Improper Authentication Affecting etcd package, versions <3.3.25+dfsg-5


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.29% (70th percentile)

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  • Snyk ID SNYK-DEBIANUNSTABLE-ETCD-608039
  • published 21 Aug 2020
  • disclosed 6 Aug 2020

How to fix?

Upgrade Debian:unstable etcd to version 3.3.25+dfsg-5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream etcd package and not the etcd package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

In ectd before versions 3.4.10 and 3.3.23, gateway TLS authentication is only applied to endpoints detected in DNS SRV records. When starting a gateway, TLS authentication will only be attempted on endpoints identified in DNS SRV records for a given domain, which occurs in the discoverEndpoints function. No authentication is performed against endpoints provided in the --endpoints flag. This has been fixed in versions 3.4.10 and 3.3.23 with improved documentation and deprecation of the functionality.

CVSS Scores

version 3.1
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NVD

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

Red Hat

6.5 medium