CVE-2020-13661 Explained : Impact and Mitigation

Telerik Fiddler through 5.0.20202.18177 allows attackers to execute arbitrary programs via a hostname with a trailing space character, followed by specific parameters. The issue is fixed in version 5.0.20204.

Understanding CVE-2020-13661

Telerik Fiddler through 5.0.20202.18177 vulnerability allowing arbitrary program execution.

What is CVE-2020-13661?

This CVE refers to a security vulnerability in Telerik Fiddler that enables attackers to run unauthorized programs by manipulating the hostname and specific parameters.

The Impact of CVE-2020-13661

The vulnerability could lead to unauthorized execution of programs on the victim's system, potentially compromising sensitive data or causing system damage.

Technical Details of CVE-2020-13661

Telerik Fiddler through 5.0.20202.18177 vulnerability details.

Vulnerability Description

Attackers can exploit a hostname with a trailing space character and specific parameters to execute arbitrary programs. The victim must choose the Open On Browser option.

Affected Systems and Versions

Systems running Telerik Fiddler through version 5.0.20202.18177

Exploitation Mechanism

Attackers manipulate the hostname with a trailing space character and specific parameters to execute unauthorized programs.

Mitigation and Prevention

Steps to address CVE-2020-13661.

Immediate Steps to Take

Update Telerik Fiddler to version 5.0.20204 to mitigate the vulnerability.
Avoid interacting with suspicious or unknown hostnames.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Educate users on safe browsing practices and the risks of interacting with unknown sources.

Patching and Updates

Apply security patches and updates provided by Telerik to ensure system security.