CVE-2022-1705 : What You Need to Know
Learn about CVE-2022-1705, an HTTP request smuggling vulnerability in Go's net/http package allowing for security bypass. Find mitigation steps and version updates.
This article provides detailed information about CVE-2022-1705, which involves the improper sanitization of Transfer-Encoding headers in the net/http package of the Go standard library.
Understanding CVE-2022-1705
CVE-2022-1705 highlights a vulnerability in the HTTP/1 client in net/http before versions 1.17.12 and 1.18.4 of Go. It allows for HTTP request smuggling if combined with an intermediate server that fails to reject the header as invalid.
What is CVE-2022-1705?
The CVE-2022-1705 vulnerability arises from the acceptance of certain invalid Transfer-Encoding headers in the net/http package before specific versions of Go, potentially leading to HTTP request smuggling when interacting with inadequately configured servers.
The Impact of CVE-2022-1705
Exploitation of this vulnerability could result in HTTP request smuggling attacks, enabling malicious actors to bypass security controls, gain unauthorized access to sensitive data, or manipulate server responses.
Technical Details of CVE-2022-1705
CVE-2022-1705 involves:
Vulnerability Description
The vulnerability stems from improper sanitization of Transfer-Encoding headers in the net/http package, allowing for the acceptance of invalid headers, which could be exploited for HTTP request smuggling.
Affected Systems and Versions
The vulnerability affects versions of the net/http package in Go before 1.17.12 and 1.18.4.
Exploitation Mechanism
Exploiting CVE-2022-1705 requires sending crafted HTTP requests with specific Transfer-Encoding headers to bypass security mechanisms and perform request smuggling.
Mitigation and Prevention
To address CVE-2022-1705, consider the following:
Immediate Steps to Take
Update the Go programming language to versions 1.17.12 or 1.18.4 to mitigate the vulnerability. Review and adjust server configurations to reject invalid Transfer-Encoding headers.
Long-Term Security Practices
Implement secure coding practices, perform regular security reviews, and stay informed about security updates and best practices within the Go community.
Patching and Updates
Regularly monitor for security advisories and apply patches promptly to ensure the security of Go applications.