Bug 1473273 - (CVE-2017-7660) CVE-2017-7660 solr: Insufficient authentization for inter-node communication
CVE-2017-7660 solr: Insufficient authentization for inter-node communication
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170707,repor...
: Security
Depends On:
Blocks: 1473274
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Reported: 2017-07-20 07:38 EDT by Andrej Nemec
Modified: 2018-01-30 15:42 EST (History)
38 users (show)

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Description Andrej Nemec 2017-07-20 07:38:44 EDT
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 07:41:49 EDT
Upstream issue:

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

References:

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

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