Bug 1412698 (CVE-2017-0356)

Summary:	CVE-2017-0356 ikiwiki: Authentication bypass via repeated parameters
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	thomas.moschny
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	ikiwiki 3.20170111	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:05:29 UTC	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:	1406696, 1412702
Bug Blocks:

Description Andrej Nemec 2017-01-12 15:22:22 UTC

Security issues were discovered in the passwordauth plugin's use of CGI::FormBuilder, involving API design issues similar to those that led to CVE-2014-1572. Impact:

* An attacker who can log in to a site with a password can log in
  as a different and potentially more privileged user.
* An attacker who can create a new account can set arbitrary fields
  in the user database for that account.

Sites that enable the CGI script (cgi_wrapper) and do not disable the simple password authentication plugin (passwordauth, enabled by default) are affected.

References:

http://seclists.org/oss-sec/2017/q1/67
https://ikiwiki.info/security/#cve-2017-0356

Comment 1 Andrej Nemec 2017-01-12 15:25:11 UTC

Created ikiwiki tracking bugs for this issue:

Affects: fedora-all [bug 1412702]
Affects: epel-6 [bug 1406696]

Comment 2 Product Security DevOps Team 2019-06-08 03:05:29 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.