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USN-4769-1: Salt vulnerabilities

15 March 2021

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 allowed remote attackers to write to
arbitrary files via a special crafted file. An attacker could use this
vulnerability to cause a DoS or possibly execute arbitrary code. This
issue only affected Ubuntu 14.04 ESM. (CVE-2014-3563)

Andreas Stieger discovered that Salt exposed git usernames and passwords
in log files. An attacker could use this issue to retrieve sensitive
information. This issue only affected Ubuntu 14.04 ESM. (CVE-2015-6918).

It was discovered that Salt exposed password authentication
credentials in log files. An attacker could use this issue to retrieve
sensitive information. This issue only affected Ubuntu 14.04 ESM.
(CVE-2015-6941)

It was discovered that Salt allowed remote attackers to write to
arbitrary files via a special crafted file. An attacker could use this
issue to cause a DoS or possibly execute arbitrary code. (CVE-2017-12791,
CVE-2017-14695, CVE-2017-14696)

It was discovered that Salt allowed remote attackers to determine which
files exist on the server. An attacker could use this issue to extract
sensitive information. This issue only affected Ubuntu 16.04 ESM.
(CVE-2018-15750)

It was discovered that Salt allowed users to bypass authentication. An
attacker could use this issue to extract sensitive information, execute
arbitrary code or crash the server. This issue only affected Ubuntu 16.04
ESM. (CVE-2018-15751)

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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.

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Update instructions

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

Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-4459-1: salt-syndic, salt-master, salt, salt-cloud, salt-minion, salt-common, salt-ssh, salt-doc, salt-proxy, salt-api

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Further reading