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CVE-2017-20002

CVE-2017-20002

This page contains facts from public vulnerability sources. Check the original advisory before updating.

The Debian shadow package before 1:4.5-1 for Shadow incorrectly lists pts/0 and pts/1 as physical terminals in /etc/securetty. This allows local users to login as password-less users even if they are connected by non-physical means such as SSH (hence bypassing PAM's nullok_secure configuration). This notably affects environments such as virtual machines automatically generated with a default blank root password, allowing all local users to escalate privileges.

CVSS 7.8 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • shadow Debian:12

    Affected ranges
    • ECOSYSTEM: < 1:4.5-1

    Update to 1:4.5-1

  • shadow Debian:13

    Affected ranges
    • ECOSYSTEM: < 1:4.5-1

    Update to 1:4.5-1

  • shadow Debian:14

    Affected ranges
    • ECOSYSTEM: < 1:4.5-1

    Update to 1:4.5-1

Original sources

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