Upstream information

CVE-2019-19882 at MITRE

Description

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).

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 6.9
Vector AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.8
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1159633 [RESOLVED / UPSTREAM]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE CaaS Platform 3.0 shadow Not affected
SUSE Container as a Service Platform 1.0 shadow Affected
SUSE Container as a Service Platform 2.0 shadow Not affected
SUSE Linux Enterprise 15 Module for Basesystem shadow Not affected
SUSE Linux Enterprise 15-SP1 Module for Basesystem shadow Not affected
SUSE Linux Enterprise Desktop 12 SP4 shadow Not affected
SUSE Linux Enterprise High Performance Computing 12 SP4 shadow Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 shadow Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS shadow Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS shadow Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS shadow Not affected
SUSE Linux Enterprise Server 12 SP4 shadow Not affected
SUSE Linux Enterprise Server 12 SP5 shadow Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 shadow Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 shadow Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 shadow Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 shadow Not affected