Bug 1510968 – CVE-2017-8028 spring-ldap: Authentication with userSearch and STARTTLS allows authentication with arbitrary password

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Bug 1510968 - (CVE-2017-8028) CVE-2017-8028 spring-ldap: Authentication with userSearch and STARTTLS allows authentication with arbitrary password

Summary:	CVE-2017-8028 spring-ldap: Authentication with userSearch and STARTTLS allows...

Status:	NEW

Aliases:	CVE-2017-8028

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

Priority	high Severity high
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Assigned To:	Red Hat Product Security
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URL:
Whiteboard:	impact=important,public=20171016,repo...
Keywords:	Security

Depends On:	1510970 1511429
Blocks:	1510973
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Reported:	2017-11-08 08:37 EST by Andrej Nemec
Modified:	2018-02-15 13:16 EST (History)
CC List:	8 users (show)

See Also:
Fixed In Version:	spring-ldap 2.3.2
Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in spring-ldap that allows an attacker to authenticate with an arbitrary password. When spring-ldap connected to some LDAP servers, when no additional attributes are bound, when using LDAP BindAuthenticator with org.springframework.ldap.core.support.DefaultTlsDirContextAuthenticationStrategy as the authentication strategy, and when setting userSearch, authentication is allowed with an arbitrary password when the username is correct.
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:0319	normal	SHIPPED_LIVE	Important: Red Hat JBoss Fuse/A-MQ 6.3 R6 security and bug fix update	2018-02-14 19:29:46 EST

Groups: None (edit)

Description Andrej Nemec 2017-11-08 08:37:45 EST

When connected to some LDAP servers, when no additional attributes are bound, and when using LDAP BindAuthenticator with org.springframework.ldap.core.support.DefaultTlsDirContextAuthenticationStrategy as the authentication strategy, and setting userSearch, authentication is allowed with an arbitrary password when the username is correct. This occurs because some LDAP vendors require an explicit operation for the LDAP bind to take effect.

References:

https://pivotal.io/security/cve-2017-8028

Upstream issue:

https://github.com/spring-projects/spring-ldap/issues/430

Comment 1 Andrej Nemec 2017-11-08 08:38:06 EST

Created spring-ldap tracking bugs for this issue:

Affects: fedora-all [bug 1510970]

Comment 5 Siddharth Sharma 2017-11-19 22:20:56 EST

Analysis:

Red Hat Gluster Storage 3 ships rhevm-dependencies which contains affected code but instead of DefaultTlsDirContextAuthenticationStrategy code uses SimpleDirContextAuthenticationStrategy. Impact of this flaw is low for Red Hat Gluster Storage 3.

Comment 7 errata-xmlrpc 2018-02-14 14:30:18 EST

This issue has been addressed in the following products:

  Red Hat JBoss Fuse

Via RHSA-2018:0319 https://access.redhat.com/errata/RHSA-2018:0319

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