A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read HTTP2 frames from the connection, it will instead be reading the body of the HTTP request, which could be attacker-manipulated to represent arbitrary HTTP2 requests.
CVE-2022-41721 - High Severity Vulnerability
[mirror] Go supplementary network libraries
Dependency Hierarchy: - :x: **github.com/golang/net/http2-v0.1.0** (Vulnerable Library)
Found in HEAD commit: 4ec0c406a28f193fe6e7376ee7696cca0532d4ba
Found in base branch: master
A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read HTTP2 frames from the connection, it will instead be reading the body of the HTTP request, which could be attacker-manipulated to represent arbitrary HTTP2 requests.
Publish Date: 2023-01-13
URL: CVE-2022-41721
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Release Date: 2023-01-13
Fix Resolution: v0.2.0
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