Vulnerability Database

300,214

Total vulnerabilities in the database

CVE-2020-25613

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.

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:P/A:N

CWEs:

Software From Fixed in
ruby-lang / ruby 2.6.0 2.6.6.x
ruby-lang / ruby 2.7.0 2.7.1.x
ruby-lang / ruby - 2.5.8.x
ruby-lang / webrick - 1.6.0.x
fedoraproject / fedora 32 32.x
fedoraproject / fedora 33 33.x
Ruby icon webrick - 1.6.1