CVE-2022-29188 : Security Advisory and Response
Learn about CVE-2022-29188 impacting Smokescreen HTTP proxy versions < 0.0.4, enabling SSRF attacks through a deny list bypass. Find mitigation steps and update recommendations.
A detailed overview of the vulnerability in Smokescreen affecting versions below 0.0.4.
Understanding CVE-2022-29188
This CVE involves a vulnerability in Smokescreen that enables SSRF through a bypass technique involving square brackets.
What is CVE-2022-29188?
Smokescreen, an HTTP proxy, was impacted by a vulnerability that allowed attackers to bypass the deny list feature through the use of square brackets in hostnames.
The Impact of CVE-2022-29188
The vulnerability in Smokescreen could lead to SSRF attacks, providing unauthorized access to internal infrastructure and potentially exposing sensitive data.
Technical Details of CVE-2022-29188
Details regarding the vulnerability, affected systems, and exploitation mechanism.
Vulnerability Description
The issue in Smokescreen allowed for the bypass of the deny list feature using square brackets, affecting the HTTP proxy functionality only.
Affected Systems and Versions
Smokescreen versions prior to 0.0.4 are vulnerable to this SSRF bypass vulnerability.
Exploitation Mechanism
Attackers could exploit this vulnerability by manipulating hostnames with square brackets, enabling SSRF attacks.
Mitigation and Prevention
Recommendations to mitigate the risk and prevent exploitation of the CVE.
Immediate Steps to Take
Users are advised to update Smokescreen to version 0.0.4 or later to address the vulnerability and prevent SSRF bypass.
Long-Term Security Practices
Implement strict input validation, secure coding practices, and regular security audits to avoid similar vulnerabilities.
Patching and Updates
Regularly check for security patches and updates for vulnerable software to maintain a secure environment.