HTTP Response Splitting Affecting rmt-server package, versions <2.6.5-3.18.1
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Test your applications- Snyk ID SNYK-SLES151-RMTSERVER-2698697
- published 14 Apr 2022
- disclosed 5 Nov 2020
Introduced: 5 Nov 2020
CVE-2020-5247 Open this link in a new tabHow to fix?
Upgrade SLES:15.1 rmt-server to version 2.6.5-3.18.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rmt-server package and not the rmt-server package as distributed by SLES.
See How to fix? for SLES:15.1 relevant fixed versions and status.
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.
References
- https://www.suse.com/security/cve/CVE-2020-5247.html
- https://bugzilla.suse.com/1165402
- https://bugzilla.suse.com/1165524
- https://github.com/puma/puma/security/advisories/GHSA-84j7-475p-hp8v
- https://owasp.org/www-community/attacks/HTTP_Response_Splitting
- https://www.ruby-lang.org/en/news/2019/10/01/http-response-splitting-in-webrick-cve-2019-16254
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK/
- https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD/