Ruby WEBrick read_headers method can lead to HTTP Request/Response Smuggling
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.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2025-6442US | medium5.9 | — | ||
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability. This vulnerability allows remote attackers to smuggle arbitrary HTTP requests on affected installations of Ruby WEBri… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/ruby/webrickPACKAGE
- https://github.com/ruby/webrick/commit/ee60354bcb84ec33b9245e1d1aa6e1f7e8132101#diff-ad02984d873efb089aa51551bc6b7d307a53e0ba1ac439e91d69c2e58a478864WEB
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2025-6442.ymlWEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-6442ADVISORY
- https://www.zerodayinitiative.com/advisories/ZDI-25-414WEB
Advisories wie diese benennen die exponierten Produkte, die Angreifer auf Ihrer Angriffsfläche ins Visier nehmen. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan