CVE-2020-35884 : Exploit Details and Defense Strategies

An issue was discovered in the tiny_http crate through 2020-06-16 for Rust. HTTP Request smuggling can occur via a malformed Transfer-Encoding header.

Understanding CVE-2020-35884

This CVE involves a vulnerability in the tiny_http crate for Rust that could lead to HTTP Request smuggling through a specific header manipulation.

What is CVE-2020-35884?

CVE-2020-35884 is a security vulnerability found in the tiny_http crate for Rust, allowing HTTP Request smuggling via a malformed Transfer-Encoding header.

The Impact of CVE-2020-35884

This vulnerability could be exploited by attackers to manipulate Transfer-Encoding headers, potentially leading to HTTP Request smuggling attacks.

Technical Details of CVE-2020-35884

The technical aspects of this CVE include:

Vulnerability Description

Vulnerability in the tiny_http crate for Rust
Allows HTTP Request smuggling via a malformed Transfer-Encoding header

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the Transfer-Encoding header, leading to HTTP Request smuggling.

Mitigation and Prevention

To address CVE-2020-35884, consider the following:

Immediate Steps to Take

Update the tiny_http crate to the latest version
Monitor and filter incoming requests for suspicious headers

Long-Term Security Practices

Regularly review and update dependencies in your projects
Implement secure coding practices to prevent header manipulation attacks

Patching and Updates

Apply patches and updates provided by the Rust community to fix the vulnerability.