Versions of the Official Alpine Linux Docker images (since v3.3)...
Vulnerability Description
Versions of the Official Alpine Linux Docker images (since v3.3) contain a NULL password for the `root` user. This vulnerability appears to be the result of a regression introduced in December of 2015. Due to the nature of this issue, systems deployed using affected versions of the Alpine Linux container which utilize Linux PAM, or some other mechanism which uses the system shadow file as an authentication database, may accept a NULL password for the `root` user.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.securityfocus.com/bid/108288
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.html
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782
- https://security.netapp.com/advisory/ntap-20190510-0001/
- https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.html
- https://support.f5.com/csp/article/K25551452
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Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.