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.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
8 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
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.
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.
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.
05 / REFERENCES
Further evidence
- 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
- https://github.com/ruby/webrick/commit/076ac636bf48b7a492887ce4de7041de23e6c00d
- https://github.com/ruby/webrick/commit/7618049fa57ddad2efff2a7bc7dad7d2d8a311b1
- https://github.com/ruby/webrick/commit/af2efdcdf826f25592202d187c53963e7932e4b9
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2020-25613.yml
- 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://lists.fedoraproject.org/archives/list/[email protected]/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
- https://lists.fedoraproject.org/archives/list/[email protected]/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
- https://nvd.nist.gov/vuln/detail/CVE-2020-25613
- https://security.netapp.com/advisory/ntap-20210115-0008
- https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613