Description

Arbitrary code execution (via backdoor code) was discovered in bootstrap-sass 3.2.0.3, downloaded from rubygems.org.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: n/a

Exploitation Mechanism

Attackers can craft the ___cfduid cookie value with base64 arbitrary code to be executed via eval().

Mitigation and Prevention

Protecting systems from this vulnerability is crucial.

Immediate Steps to Take

Update bootstrap-sass to a secure version.
Monitor and restrict cookie manipulation.
Implement input validation to prevent code injection.

Long-Term Security Practices

Regular security audits and code reviews.
Educate users on safe browsing practices.

Patching and Updates

Stay informed about security patches and updates for bootstrap-sass.