CVE-2022-31115
As a result opensearch-ruby 2.0.0 and prior can lead to unsafe deserialization using YAML.load if the response is of type YAML.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
opensearch-ruby is a community-driven, open source fork of elasticsearch-ruby. In versions prior to 2.0.1 the ruby `YAML.load` function was used instead of `YAML.safe_load`. As a result opensearch-ruby 2.0.0 and prior can lead to unsafe deserialization using YAML.load if the response is of type YAML. An attacker must be in control of an opensearch server and convince the victim to connect to it in order to exploit this vulnerability. The problem has been patched in opensearch-ruby gem version 2.0.1. Users are advised to upgrade. There are no known workarounds for this issue.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.57% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- amazon/opensearch
- Source
- security-advisories@github.com
References
- https://github.com/opensearch-project/opensearch-ruby/pull/77Patch, Third Party Advisory
- https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3Third Party Advisory
- https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/Exploit, Third Party Advisory
- https://github.com/opensearch-project/opensearch-ruby/pull/77Patch, Third Party Advisory
- https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3Third Party Advisory
- https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.