CVE-2021-41084
HTTP4s Response/Request Splitting Vulnerability
Description
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.
INFO
Published Date :
Sept. 21, 2021, 6:15 p.m.
Last Modified :
Oct. 25, 2022, 2:56 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.8
Exploitability Score :
2.2
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-41084
.
URL | Resource |
---|---|
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://httpwg.org/http-core/draft-ietf-httpbis-semantics-latest.html#fields.values | Vendor Advisory |
https://owasp.org/www-community/attacks/HTTP_Response_Splitting | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-41084
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41084
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Oct. 25, 2022
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 06, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N Changed Reference Type https://github.com/http4s/http4s/commit/d02007db1da4f8f3df2dbf11f1db9ac7afc3f9d8 No Types Assigned https://github.com/http4s/http4s/commit/d02007db1da4f8f3df2dbf11f1db9ac7afc3f9d8 Patch, Third Party Advisory Changed Reference Type https://github.com/http4s/http4s/security/advisories/GHSA-5vcm-3xc3-w7x3 No Types Assigned https://github.com/http4s/http4s/security/advisories/GHSA-5vcm-3xc3-w7x3 Exploit, Third Party Advisory Changed Reference Type https://httpwg.org/http-core/draft-ietf-httpbis-semantics-latest.html#fields.values No Types Assigned https://httpwg.org/http-core/draft-ietf-httpbis-semantics-latest.html#fields.values Vendor 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 Added CWE NIST CWE-74 Added CPE Configuration OR *cpe:2.3:a:typelevel:http4s:*:*:*:*:*:*:*:* versions up to (excluding) 0.21.29 *cpe:2.3:a:typelevel:http4s:*:*:*:*:*:*:*:* versions from (including) 0.22.0 up to (excluding) 0.22.5 *cpe:2.3:a:typelevel:http4s:*:*:*:*:*:*:*:* versions from (including) 0.23.0 up to (excluding) 0.23.4 *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: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:milestone2:*:*:*:*:*:* *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:milestone23:*:*:*:*:*:* *cpe:2.3:a:typelevel:http4s:1.0.0:milestone24:*:*:*:*:*:* *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: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:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-41084
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-41084
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.16 }} 0.01%
score
0.52091
percentile