etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. If an etcd client server TLS certificate contains a Common Name (CN) which matches a valid RBAC username, a remote attacker may authenticate as that user with any valid (trusted) client certificate in a REST API request to the gRPC-gateway.
:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.
CVE-2018-16886 - High Severity Vulnerability
Vulnerable Library - github.com/google/certificate-transparency-go-v1.0.21
Auditing for TLS certificates (Go code)
Library home page: https://proxy.golang.org/github.com/google/certificate-transparency-go/@v/v1.0.21.zip
Dependency Hierarchy: - github.com/cloudflare/Cfssl-v1.4.1 (Root Library) - :x: **github.com/google/certificate-transparency-go-v1.0.21** (Vulnerable Library)
Found in HEAD commit: 432a85aa9d4094d52823bdb4be9cf19758df85e1
Found in base branch: main
Vulnerability Details
etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. If an etcd client server TLS certificate contains a Common Name (CN) which matches a valid RBAC username, a remote attacker may authenticate as that user with any valid (trusted) client certificate in a REST API request to the gRPC-gateway.
Publish Date: 2019-01-14
URL: CVE-2018-16886
CVSS 3 Score Details (8.1)
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: High - Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2018-16886
Release Date: 2019-01-14
Fix Resolution: 3.2.26,3.3.11
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