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CVE-2017-7660

7.5 · HIGH

Apache Solr uses a PKI based mechanism to secure inter-node communication when security is enabled.

Published Jul 7, 2017CWE-287EPSS 5.63%

Overview

CVE-2017-7660 is a high-severity vulnerability. It was published on July 7, 2017 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refmail-archives.us.apache.org/mod_mbox/www-announce/201707.mbox/%3CCAOOKt53EgrybaD%2BiSn-nBbvFdse-szhg%3DhMoDZuvUvyMme-Z%3Dg%40mail.gmail.com%3ERefwww.securityfocus.com/bid/99485Refsecurity.netapp.com/advisory/ntap-20181127-0003/Refmail-archives.us.apache.org/mod_mbox/www-announce/201707.mbox/%3CCAOOKt53EgrybaD%2BiSn-nBbvFdse-szhg%3DhMoDZuvUvyMme-Z%3Dg%40mail.gmail.com%3ERefwww.securityfocus.com/bid/99485Refsecurity.netapp.com/advisory/ntap-20181127-0003/

How CyberStrike helps

Frequently asked questions

What is CVE-2017-7660?

CVE-2017-7660 is a high-severity vulnerability. It was published on July 7, 2017 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2017-7660?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-7660?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-7660?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-7660 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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