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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
In Puma (RubyGem) before 4.3.2 and before 3.12.3, if an application using Puma allows untrusted input in a response header, an attacker can use newline characters (i.e. `CR`, `LF` or`/r`, `/n`) to end the header and inject malicious content, such as additional headers or an entirely new response body. This vulnerability is known as HTTP Response Splitting. While not an attack in itself, response splitting is a vector for several other attacks, such as cross-site scripting (XSS). This is related to CVE-2019-16254, which fixed this vulnerability for the WEBrick Ruby web server. This has been fixed in versions 4.3.2 and 3.12.3 by checking all headers for line endings and rejecting headers with those characters.
Metrics
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CVE Modified by GitHub, Inc.11/06/2023 10:23:43 PM
Action
Type
Old Value
New Value
Added
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK/ [No types assigned]
Added
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK/ [No types assigned]
Added
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD/ [No types assigned]
Removed
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK/
Removed
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK/
Removed
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD/
Modified Analysis by NIST10/12/2022 9:35:37 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Changed
Reference Type
https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html No Types Assigned
https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html Mailing List, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK/ Mailing List, Patch, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK/ Mailing List, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD/ Mailing List, Third Party Advisory
OR
*cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* versions up to (including) 3.12.3
*cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* versions from (including) 4.0.0 up to (including) 4.3.2
*cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions up to (including) 2.3.0
*cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 2.4.0 up to (including) 2.4.7
*cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 2.5.0 up to (including) 2.5.6
*cpe:2.3:a:ruby-lang:ruby:
Changed
Reference Type
https://github.com/puma/puma/security/advisories/GHSA-84j7-475p-hp8v No Types Assigned
https://github.com/puma/puma/security/advisories/GHSA-84j7-475p-hp8v Mitigation, Third Party Advisory
Changed
Reference Type
https://owasp.org/www-community/attacks/HTTP_Response_Splitting No Types Assigned
https://owasp.org/www-community/attacks/HTTP_Response_Splitting Third Party Advisory
Changed
Reference Type
https://www.ruby-lang.org/en/news/2019/10/01/http-response-splitting-in-webrick-cve-2019-16254 No Types Assigned
In Puma (RubyGem) before 4.3.2 and 3.12.2, if an application using Puma allows untrusted input in a response header, an attacker can use newline characters (i.e. `CR`, `LF` or`/r`, `/n`) to end the header and inject malicious content, such as additional headers or an entirely new response body. This vulnerability is known as HTTP Response Splitting. While not an attack in itself, response splitting is a vector for several other attacks, such as cross-site scripting (XSS). This is related to CVE-
In Puma (RubyGem) before 4.3.2 and before 3.12.3, if an application using Puma allows untrusted input in a response header, an attacker can use newline characters (i.e. `CR`, `LF` or`/r`, `/n`) to end the header and inject malicious content, such as additional headers or an entirely new response body. This vulnerability is known as HTTP Response Splitting. While not an attack in itself, response splitting is a vector for several other attacks, such as cross-site scripting (XSS). This is related
Quick Info
CVE Dictionary Entry: CVE-2020-5247 NVD
Published Date: 02/28/2020 NVD
Last Modified: 11/21/2024
Source: GitHub, Inc.
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