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CVE-2021-25283: SaltStack Salt Server Side Template Injection

May 24, 2022 (updated October 23, 2024)

An issue was discovered in through SaltStack Salt before 3002.5. The jinja renderer does not protect against server side template injection attacks.

References

  • github.com/advisories/GHSA-xgmh-gfxw-2hvv
  • github.com/pypa/advisory-database/tree/main/vulns/salt/PYSEC-2021-52.yaml
  • github.com/saltstack/salt
  • github.com/saltstack/salt/blob/8f9405cf8e6f7d7776d5000841c886dec6d96250/doc/topics/releases/3001.5.rst
  • github.com/saltstack/salt/blob/8f9405cf8e6f7d7776d5000841c886dec6d96250/doc/topics/releases/3002.5.rst
  • github.com/saltstack/salt/releases
  • lists.debian.org/debian-lts-announce/2021/11/msg00009.html
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7GRVZ5WAEI3XFN2BDTL6DDXFS5HYSDVB
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FUGLOJ6NXLCIFRD2JTXBYQEMAEF2B6XH
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YOGNT2XWPOYV7YT75DN7PS4GIYWFKOK5
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7GRVZ5WAEI3XFN2BDTL6DDXFS5HYSDVB
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FUGLOJ6NXLCIFRD2JTXBYQEMAEF2B6XH
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YOGNT2XWPOYV7YT75DN7PS4GIYWFKOK5
  • nvd.nist.gov/vuln/detail/CVE-2021-25283
  • saltproject.io/security_announcements/active-saltstack-cve-release-2021-feb-25
  • security.gentoo.org/glsa/202103-01
  • security.gentoo.org/glsa/202310-22
  • www.debian.org/security/2021/dsa-5011

Code Behaviors & Features

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Affected versions

All versions before 2015.8.13, all versions starting from 2016.3.0 before 2016.11.5, all versions starting from 2016.11.7 before 2016.11.10, all versions starting from 2017.5.0 before 2017.7.8, all versions starting from 2018.2.0 up to 2018.3.5, all versions starting from 2019.2.0 before 2019.2.8, all versions starting from 3000 before 3000.7, all versions starting from 3001 before 3001.5, all versions starting from 3002 before 3002.5

Fixed versions

  • 2015.8.13
  • 2016.11.5
  • 2016.11.10
  • 2017.7.8
  • 2019.2.8
  • 3000.7
  • 3001.5
  • 3002.5

Solution

Upgrade to versions 2015.8.13, 2016.11.10, 2016.11.5, 2017.7.8, 2019.2.8, 3000.7, 3001.5, 3002.5 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Source file

pypi/salt/CVE-2021-25283.yml

Spotted a mistake? Edit the file on GitLab.

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