Auth bypass in Apache Solr
CVE-2018-11802
In Apache Solr, the cluster can be partitioned into multiple collections and only a subset of nodes actually host any given collection. However, if a node receives a request for a collection it does not host, it proxies the request to a relevant node and serves the request. Solr bypasses all authorization settings for such requests. This affects all Solr versions prior to 7.7 that use the default authorization mechanism of Solr (RuleBasedAuthorizationPlugin).
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.020 (80.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Apache Solr — versions before 7.7
- Apache Solr
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2019/04/24/1 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-11802?
- CVE-2018-11802 is a medium-severity vulnerability in Apache Solr, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2020-04-01.
- How severe is CVE-2018-11802?
- Medium severity. CVSS v3 base score is 4.3 out of 10.