CVE-2023-27522 : Vulnerability Insights and Analysis
Learn about CVE-2023-27522, a vulnerability in Apache HTTP Server versions 2.4.30 through 2.4.55 via mod_proxy_uwsgi allowing HTTP response manipulation.
This CVE involves an HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi.
Understanding CVE-2023-27522
This vulnerability affects Apache HTTP Server versions from 2.4.30 through 2.4.55, allowing special characters in the origin response header to truncate or split the response forwarded to the client.
What is CVE-2023-27522?
CVE-2023-27522 is classified under CWE-444, which pertains to the Inconsistent Interpretation of HTTP Responses, specifically 'HTTP Response Smuggling'.
The Impact of CVE-2023-27522
The impact of this vulnerability lies in the manipulation of HTTP responses, potentially leading to security issues such as data leakage or injection attacks.
Technical Details of CVE-2023-27522
This section outlines the specific technical aspects of the vulnerability.
Vulnerability Description
The vulnerability allows attackers to manipulate HTTP response headers, leading to response truncation or splitting when forwarded to clients.
Affected Systems and Versions
The vulnerability affects Apache HTTP Server versions 2.4.30 through 2.4.55 when using mod_proxy_uwsgi.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting special characters into the origin response header, interfering with the response forwarded to clients.
Mitigation and Prevention
To address CVE-2023-27522, immediate steps and long-term security practices are crucial.
Immediate Steps to Take
Immediate mitigation measures include applying patches provided by Apache Software Foundation or implementing appropriate configurations to prevent response manipulation.
Long-Term Security Practices
Ensure regular security updates, monitor for any abnormal HTTP responses, and follow secure coding practices to mitigate similar vulnerabilities in the future.
Patching and Updates
Stay informed about security advisories from Apache Software Foundation and promptly apply patches or updates to secure Apache HTTP Server against known vulnerabilities.