CVE-2017-9803
Apache Solr's Kerberos plugin can be configured to use delegation tokens, which allows an application to reuse the authentication of an…
- Published
- Updated
- Reserved
- Assigned by
- apache
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.2% · top 17% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Information Disclosure
- CWE-287 (opens in a new tab)All about CWE-287 and its CVEs
Affected products
Apache Software Foundation · Apache Solr
- affected 6.2.0 to 6.6.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.solr:solr-coreGHSA-f553-j2gv-g5r9 (opens in a new tab)
References (2)
- 100870 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [www-announce] 20170918 CVE-2017-9803: Security vulnerability in kerberos delegation token functionality (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-f553-j2gv-g5r9 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2017-9803)Record last updated .