CVE-2020-6811 Explained : Impact and Mitigation

A vulnerability in Mozilla products could allow for command injection and arbitrary command execution.

Understanding CVE-2020-6811

This CVE affects Thunderbird, Firefox, and Firefox ESR due to a flaw in the 'Copy as cURL' feature of Devtools.

What is CVE-2020-6811?

The vulnerability arises from improper escaping of the HTTP method in a request, controlled by the website, leading to potential command injection.

The Impact of CVE-2020-6811

Exploiting this vulnerability could result in arbitrary command execution, posing a significant security risk to affected systems.

Technical Details of CVE-2020-6811

The technical details shed light on the specific aspects of the vulnerability.

Vulnerability Description

The 'Copy as cURL' feature in Devtools did not properly escape website-controlled data, enabling command injection.

Affected Systems and Versions

Thunderbird < 68.6
Firefox < 74, Firefox < ESR68.6
Firefox ESR < 68.6

Exploitation Mechanism

The vulnerability allows attackers to inject and execute arbitrary commands by manipulating the HTTP method in a request.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2020-6811.

Immediate Steps to Take

Update affected Mozilla products to versions that address the vulnerability.
Avoid using the 'Copy as cURL' feature until the systems are patched.

Long-Term Security Practices

Regularly update software to the latest versions to prevent known vulnerabilities.
Educate users on safe browsing practices and potential security risks.

Patching and Updates

Apply patches provided by Mozilla to fix the vulnerability and enhance system security.