Auth bypass in Floragunn Search Guard Kibana Plugin
CVE-2019-13423
Search Guard Kibana Plugin versions before 5.6.8-7 and before 6.x.y-12 had an issue that an authenticated Kibana user could impersonate as kibanaserver user when providing wrong credentials when all of the following conditions a-c are true: a) Kibana is configured to use Single-Sign-On as authentication method, one of Kerberos, JWT, Proxy, Client certificate. b) The kibanaserver user is configured to use HTTP Basic as the authentication method. c) Search Guard is configured to use an SSO authentication domain and HTTP Basic at the same time
Vulnerability class: Broken Authentication
EPSS: 0.007 (48.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Floragunn Search Guard Kibana Plugin — versions unspecified, unspecified
- Search-guard Search_guard
Weakness classification (CWE)
References
- security@search-guard.com (x_refsource_MISC, Vendor Advisory)
- security@search-guard.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-13423?
- CVE-2019-13423 is a high-severity vulnerability in Floragunn Search Guard Kibana Plugin, classified under Improper Authentication. CVSS score: 8.8/10. Published 2019-08-23.
- How severe is CVE-2019-13423?
- High severity. CVSS v3 base score is 8.8 out of 10.