CVE-2023-29406 Explained : Impact and Mitigation
Learn about CVE-2023-29406 concerning the insufficient validation of Host header in net/http, impacting Go standard library versions. Find out how to mitigate this security vulnerability.
A detailed overview of CVE-2023-29406 focusing on the insufficient sanitization of the Host header in net/http.
Understanding CVE-2023-29406
This section delves into what CVE-2023-29406 entails and its impact on affected systems.
What is CVE-2023-29406?
The HTTP/1 client fails to fully validate the contents of the Host header, allowing a malicious Host header to inject additional headers or entire requests. The fix ensures the client rejects requests with invalid Request.Host or Request.URL.Host values.
The Impact of CVE-2023-29406
The vulnerability can be exploited to inject malicious content into requests, posing a serious risk to the integrity and security of affected systems.
Technical Details of CVE-2023-29406
Explore the specific details of the vulnerability, including affected systems, exploitation mechanism, and more.
Vulnerability Description
The Go standard library, specifically net/http, versions less than 1.19.11 and 1.20.6 are affected. Malicious Host headers can manipulate requests, potentially leading to severe security breaches.
Affected Systems and Versions
The net/http library versions 0 < 1.19.11 and 1.20.0-0 < 1.20.6 are vulnerable to this exploit, affecting various program routines and posing risks to system integrity.
Exploitation Mechanism
By sending crafted Host headers, malicious actors can inject headers or requests, exploiting the inadequate validation of the HTTP/1 client.
Mitigation and Prevention
Learn about the immediate steps to take and long-term security practices to safeguard systems against CVE-2023-29406.
Immediate Steps to Take
It is crucial to update affected libraries to versions above 1.19.11 or 1.20.6 to mitigate the risk of exploitation through the Host header vulnerability.
Long-Term Security Practices
In addition to immediate updates, ongoing security monitoring, regular patches, and adherence to secure coding practices are essential for mitigating similar vulnerabilities.
Patching and Updates
Regularly check for security updates and patches provided by Go to address CVE-2023-29406 and other potential vulnerabilities.