Bug 1473273 (CVE-2017-7660)

Summary:	CVE-2017-7660 solr: Insufficient authentization for inter-node communication
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aileenc, bmaxwell, cdewolf, chazlett, csutherl, darran.lofthouse, dimitris, dosoudil, fgavrilo, gvarsami, jawilson, jcoleman, jolee, jondruse, jshepherd, kconner, ldimaggi, lgao, myarboro, nwallace, pgier, pjurak, ppalaga, psakar, pslavice, rnetuka, rstancel, rsvoboda, rwagner, tcunning, tkirby, twalsh, vhalbert, vtunka
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Last Closed:	2019-06-08 03:17:16 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Bug Blocks:	1473274

Description Andrej Nemec 2017-07-20 11:38:44 UTC

Apache Solr uses a PKI based mechanism to secure inter-node communication when security is enabled. It is possible to create a specially crafted node name that does not exist as part of the cluster and point it to a malicious node. This can trick the nodes in cluster to believe that the malicious node is a member of the cluster. So, if Solr users have enabled BasicAuth authentication mechanism using the BasicAuthPlugin or if the user has implemented a custom Authentication plugin, which does not implement either "HttpClientInterceptorPlugin" or "HttpClientBuilderPlugin", his/her servers are vulnerable to this attack. Users who only use SSL without basic authentication or those who use Kerberos are not affected.

References:

http://mail-archives.us.apache.org/mod_mbox/www-announce/201707.mbox/%3CCAOOKt53EgrybaD%2BiSn-nBbvFdse-szhg%3DhMoDZuvUvyMme-Z%3Dg%40mail.gmail.com%3E

Upstream patch:

http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/2f5ecbcf

Comment 1 Andrej Nemec 2017-07-20 11:41:49 UTC

Upstream issue:

https://issues.apache.org/jira/browse/SOLR-10624

References:

http://seclists.org/bugtraq/2017/Jul/15