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Privilege Escalation Affecting github.com/hashicorp/consul/agent/consul package, versions >=1.2.0 <1.8.6

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    Exploit Maturity Mature
    EPSS 0.1% (42nd percentile)
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NVD
6.5 medium

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  • Snyk ID SNYK-GOLANG-GITHUBCOMHASHICORPCONSULAGENTCONSUL-1043754
  • published 23 Nov 2020
  • disclosed 23 Nov 2020
  • credit Unknown
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Introduced: 23 Nov 2020

CVE-2020-28053 Open this link in a new tab
CWE-264 Open this link in a new tab

How to fix?

Upgrade github.com/hashicorp/consul/agent/consul to version 1.8.6 or higher.

Overview

github.com/hashicorp/consul/agent/consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.

Affected versions of this package are vulnerable to Privilege Escalation. Allows operators with operator:read ACL permissions to read the Connect CA private key configuration when explicitly configured with the /v1/connect/ca/configuration endpoint, including the private key. This allows the user to effectively privilege escalate by enabling the ability to mint certificates for any Consul Connect services. This would potentially allow them to masquerade (receive/send traffic) as any service in the mesh.