Vulnerability Report

CVE-2020-25613

Title: Ruby WEBrick HTTP Request Smuggling

HTTP Request Smuggling

Proof Of Concept

PoC Available for CVE-2020-25613

CWE Category CWE-444
Published Date Oct 06, 2020
Modified Date Nov 21, 2024
Exploit Status Available
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
0.27%

Vulnerability Summary

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.

Impacted Vendors

R
ruby-lang 2
Y
yukihiro_matsumoto 1

Reference Links

https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7 https://hackerone.com/reports/965267 https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV/ https://security.gentoo.org/glsa/202401-27 https://security.netapp.com/advisory/ntap-20210115-0008/ https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613/ https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7 https://hackerone.com/reports/965267 https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV/ https://security.gentoo.org/glsa/202401-27 https://security.netapp.com/advisory/ntap-20210115-0008/ https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613/
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-25613 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/metapox/CVE-2020-25613
View Code
MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Stack

No specific products linked.