Improper Authentication Affecting ruby package, versions <2.4.2-r0


0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.83% (82nd percentile)
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NVD
8.8 high
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Red Hat
5.4 medium

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  • Snyk ID SNYK-ALPINE39-RUBY-338865
  • published 19 Sep 2017
  • disclosed 19 Sep 2017

How to fix?

Upgrade Alpine:3.9 ruby to version 2.4.2-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby package and not the ruby package as distributed by Alpine. See How to fix? for Alpine:3.9 relevant fixed versions and status.

The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.