CVE-2017-9803

Description

Apache Solr's Kerberos plugin can be configured to use delegation tokens, which allows an application to reuse the authentication of an end-user or another application. There are two issues with this functionality (when using SecurityAwareZkACLProvider type of ACL provider e.g. SaslZkACLProvider). Firstly, access to the security configuration can be leaked to users other than the solr super user. Secondly, malicious users can exploit this leaked configuration for privilege escalation to further expose/modify private data and/or disrupt operations in the Solr cluster. The vulnerability is fixed from Apache Solr 6.6.1 onwards.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.34%
Third-Party Advisory securityfocus.com
Affected: Apache Software Foundation Apache Solr
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/100870 vdb entry third party advisory
http://mail-archives.us.apache.org/mod_mbox/www-announce/201709.mbox/%3CCAOOKt53AOScg04zUh0%2BR_fcXD0C9s5mQ-OzdgYdnHz49u1KmXw%40mail.gmail.com%3E mailing list

Frequently Asked Questions

What is the severity of CVE-2017-9803?
CVE-2017-9803 has been scored as a high severity vulnerability.
How to fix CVE-2017-9803?
To fix CVE-2017-9803, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-9803 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-9803 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-9803?
CVE-2017-9803 affects Apache Software Foundation Apache Solr.
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