// For flags

CVE-2019-19882

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
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).

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
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
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