CVE-2019-19882
 
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
2Exploited in Wild
-Decision
Descriptions
shadow 4.8, in certain circumstances affecting at least Gentoo, Arch Linux, and Void Linux, allows local users to obtain root access because setuid programs are misconfigured. Specifically, this affects shadow 4.8 when compiled using --with-libpam but without explicitly passing --disable-account-tools-setuid, and without a PAM configuration suitable for use with setuid account management tools. This combination leads to account management tools (groupadd, groupdel, groupmod, useradd, userdel, usermod) that can easily be used by unprivileged local users to escalate privileges to root in multiple ways. This issue became much more relevant in approximately December 2019 when an unrelated bug was fixed (i.e., the chmod calls to suidusbins were fixed in the upstream Makefile which is now included in the release version 4.8).
shadow versión 4.8, en determinadas circunstancias que afectan al menos a Gentoo, Arch Linux y Void Linux, permite a usuarios locales conseguir acceso root porque los programas setuid están configurados inapropiadamente. Específicamente, esto afecta a shadow versión 4.8 cuando se compila usando --with-libpam pero sin pasar explícitamente --disable-account-tools-setuid, y sin una configuración PAM adecuada para utilizar con herramientas de administración de cuentas setuid. Esta combinación conlleva a herramientas de administración de cuentas (groupadd, groupdel, groupmod, useradd, userdel, usermod) que pueden ser usadas fácilmente por usuarios locales sin privilegios para escalar privilegios a root de múltiples maneras. Este problema se volvió mucho más relevante aproximadamente en Diciembre de 2019 cuando fue corregido un error no relacionado (es decir, las llamadas de chmod a suidusbins fueron corregidas antes del Makefile que ahora se incluye en la versión 4.8 publicada).
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-12-18 CVE Reserved
- 2019-12-18 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (6)
URL | Tag | Source |
---|
URL | Date | SRC |
---|---|---|
https://bugs.archlinux.org/task/64836 | 2024-08-05 | |
https://bugs.gentoo.org/702252 | 2024-08-05 |
URL | Date | SRC |
---|---|---|
https://github.com/shadow-maint/shadow/commit/edf7547ad5aa650be868cf2dac58944773c12d75 | 2020-08-25 | |
https://github.com/shadow-maint/shadow/pull/199 | 2020-08-25 | |
https://github.com/void-linux/void-packages/pull/17580 | 2020-08-25 |
URL | Date | SRC |
---|---|---|
https://security.gentoo.org/glsa/202008-09 | 2020-08-25 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Shadow Project Search vendor "Shadow Project" | Shadow Search vendor "Shadow Project" for product "Shadow" | 4.8 Search vendor "Shadow Project" for product "Shadow" and version "4.8" | - |
Affected
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