Bug 1123477 – CVE-2014-3562 389-ds: unauthenticated information disclosure

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Bug 1123477 - (CVE-2014-3562) CVE-2014-3562 389-ds: unauthenticated information disclosure

Summary:	CVE-2014-3562 389-ds: unauthenticated information disclosure

Status:	CLOSED ERRATA

Aliases:	CVE-2014-3562

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

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

URL:
Whiteboard:	impact=important,public=20140807,repo...
Keywords:	Security

Depends On:	1123861 1123863 1123864 1123865 1123866 1127833 1127834
Blocks:	1123480
	Show dependency tree / graph

Reported:	2014-07-25 15:22 EDT by Vincent Danen
Modified:	2015-08-19 04:35 EDT (History)
CC List:	8 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:	It was found that when replication was enabled for each attribute in Red Hat Directory Server / 389 Directory Server, which is the default configuration, the server returned replicated metadata when the directory was searched while debugging was enabled. A remote attacker could use this flaw to disclose potentially sensitive information.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2014-08-07 14:44:12 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
patch to correct the flaw (3.72 KB, patch) 2014-07-25 15:23 EDT, Vincent Danen	rmeggins: review+	Details \| Diff
schema and aci change for workaround (370 bytes, text/x-ldif) 2014-07-28 03:31 EDT, Ludwig	no flags	Details
Updated the Ludwig's patch following the review comments by Rich. (3.97 KB, patch) 2014-07-28 12:49 EDT, Noriko Hosoi	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-2014:1031	normal	SHIPPED_LIVE	Important: 389-ds-base security update	2014-08-07 18:23:38 EDT
Red Hat Product Errata	RHSA-2014:1032	normal	SHIPPED_LIVE	Important: redhat-ds-base security update	2014-08-07 16:42:11 EDT

Groups: None (edit)

Description Vincent Danen 2014-07-25 15:22:29 EDT

IssueDescription:

It was found that when replication was enabled for each attribute in Red Hat Directory Server / 389 Directory Server, which is the default configuration, the server returned replicated metadata when the directory was searched while debugging was enabled. A remote attacker could use this flaw to disclose potentially sensitive information.


Acknowledgements:

This issue was discovered by Ludwig Krispenz of Red Hat.

Comment 1 Vincent Danen 2014-07-25 15:23:51 EDT

Created attachment 921040 [details]
patch to correct the flaw

Comment 2 Rich Megginson 2014-07-25 15:52:01 EDT

Comment on attachment 921040 [details]
patch to correct the flaw

It would be better if the new int rootonly structure member were added at the end.  This is a private structure, but just to be safe to ensure ABI compatibility.

Otherwise, ack

Comment 4 Nathan Kinder 2014-07-25 16:09:55 EDT

Adding mkosek since this affects IPA/IdM.

Comment 5 Ludwig 2014-07-28 03:31:10 EDT

Created attachment 921712 [details]
schema and aci change for workaround

Comment 6 Ludwig 2014-07-28 03:32:14 EDT

adding an nscpenntrywss attributetypes to the schema makes the aci work

Comment 7 Martin Kosek 2014-07-28 03:37:29 EDT

JFTR, this issue should not affect FreeIPA 4.0 and later as we no longer allow all attributes (except defined blacklist) as we did in pre-4.0, but rather only allow specified attributes (feature page: http://www.freeipa.org/page/V4/Permissions_V2).

Comment 11 Noriko Hosoi 2014-07-28 12:49:32 EDT

Created attachment 921835 [details]
Updated the Ludwig's patch following the review comments by Rich.

Comment 12 Noriko Hosoi 2014-07-28 20:41:15 EDT

Steps to verify:
1. set up 2-way MMR
2. do some add/modify/delete
3. run search as Directory Manager with attribute list "nscpEntryWSI".
ldapsearch [...] -D "cn=directory manager" -w <pw> -b <suffix> nscpEntryWSI
Expected result:
   dn: <some rdn>,<suffix>
   nscpEntryWSI: dn: <some rdn>,<suffix>
   nscpEntryWSI: objectClass;vucsn-53d6ebef000000010000: organization
   nscpEntryWSI: objectClass;vucsn-53d6ebef000000010000: top
   [...]
   nscpEntryWSI: tombstoneNumSubordinates: 1
4. run search as an ordinary user with attribute list "nscpEntryWSI".
ldapsearch [...] -D "uid=testuser,<suffix>" -w <pw> -b <suffix> nscpEntryWSI
Expected result:
   dn: <some rdn>,<suffix>
5. run search as nobody with attribute list "nscpEntryWSI".
ldapsearch [...] -b <suffix> nscpEntryWSI
Expected result:
   dn: <some rdn>,<suffix>

If only searching as the Directory Manager returns nscpEntryWSI values, this bug is verified.

Comment 13 Vincent Danen 2014-08-07 12:06:38 EDT

Created 389-ds-base tracking bugs for this issue:

Affects: fedora-all [bug 1127833]
Affects: epel-5 [bug 1127834]

Comment 14 errata-xmlrpc 2014-08-07 12:42:20 EDT

This issue has been addressed in following products:

  Red Hat Directory Server 8 for RHEL 5

Via RHSA-2014:1032 https://rhn.redhat.com/errata/RHSA-2014-1032.html

Comment 15 errata-xmlrpc 2014-08-07 14:24:01 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2014:1031 https://rhn.redhat.com/errata/RHSA-2014-1031.html

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