CVE-2021-41084

http4s is an open source scala interface for HTTP. In affected versions http4s is vulnerable to response-splitting or request-splitting attacks when untrusted user input is used to create any of the following fields: Header names (`Header.name`å), Header values (`Header.value`), Status reason phrases (`Status.reason`), URI paths (`Uri.Path`), URI authority registered names (`URI.RegName`) (through 0.21). This issue has been resolved in versions 0.21.30, 0.22.5, 0.23.4, and 1.0.0-M27 perform the following. As a matter of practice http4s services and client applications should sanitize any user input in the aforementioned fields before returning a request or response to the backend. The carriage return, newline, and null characters are the most threatening.

Link	Resource
https://httpwg.org/http-core/draft-ietf-httpbis-semantics-latest.html#fields.values	Vendor Advisory
https://github.com/http4s/http4s/commit/d02007db1da4f8f3df2dbf11f1db9ac7afc3f9d8	Patch Third Party Advisory
https://github.com/http4s/http4s/security/advisories/GHSA-5vcm-3xc3-w7x3	Exploit Third Party Advisory
https://owasp.org/www-community/attacks/HTTP_Response_Splitting	Third Party Advisory

Configuration 1

cpe:2.3:a:typelevel:http4s:1.0.0:milestone17:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone18:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone19:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone20:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone21:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone22:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone1:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone10:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone11:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone12:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone13:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone14:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone15:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone16:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone2:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone3:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone4:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone5:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone6:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone7:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone8:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone9:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone24:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone23:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone25:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:1.0.0:milestone26:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:*:*:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:*:*:*:*:*:*:*:* cpe:2.3:a:typelevel:http4s:*:*:*:*:*:*:*:*

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Published : 2021-09-21 06:15

Updated : 2022-10-25 02:56

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NVD link : CVE-2021-41084

Mitre link : CVE-2021-41084

No products.

CWE-113

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')