CVE-2017-7893

NameCVE-2017-7893
DescriptionIn SaltStack Salt before 2016.3.6, compromised salt-minions can impersonate the salt-master.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
salt (PTS)jessie2014.1.13+ds-3vulnerable
stretch2016.11.2+ds-1+deb9u2vulnerable
sid2017.7.4+dfsg1-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
saltsource(unstable)2016.11.5+ds-1high

Notes

[stretch] - salt <no-dsa> (Minor issue)
[jessie] - salt <ignored> (Vulnerable code introduced later, but older versions did not verify master anyways)
https://docs.saltstack.com/en/2017.7/topics/releases/2016.3.6.html
https://github.com/saltstack/salt/issues/48939
https://patch-diff.githubusercontent.com/raw/saltstack/salt/pull/40159.patch
https://patch-diff.githubusercontent.com/raw/saltstack/salt/pull/40206.patch
The behaviour though was back off by default in a later commit again
cf. https://github.com/saltstack/salt/pull/40206
The fix is the second part of the #40159 PR, but the behaviour is turned
off by default and needs considerations of admins before enabling. We still
consider the issue as fixed starting with this change. Details in
https://github.com/saltstack/salt/issues/48939#issuecomment-410777638

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