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USN-4459-1: Salt vulnerabilities

13 August 2020

Several security issues were fixed in Salt.

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Releases

Packages

  • salt - Infrastructure management built on a dynamic communication bus

Details

It was discovered that Salt allows remote attackers to determine which files
exist on the server. An attacker could use that to extract sensitive
information. (CVE-2018-15750)

It was discovered that Salt has a vulnerability that allows an user to bypass
authentication. An attacker could use that to extract sensitive information,
execute abritrary code or crash the server. (CVE-2018-15751)

It was discovered that Salt is vulnerable to command injection. This allows
an unauthenticated attacker with network access to the API endpoint to
execute arbitrary code on the salt-api host. (CVE-2019-17361)

It was discovered that Salt incorrectly validated method calls and
sanitized paths. A remote attacker could possibly use this issue to access
some methods without authentication. (CVE-2020-11651, CVE-2020-11652)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04
Ubuntu 16.04

After a standard system update you need to restart salt to make all the
necessary changes.

Related notices

  • USN-4769-1: salt-syndic, salt-common, salt-master, salt-cloud, salt-minion, salt-proxy, salt-api, salt-doc, salt, salt-ssh