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Improper Privilege Management Affecting openssh package, versions <8.3_p1-r3

Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    0.06% (24th percentile)

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  • Snyk ID SNYK-ALPINE312-OPENSSH-1728384
  • published 6 Oct 2021
  • disclosed 26 Sep 2021
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Introduced: 26 Sep 2021

CVE-2021-41617 Open this link in a new tab
CWE-269 Open this link in a new tab

How to fix?

Upgrade Alpine:3.12 openssh to version 8.3_p1-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Alpine. See How to fix? for Alpine:3.12 relevant fixed versions and status.

sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.

References

CVSS Scores

version 3.1
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Snyk

7 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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NVD

7 high
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SUSE

7 high
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Red Hat

7 high