CVE-2017-9803

high Apache
CVSS v3 Base Score
7.5
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
1.2%
Exploitation probability in 30 days
Top 21% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: September 18, 2017 (3160 days ago)
Last Modified: May 13, 2026
Vendor: Apache
Source: NVD

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.

CWE

CWE-287

Affected Products

apache solr

References

🔗 mail-archives.us.apache.org 🔗 www.securityfocus.com 🔗 mail-archives.us.apache.org 🔗 www.securityfocus.com