Incorrect Permission Assignment for Critical Resource Affecting github.com/hashicorp/vault/builtin/logical/ssh package, versions >=1.7.7 <1.17.6


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-GOLANG-GITHUBCOMHASHICORPVAULTBUILTINLOGICALSSH-8102334
  • published 27 Sep 2024
  • disclosed 26 Sep 2024
  • credit Jörn Heissler

How to fix?

Upgrade github.com/hashicorp/vault/builtin/logical/ssh to version 1.17.6 or higher.

Overview

Affected versions of this package are vulnerable to Incorrect Permission Assignment for Critical Resource due to not requiring the valid_principals list to contain a value by default. An attacker could authenticate as any user on the host by using an SSH certificate requested by an authorized user to Vault’s SSH secrets engine.

Note: This can be exploited if the valid_principals and default_user fields of the SSH secrets engine configuration are not set.

CVSS Scores

version 4.0
version 3.1
Expand this section

Snyk

Recommended
7.7 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Attack Requirements (AT)
    Present
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Confidentiality (VC)
    High
  • Integrity (VI)
    High
  • Availability (VA)
    High
  • Confidentiality (SC)
    None
  • Integrity (SI)
    None
  • Availability (SA)
    None