Authentication Bypass Affecting github.com/gravitational/teleport/lib/auth package, versions <4.4.11 >=5.0.0 <5.2.4 >=6.0.0 <6.2.12 >=7.0.0 <7.1.1


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.18% (57th percentile)

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  • Snyk ID SNYK-GOLANG-GITHUBCOMGRAVITATIONALTELEPORTLIBAUTH-1586251
  • published 19 Sep 2021
  • disclosed 19 Sep 2021
  • credit Unknown

How to fix?

Upgrade github.com/gravitational/teleport/lib/auth to version 4.4.11, 5.2.4, 6.2.12, 7.1.1 or higher.

Overview

Affected versions of this package are vulnerable to Authentication Bypass via SSH host certificates forgery.

Note: This is exploitable when using tsh with an identity file, or if an attacker is able to get the agent to connect to a cluster within their control. This vulnerability is fixed in versions 7.1.1, 6.2.12, 5.2.4 and 4.4.11 which are available on Github.

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
7.6 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    Low
  • Availability (A)
    Low
Expand this section

NVD

9.8 critical