GLSA-202310-22 : Salt: Multiple Vulnerabilities

critical Nessus Plugin ID 184073

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Description

The remote host is affected by the vulnerability described in GLSA-202310-22 (Salt: Multiple Vulnerabilities)

- An issue was discovered in SaltStack Salt before 3002.5. The minion's restartcheck is vulnerable to command injection via a crafted process name. This allows for a local privilege escalation by any user able to create a files on the minion in a non-blacklisted directory. (CVE-2020-28243)

- In SaltStack Salt before 3002.5, authentication to VMware vcenter, vsphere, and esxi servers (in the vmware.py files) does not always validate the SSL/TLS certificate. (CVE-2020-28972)

- In SaltStack Salt before 3002.5, when authenticating to services using certain modules, the SSL certificate is not always validated. (CVE-2020-35662)

- In SaltStack Salt before 3002.5, eauth tokens can be used once after expiration. (They might be used to run command against the salt master or minions.) (CVE-2021-3144)

- An issue was discovered in SaltStack Salt before 3002.5. Sending crafted web requests to the Salt API can result in salt.utils.thin.gen_thin() command injection because of different handling of single versus double quotes. This is related to salt/utils/thin.py. (CVE-2021-3148)

- An issue was discovered in SaltStack Salt before 3002.5. The salt-api's ssh client is vulnerable to a shell injection by including ProxyCommand in an argument, or via ssh_options provided in an API request.
(CVE-2021-3197)

- An issue was discovered in SaltStack Salt before 3003.3. A user who has control of the source, and source_hash URLs can gain full file system access as root on a salt minion. (CVE-2021-21996)

- An issue was discovered in through SaltStack Salt before 3002.5. salt-api does not honor eauth credentials for the wheel_async client. Thus, an attacker can remotely run any wheel modules on the master.
(CVE-2021-25281)

- An issue was discovered in through SaltStack Salt before 3002.5. The salt.wheel.pillar_roots.write method is vulnerable to directory traversal. (CVE-2021-25282)

- An issue was discovered in through SaltStack Salt before 3002.5. The jinja renderer does not protect against server side template injection attacks. (CVE-2021-25283)

- An issue was discovered in through SaltStack Salt before 3002.5. salt.modules.cmdmod can log credentials to the info or error log level. (CVE-2021-25284)

- In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for local privilege escalation on a minion. The attack requires that a file is created with a pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes popen unsafely). (CVE-2021-31607)

- An issue was discovered in SaltStack Salt in versions before 3002.8, 3003.4, 3004.1. Salt Masters do not sign pillar data with the minion's public key, which can result in attackers substituting arbitrary pillar data. (CVE-2022-22934)

- An issue was discovered in SaltStack Salt in versions before 3002.8, 3003.4, 3004.1. A minion authentication denial of service can cause a MiTM attacker to force a minion process to stop by impersonating a master. (CVE-2022-22935)

- An issue was discovered in SaltStack Salt in versions before 3002.8, 3003.4, 3004.1. Job publishes and file server replies are susceptible to replay attacks, which can result in an attacker replaying job publishes causing minions to run old jobs. File server replies can also be re-played. A sufficient craft attacker could gain root access on minion under certain scenarios. (CVE-2022-22936)

- An issue was discovered in SaltStack Salt in versions before 3002.8, 3003.4, 3004.1. When configured as a Master-of-Masters, with a publisher_acl, if a user configured in the publisher_acl targets any minion connected to the Syndic, the Salt Master incorrectly interpreted no valid targets as valid, allowing configured users to target any of the minions connected to the syndic with their configured commands. This requires a syndic master combined with publisher_acl configured on the Master-of-Masters, allowing users specified in the publisher_acl to bypass permissions, publishing authorized commands to any configured minion. (CVE-2022-22941)

- An issue was discovered in SaltStack Salt in versions before 3002.9, 3003.5, 3004.2. PAM auth fails to reject locked accounts, which allows a previously authorized user whose account is locked still run Salt commands when their account is locked. This affects both local shell accounts with an active session and salt-api users that authenticate via PAM eauth. (CVE-2022-22967)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

All Salt users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose >=app-admin/salt-3004.2

Plugin Details

Severity: Critical

ID: 184073

File Name: gentoo_GLSA-202310-22.nasl

Version: 1.1

Type: local

Family: Gentoo Local Security Checks

Published: 10/31/2023

Updated: 11/1/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-3197

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:salt

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/31/2023

Vulnerability Publication Date: 2/27/2021

Exploitable With

Metasploit (SaltStack Salt API Unauthenticated RCE through wheel_async client)

Reference Information

CVE: CVE-2020-28243, CVE-2020-28972, CVE-2020-35662, CVE-2021-21996, CVE-2021-25281, CVE-2021-25282, CVE-2021-25283, CVE-2021-25284, CVE-2021-3144, CVE-2021-3148, CVE-2021-31607, CVE-2021-3197, CVE-2022-22934, CVE-2022-22935, CVE-2022-22936, CVE-2022-22941, CVE-2022-22967

Detections

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