[ASA-202005-1] salt: multiple issues
Morten Linderud
foxboron at archlinux.org
Tue May 5 15:02:02 UTC 2020
Arch Linux Security Advisory ASA-202005-1
=========================================
Severity: Critical
Date : 2020-05-05
CVE-ID : CVE-2020-11651 CVE-2020-11652
Package : salt
Type : multiple issues
Remote : Yes
Link : https://security.archlinux.org/AVG-1147
Summary
=======
The package salt before version 2019.2.4-1 is vulnerable to multiple
issues including arbitrary command execution and arbitrary filesystem
access.
Resolution
==========
Upgrade to 2019.2.4-1.
# pacman -Syu "salt>=2019.2.4-1"
The problems have been fixed upstream in version 2019.2.4.
Workaround
==========
Do not expose salt-master to the internet.
Description
===========
- CVE-2020-11651 (arbitrary command execution)
An issue was discovered in SaltStack Salt before 2019.2.4 and 3000
before 3000.2. The salt-master process ClearFuncs class does not
properly validate method calls. This allows a remote user to access
some methods without authentication. These methods can be used to
retrieve user tokens from the salt master and/or run arbitrary commands
on salt minions.
- CVE-2020-11652 (arbitrary filesystem access)
An issue was discovered in SaltStack Salt before 2019.2.4 and 3000
before 3000.2. The salt-master process ClearFuncs class allows access
to some methods that improperly sanitize paths. These methods allow
arbitrary directory access to authenticated users.
Impact
======
A remote unauthenticated user can execute arbitrary commands and access
files on the affected host.
References
==========
https://docs.saltstack.com/en/latest/topics/releases/2019.2.4.html
https://github.com/saltstack/salt/blob/v3000.2_docs/doc/topics/releases/3000.2.rst
https://github.com/saltstack/salt/commit/a67d76b15615983d467ed81371b38b4a17e4f3b7
https://github.com/saltstack/salt/commit/cce7abad9c22d9d50ccee2813acabff8deca35dd
https://security.archlinux.org/CVE-2020-11651
https://security.archlinux.org/CVE-2020-11652
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