CVEvulnerability

CVE-2020-25613

7.5 HIGH Published 2020-10-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-10-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-444

Description

An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.

Affected configurations

• ruby-lang ruby (<= 2.5.8) • ruby-lang ruby (>= 2.6.0 <= 2.6.6) • ruby-lang ruby (>= 2.7.0 <= 2.7.1) • ruby-lang webrick (<= 1.6.0) • fedoraproject fedora 32 • fedoraproject fedora 33

Related

Weakness · CWE (1)

  • CWE-444 Inconsistent Interpretation of HTTP Requests weakness

References