SaltStack < 2019.2.4 / 3000.x < 3000.2 Authentication Bypass (CVE-2020-11651)

critical Nessus Plugin ID 136423

Synopsis

The version of SaltStack running on the remote server is affected by an authentication bypass vulnerability.

Description

The version of SaltStack installed on the remote server is affected by an authentication bypass vulnerability in the ClearFuncs class due to improper validation of method calls. An unauthenticated, remote attacker can exploit this by accessing exposed methods to trigger minions to run arbitrary commands as root, or to retrieve the root key to authenticate commands from the local root user on the master server.

Solution

Upgrade to SaltStack version 2019.2.4, 3000.2 or later.

See Also

http://www.nessus.org/u?4df67f57

Plugin Details

Severity: Critical

ID: 136423

File Name: saltstack_cve_2020_11651.nbin

Version: 1.45

Type: remote

Family: Misc.

Published: 5/8/2020

Updated: 11/30/2022

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2020-11651

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:saltstack:salt

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/30/2020

Vulnerability Publication Date: 3/24/2020

CISA Known Exploited Dates: 5/3/2022

Exploitable With

CANVAS (CANVAS)

Metasploit (SaltStack Salt Master/Minion Unauthenticated RCE)

Reference Information

CVE: CVE-2020-11651

IAVA: 2020-A-0195-S

EDB-ID: 48421