CVE-2020-15136 (Medium) detected in github.com/etcd-io/etcd-v3.1.20

[mend-for-github-com]

CVE-2020-15136 - Medium Severity Vulnerability

Vulnerable Library - github.com/etcd-io/etcd-v3.1.20

Distributed reliable key-value store for the most critical data of a distributed system

Dependency Hierarchy:

• github.com/google/certificate-transparency-go-v1.1.1 (Root Library)
  • github.com/etcd-io/etcd-v3.3.25
    • ❌ github.com/etcd-io/etcd-v3.1.20 (Vulnerable Library)

Found in HEAD commit: 549c2321b216d811654d8e364e811dbca812a5a6

Found in base branch: master

Vulnerability Details

In ectd before versions 3.4.10 and 3.3.23, gateway TLS authentication is only applied to endpoints detected in DNS SRV records. When starting a gateway, TLS authentication will only be attempted on endpoints identified in DNS SRV records for a given domain, which occurs in the discoverEndpoints function. No authentication is performed against endpoints provided in the --endpoints flag. This has been fixed in versions 3.4.10 and 3.3.23 with improved documentation and deprecation of the functionality.

Publish Date: 2020-08-06

URL: CVE-2020-15136

CVSS 3 Score Details (6.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: Low
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/etcd-io/etcd/tree/v3.4.10

Release Date: 2020-07-21

Fix Resolution: 3.4.10, 3.3.23