CVE-2017-7660 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

http://mail-archives.us.apache.org/mod_mbox/www-announce/201707.mbox/3CCAOOKt53EgrybaD2BiSn-nBbvFdse-szhg3DhMoDZuvUvyMme-Z3Dg40mail.gmail.com3E http://www.securityfocus.com/bid/99485 https://security.netapp.com/advisory/ntap-20181127-0003/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5