THREATPORT/VULNERABILITY/CVE-2021-31607
HIGH SEVERITY

CVE-2021-31607

Salt vulnerability

CVSS
7.8
EPSS
3.8%
EPSS pct
89th
Exploited
No known
In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for local privilege escalation on a minion. The attack requires that a file is created with a pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes popen unsafely).
Affected vendor
Saltstack
Affected product
Salt
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-78 — OS Command Injection
Published
2021-04-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2021-31607

  • Confirm whether Saltstack Salt is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-31607.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-31607

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