CVE-2019-5021
Alpine Linux Docker NULL Root Password Authentication Bypass
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.
INFO
Published Date :
May 8, 2019, 5:29 p.m.
Last Modified :
June 13, 2022, 6:45 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2019-5021 has a 6 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2019-5021
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-5021.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.html | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/108288 | Broken Link |
| https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.html | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20190510-0001/ | Third Party Advisory |
| https://support.f5.com/csp/article/K25551452 | Third Party Advisory |
| https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782 | Mitigation Exploit Third Party Advisory Patch |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
《云原生安全：攻防实践与体系构建》资料仓库
Dockerfile C Shell Makefile Assembly Go Python
Automatic monitor github cve using Github Actions
Python
2019年天融信阿尔法实验室在微信公众号发布的所有安全资讯汇总
None
Dockerfile
Base images for Hanami 1.3.1. Ruby 2.6 or 2.5 on Alpine or Debian base images
Shell Ruby
collection of interesting projects I see online or dream up in my spare time
Python HTML CSS JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-5021 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-5021 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Jun. 13, 2022
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.html Mailing List, Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/108288 Third Party Advisory http://www.securityfocus.com/bid/108288 Broken Link Changed Reference Type https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.html No Types Assigned https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.html Vendor Advisory Changed Reference Type https://support.f5.com/csp/article/K25551452 No Types Assigned https://support.f5.com/csp/article/K25551452 Third Party Advisory Removed CWE NIST CWE-798 Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_controller:1.2.1:*:*:*:*:cloud_foundry:*:* -
CVE Modified by [email protected]
Apr. 29, 2022
Action Type Old Value New Value Added CWE Talos CWE-258 -
CVE Modified by [email protected]
Apr. 19, 2022
Action Type Old Value New Value Added CVSS V3 Talos AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by [email protected]
Jun. 24, 2019
Action Type Old Value New Value Added Reference https://support.f5.com/csp/article/K25551452 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 03, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00004.html [No Types Assigned] -
CVE Modified by [email protected]
May. 15, 2019
Action Type Old Value New Value Added Reference https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.html [No Types Assigned] -
Initial Analysis by [email protected]
May. 13, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.securityfocus.com/bid/108288 No Types Assigned http://www.securityfocus.com/bid/108288 Third Party Advisory Changed Reference Type https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782 No Types Assigned https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782 Exploit, Mitigation, Patch, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20190510-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20190510-0001/ Third Party Advisory Added CWE CWE-798 Added CPE Configuration AND OR *cpe:2.3:a:gliderlabs:docker-alpine:*:*:*:*:*:*:*:* versions from (including) 3.3 OR cpe:2.3:o:alpinelinux:alpine_linux:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 10, 2019
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20190510-0001/ [No Types Assigned] -
CVE Modified by [email protected]
May. 10, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/108288 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-5021 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-5021
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.13 }} 0.10%
score
0.84933
percentile