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2 vulnerabilities found for WEBrick by Ruby
CVE-2025-6442 (GCVE-0-2025-6442)
Vulnerability from nvd – Published: 2025-06-25 16:52 – Updated: 2025-06-25 20:42
VLAI
Title
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability
Summary
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability. This vulnerability allows remote attackers to smuggle arbitrary HTTP requests on affected installations of Ruby WEBrick. This issue is exploitable when the product is deployed behind an HTTP proxy that fulfills specific conditions.
The specific flaw exists within the read_headers method. The issue results from the inconsistent parsing of terminators of HTTP headers. An attacker can leverage this vulnerability to smuggle arbitrary HTTP requests. Was ZDI-CAN-21876.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
| https://github.com/ruby/webrick/commit/ee60354bcb… | vendor-advisory |
Date Public
2025-06-23 14:00
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CVE-2025-6442 (GCVE-0-2025-6442)
Vulnerability from cvelistv5 – Published: 2025-06-25 16:52 – Updated: 2025-06-25 20:42
VLAI
Title
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability
Summary
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability. This vulnerability allows remote attackers to smuggle arbitrary HTTP requests on affected installations of Ruby WEBrick. This issue is exploitable when the product is deployed behind an HTTP proxy that fulfills specific conditions.
The specific flaw exists within the read_headers method. The issue results from the inconsistent parsing of terminators of HTTP headers. An attacker can leverage this vulnerability to smuggle arbitrary HTTP requests. Was ZDI-CAN-21876.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
| https://github.com/ruby/webrick/commit/ee60354bcb… | vendor-advisory |
Date Public
2025-06-23 14:00
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