XXE in Elastic Elasticsearch
CVE-2018-17247
Elasticsearch Security versions 6.5.0 and 6.5.1 contain an XXE flaw in Machine Learning's find_file_structure API. If a policy allowing external network access has been added to Elasticsearch's Java Security Manager then an attacker could send a specially crafted request capable of leaking content of local files on the Elasticsearch node. This could allow a user to access information that they should not have access to.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.014 (71.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Elastic Elasticsearch — versions 6.5.0 and 6.5.1, 6.5.0, 6.5.1
Weakness classification (CWE)
References
- www.securityfocus.com/bid/106294 (VDB Entry, Third Party Advisory, vdb-entry)
- discuss.elastic.co/t/elastic-stack-6-5-2-security-update/159594 (Vendor Advisory)
- www.elastic.co/community/security (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-17247?
- CVE-2018-17247 is a medium-severity vulnerability in Elastic Elasticsearch, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.9/10. Published 2018-12-20.
- How severe is CVE-2018-17247?
- Medium severity. CVSS v3 base score is 5.9 out of 10.