HTTP Response Smuggling in Apache HTTP Server 2.4.30-2.4.55 via mod_proxy_uwsgi
CVE-2023-27522 Published on March 7, 2023
Apache HTTP Server: mod_proxy_uwsgi HTTP response splitting
HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.55.
Special characters in the origin response header can truncate/split the response forwarded to the client.
Vulnerability Analysis
CVE-2023-27522 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Timeline
Reported to security team
Weakness Type
What is a HTTP Request Smuggling Vulnerability?
When malformed or abnormal HTTP requests are interpreted by one or more entities in the data flow between the user and the web server, such as a proxy or firewall, they can be interpreted inconsistently, allowing the attacker to "smuggle" a request to one device without the other device being aware of it.
CVE-2023-27522 has been classified to as a HTTP Request Smuggling vulnerability or weakness.
Products Associated with CVE-2023-27522
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Affected Versions
Apache Software Foundation Apache HTTP Server:- Version 2.4.30, <= 2.4.55 is affected.
- Version 2.4.30, <= 2.4.55 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.