[ASA-202011-7] salt: multiple issues

[Remi Gacogne]

Arch Linux Security Advisory ASA-202011-7
=========================================

Severity: Critical
Date    : 2020-11-10
CVE-ID  : CVE-2020-16846 CVE-2020-17490 CVE-2020-25592
Package : salt
Type    : multiple issues
Remote  : Yes
Link    : https://security.archlinux.org/AVG-1262

Summary
=======

The package salt before version 2019.2.7-1 is vulnerable to multiple
issues including arbitrary command execution and access restriction
bypass.

Resolution
==========

Upgrade to 2019.2.7-1.

# pacman -Syu "salt>=2019.2.7-1"

The problems have been fixed upstream in version 2019.2.7.

Workaround
==========

None.

Description
===========

- CVE-2020-16846 (arbitrary command execution)

An issue has been found in Salt before 3001.3, 3000.5, 2019.2.7 where
an unauthenticated user with network access to the Salt API can use
shell injections to run code on the Salt API using the SSH client.

- CVE-2020-17490 (access restriction bypass)

An issue has been found in Salt before 3001.3, 3000.5, 2019.2.7 where,
when using the functions create_ca, create_csr, and
create_self_signed_cert in the tls execution module, it will not ensure
the key was created with the correct permissions.

- CVE-2020-25592 (arbitrary command execution)

An issue has been found in Salt before 3001.3, 3000.5, 2019.2.7 where,
when using the SSH client, an unauthenticated user can gain access to
run commands against targets set in a Salt-SSH roster.

Impact
======

A remote, unauthenticated user with network access to the Salt API can
execute arbitrary commands.

References
==========

https://www.saltstack.com/blog/on-november-3-2020-saltstack-publicly-disclosed-three-new-cves/
https://gitlab.com/saltstack/open/salt-patches/-/blob/master/patches/2020/09/02/2019.2.x.patch
https://gitlab.com/saltstack/open/salt-patches/-/blob/master/patches/2020/09/25/2019.2.6.patch
https://security.archlinux.org/CVE-2020-16846
https://security.archlinux.org/CVE-2020-17490
https://security.archlinux.org/CVE-2020-25592

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