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CVE-2020-5249
Detail
Modified
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 4.3.3 and 3.12.4, if an application using Puma allows untrusted input in an early-hints header, an attacker can use a carriage return character 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-2020-5247, which fixed this vulnerability but only for regular responses. This has been fixed in 4.3.3 and 3.12.4.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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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
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:N/I:P/A:N)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Added
CWE
NIST CWE-74
Changed
Reference Type
https://github.com/puma/puma/commit/c22712fc93284a45a93f9ad7023888f3a65524f3 No Types Assigned
https://github.com/puma/puma/commit/c22712fc93284a45a93f9ad7023888f3a65524f3 Patch, Third Party Advisory
Changed
Reference Type
https://github.com/puma/puma/security/advisories/GHSA-33vf-4xgg-9r58 No Types Assigned
https://github.com/puma/puma/security/advisories/GHSA-33vf-4xgg-9r58 Third Party Advisory
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 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
Quick Info
CVE Dictionary Entry: CVE-2020-5249 NVD
Published Date: 03/02/2020 NVD
Last Modified: 11/06/2023
Source: GitHub, Inc.