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Elastic APM agent for Ruby vulnerable to Improper Certificate Validation

High severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Mar 9, 2023

Package

bundler elastic-apm (RubyGems)

Affected versions

< 2.9.0

Patched versions

2.9.0

Description

A TLS certificate validation flaw was found in Elastic APM agent for Ruby versions before 2.9.0. When specifying a trusted server CA certificate via the server_ca_cert setting, the Ruby agent would not properly verify the certificate returned by the APM server. This could result in a man in the middle style attack against the Ruby agent.

References

Published by the National Vulnerability Database Jul 30, 2019
Published to the GitHub Advisory Database May 24, 2022
Reviewed Mar 3, 2023
Last updated Mar 9, 2023

Severity

High
7.4
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CVE ID

CVE-2019-7615

GHSA ID

GHSA-35j2-p8fh-x966

Source code

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