Auth bypass in Amazon Opensearch
CVE-2023-31141
OpenSearch is open-source software suite for search, analytics, and observability applications. Prior to versions 1.3.10 and 2.7.0, there is an issue with the implementation of fine-grained access control rules (document-level security, field-level security and field masking) where they are not correctly applied to the queries during extremely rare race conditions potentially leading to incorrect access authorization. For this issue to be triggered, two concurrent requests need to land on the same instance exactly when query cache eviction happens, once every four hours. OpenSearch 1.3.10 and 2.7.0 contain a fix for this issue.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Amazon Opensearch
- Amazon Opensearch Security
- Opensearch-Project Security — versions >= 1.0.0, < 1.3.10, >= 2.0.0, < 2.7.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2023-31141?
- CVE-2023-31141 is a medium-severity vulnerability in Amazon Opensearch, classified under Incorrect Authorization. CVSS score: 4.8/10. Published 2023-05-08.
- How severe is CVE-2023-31141?
- Medium severity. CVSS v3 base score is 4.8 out of 10.