SB2019032703 - Security restrictions bypass in Elastic Elasticsearch
Published: March 27, 2019
Security Bulletin ID
SB2019032703
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: CVE-2019-7611)
The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.
The vulnerability exists due to improper access restrictions when Field Level Security and Document Level Security are disabled and the _aliases, _shrink, or _split endpoints are used, which means that elasticsearch.yml file has xpack.security.dls_fls.enabled set to false. A remote authenticated attacker can make API calls to the _aliases, _shrink, or _split endpoints and make existing data available under a new index/alias name.
Remediation
Install update from vendor's website.