CVE-2020-15113 (High) detected in github.com/google/certificate-transparency-go-v1.0.20

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CVE-2020-15113 - High Severity Vulnerability

Vulnerable Library - github.com/google/certificate-transparency-go-v1.0.20

Auditing for TLS certificates (Go code)

Library home page: https://proxy.golang.org/github.com/google/certificate-transparency-go/@v/v1.0.20.zip

Dependency Hierarchy:

• github.com/docker/swarmkit/ca-5a5494a9a7b408b790533a5e4e1cb43ca1c32aad (Root Library)
  • github.com/cloudflare/cfssl/initca-1.3.2
    • github.com/cloudflare/cfssl/config-1.3.2
      • github.com/cloudflare/cfssl/helpers-1.3.2
        • ❌ github.com/google/certificate-transparency-go-v1.0.20 (Vulnerable Library)

Found in HEAD commit: 74c0db1e26014a7f5e115cea39a5b8613c912db7

Found in base branch: master

Vulnerability Details

In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).

Publish Date: 2020-08-05

URL: CVE-2020-15113

CVSS 3 Score Details (7.1)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2020-08-05

Fix Resolution: 3.4.10, 3.3.23