CyberRota Analysis
AI-GeneratedCrowdSec versions 1.5.0 to 1.7.8 are vulnerable due to a flaw in the request handling that results in the skipping of WAF rules for HTTP/1.1 requests with chunked transfer encoding and HTTP/2 requests lacking a content-length header. This can lead to unfiltered malicious traffic bypassing security measures, significantly increasing the risk of successful attacks. Organizations using affected versions should prioritize upgrading to version 1.7.8 to mitigate potential exploitation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
CrowdSec offers crowdsourced protection against malicious IPs. From 1.5.0 until 1.7.8, pkg/appsec/request.go NewParsedRequestFromRequest allocated a request body buffer from max(r.ContentLength, 0), so HTTP/1.1 requests using Transfer-Encoding: chunked and HTTP/2 requests without a content-length header produced an empty body and caused WAF rules targeting REQUEST_BODY, BODY_ARGS, ARGS_POST, JSON, or XML to be skipped. This issue is fixed in version 1.7.8.