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Missing Authorization Affecting bash package, versions <0:4.2.46-34.43.amzn1

medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.06% (27th percentile)
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NVD
7.8 high
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Red Hat
7.8 high

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  • Snyk ID SNYK-AMZN201803-BASH-1722138
  • published 27 Sep 2021
  • disclosed 22 Mar 2019
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Introduced: 22 Mar 2019

CVE-2019-9924 Open this link in a new tab
CWE-862 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 bash to version 0:4.2.46-34.43.amzn1 or higher.
This issue was patched in ALAS-2020-1379.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bash package and not the bash package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.