CVE-2017-7660

Published: 7 July 2017

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.

Notes

Author	Note
sbeattie	introduced in solr 5.3

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
lucene-solr Launchpad, Ubuntu, Debian	trusty	Not vulnerable (code not present)
	upstream	Needs triage
	xenial	Not vulnerable (code not present)
	yakkety	Not vulnerable (code not present)
	zesty	Not vulnerable (code not present)

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

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