Bug 2036051 (CVE-2021-23772)

Summary:	CVE-2021-23772 kataras/iris: unsafe handling of file names during upload using UploadFormFiles method may allow attackers to write to arbitrary locations outside the designated target folder
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	caswilli, gparvin, kaycoth, njean, pahickey, stcannon
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	iris-12.2.0-alpha8	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Iris Web Framework, where the UploadFormFiles method unsafely handles file names during upload. This flaw allows an attacker to write in arbitrary locations outside the designated target folder.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2043241
Bug Blocks:	2036052

Description Guilherme de Almeida Suckevicz 2021-12-29 13:42:52 UTC

This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder.

References:
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRIS-2325169
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRISV12-2325170

Upstream patch:
https://github.com/kataras/iris/commit/e213dba0d32ff66653e0ef124bc5088817264b08

Comment 1 lnacshon 2021-12-29 14:51:19 UTC

The following services are using iris-v12 as stated the version v12 is affected and a patch published