Privilege escalation in Elastic X-Pack
CVE-2017-8438
Elastic X-Pack Security versions 5.0.0 to 5.4.0 contain a privilege escalation bug in the run_as functionality. This bug prevents transitioning into the specified user specified in a run_as request. If a role has been created using a template that contains the _user properties, the behavior of run_as will be incorrect. Additionally if the run_as user specified does not exist, the transition will not happen.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (63.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Elastic X-Pack — versions 5.0.0, 5.0.1, 5.0.2
- Elastic X-Pack Security — versions 5.0.0 to 5.4.0
Weakness classification (CWE)
References
- discuss.elastic.co/t/elastic-stack-5-4-1-and-5-3-3-security-updates/87952 (Vendor Advisory)
- www.elastic.co/blog/elasticsearch-5-4-1-and-5-3-3-released (Patch, Vendor Advisory)
- www.elastic.co/community/security (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-8438?
- CVE-2017-8438 is a high-severity vulnerability in Elastic X-Pack, classified under Improper Access Control. CVSS score: 8.8/10. Published 2017-06-05.
- How severe is CVE-2017-8438?
- High severity. CVSS v3 base score is 8.8 out of 10.