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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gliderlabs | Docker-Alpine | >= 3.3 |
| Alpinelinux | Alpine Linux | - |
| Opensuse | Leap | 15.0 |
| F5 | Big-Ip Controller | 1.2.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.htmlMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/108288Broken Link
- https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.htmlVendor Advisory
- https://security.netapp.com/advisory/ntap-20190510-0001/Third Party Advisory
- https://support.f5.com/csp/article/K25551452Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782ExploitMitigationPatch
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.htmlMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/108288Broken Link
- https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.htmlVendor Advisory
- https://security.netapp.com/advisory/ntap-20190510-0001/Third Party Advisory
- https://support.f5.com/csp/article/K25551452Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782ExploitMitigationPatch
FAQ
What is CVE-2019-5021?
CVE-2019-5021 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...
How severe is CVE-2019-5021?
CVE-2019-5021 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2019-5021?
Check the references section above for vendor advisories and patch information. Affected products include: Gliderlabs Docker-Alpine, Alpinelinux Alpine Linux, Opensuse Leap, F5 Big-Ip Controller.