Vulnerability Details CVE-2019-5021
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.037
EPSS Ranking 87.4%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 10.0
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.html
- http://www.securityfocus.com/bid/108288
- https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.html
- https://security.netapp.com/advisory/ntap-20190510-0001/
- https://support.f5.com/csp/article/K25551452
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.html
- http://www.securityfocus.com/bid/108288
- https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.html
- https://security.netapp.com/advisory/ntap-20190510-0001/
- https://support.f5.com/csp/article/K25551452
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782
Products affected by CVE-2019-5021
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cpe:2.3:a:f5:big-ip_controller:1.2.1
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cpe:2.3:a:gliderlabs:docker-alpine:3.3
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cpe:2.3:a:gliderlabs:docker-alpine:3.4
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cpe:2.3:a:gliderlabs:docker-alpine:3.5
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cpe:2.3:a:gliderlabs:docker-alpine:3.6
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cpe:2.3:a:gliderlabs:docker-alpine:3.7
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cpe:2.3:a:gliderlabs:docker-alpine:3.8
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cpe:2.3:a:gliderlabs:docker-alpine:3.9
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cpe:2.3:o:alpinelinux:alpine_linux:-
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cpe:2.3:o:opensuse:leap:15.0
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cpe:2.3:o:opensuse:leap:15.1