CVE Vulnerabilities

CVE-2020-8028

Improper Access Control

Published: Sep 17, 2020 | Modified: Sep 28, 2020
CVSS 3.x
9.3
CRITICAL
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

A Improper Access Control vulnerability in the configuration of salt of SUSE Linux Enterprise Module for SUSE Manager Server 4.1, SUSE Manager Proxy 4.0, SUSE Manager Retail Branch Server 4.0, SUSE Manager Server 3.2, SUSE Manager Server 4.0 allows local users to escalate to root on every system managed by SUSE manager. On the managing node itself code can be executed as user salt, potentially allowing for escalation to root there. This issue affects: SUSE Linux Enterprise Module for SUSE Manager Server 4.1 google-gson versions prior to 2.8.5-3.4.3, httpcomponents-client-4.5.6-3.4.2, httpcomponents-. SUSE Manager Proxy 4.0 release-notes-susemanager-proxy versions prior to 4.0.9-0.16.38.1. SUSE Manager Retail Branch Server 4.0 release-notes-susemanager-proxy versions prior to 4.0.9-0.16.38.1. SUSE Manager Server 3.2 salt-netapi-client versions prior to 0.16.0-4.14.1, spacewalk-. SUSE Manager Server 4.0 release-notes-susemanager versions prior to 4.0.9-3.54.1.

Weakness

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Software

Name Vendor Start Version End Version
Salt-netapi-client Suse * 0.17.0-3.3.2 (excluding)

Extended Description

Access control involves the use of several protection mechanisms such as:

When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References