Bug 1395311 – CVE-2016-9575 ipa: Insufficient permission check in certprofile-mod

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Bug 1395311 - (CVE-2016-9575) CVE-2016-9575 ipa: Insufficient permission check in certprofile-mod

Summary:	CVE-2016-9575 ipa: Insufficient permission check in certprofile-mod

Status:	CLOSED ERRATA

Aliases:	CVE-2016-9575

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20161214,repor...
Keywords:	Security

Depends On:	1402810 1402811 1404718
Blocks:	1395316
	Show dependency tree / graph

Reported:	2016-11-15 11:23 EST by Adam Mariš
Modified:	2018-03-13 16:21 EDT (History)
CC List:	6 users (show)

See Also:
Fixed In Version:	ipa 4.3.3, ipa 4.4.3
Doc Type:	If docs needed, set a value
Doc Text:	It was found that IdM's certprofile-mod command did not properly check the user's permissions while modifying certificate profiles. An authenticated, unprivileged attacker could use this flaw to modify profiles to issue certificates with arbitrary naming or key usage information and subsequently use such certificates for other attacks.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-01-02 06:49:09 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
master, ipa-4-4, ipa-4-3, ipa-4-2 patch (1.73 KB, patch) 2016-11-15 11:25 EST, Adam Mariš	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:0001	normal	SHIPPED_LIVE	Moderate: ipa security update	2017-01-02 10:54:30 EST

Groups: None (edit)

Description Adam Mariš 2016-11-15 11:23:34 EST

Due to a missing permission check, certprofile-mod can be used by an authenticated but unprivileged user to modify certificate profile configuration. This could allow the issuance of certificates with fraudulent subject naming information (allowing the holder of the private key to impersonate another entity), or inappropriate key usage or extended key usage information (use of certificate for unauthorised purposes e.g. code signing).

Affected versions : 4.2 and above (all versions supporting certificate profiles)

Upstream patch :
https://git.fedorahosted.org/cgit/freeipa.git/commit/?id=fec4c32ff15a96736740cf7d2f713a21af0b227e

Comment 1 Adam Mariš 2016-11-15 11:25 EST

Created attachment 1220871 [details]
master, ipa-4-4, ipa-4-3, ipa-4-2 patch

Comment 2 Fraser Tweedale 2016-11-15 20:09:51 EST

Credit for discovery goes to Liam Campbell (Red Hat).

Comment 3 Adam Mariš 2016-11-16 04:25:35 EST

Acknowledgments:

Name: Liam Campbell (Red Hat)

Comment 4 Adam Mariš 2016-11-23 09:28:05 EST

Comment on attachment 1220871 [details]
master, ipa-4-4, ipa-4-3, ipa-4-2 patch

For ipa-4-3 and ipa-4-2, following change is needed:

ipaserver/plugins/certprofile.py => ipalib/plugins/certprofile.py

Comment 12 Cedric Buissart 2016-12-14 08:39:29 EST

Created freeipa tracking bugs for this issue:

Affects: fedora-all [bug 1404718]

Comment 13 errata-xmlrpc 2017-01-02 05:54:50 EST

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:0001 https://rhn.redhat.com/errata/RHSA-2017-0001.html

Comment 14 Tomas Hoger 2018-03-13 16:21:17 EDT

Fixed upstream in FreeIPA 4.4.3 and 4.3.3:

https://www.freeipa.org/page/Releases/4.4.3
https://www.freeipa.org/page/Releases/4.3.3

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