cbcvebase.
CVE-2021-25283
published 2021-02-27

CVE-2021-25283: An issue was discovered in through SaltStack Salt before 3002.5. The jinja renderer does not protect against server side template injection attacks.

PriorityP261critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
10.43%
95.2th percentile
An issue was discovered in through SaltStack Salt before 3002.5. The jinja renderer does not protect against server side template injection attacks.

Affected

45 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debiandebian_linux
debiandebian_linux
fedoraprojectfedora
fedoraprojectfedora
fedoraprojectfedora
saltstacksalt< 2015.8.102015.8.10
saltstacksalt>= 0 < 2015.8.102015.8.10
saltstacksalt>= 0 < 2015.8.132015.8.13
saltstacksalt>= 0 < 2015.8.8+ds-1ubuntu0.1+esm22015.8.8+ds-1ubuntu0.1+esm2
saltstacksalt>= 0 < 2017.7.4+dfsg1-1ubuntu18.04.2+esm12017.7.4+dfsg1-1ubuntu18.04.2+esm1
saltstacksalt>= 2015.8.11 < 2015.8.132015.8.13
saltstacksalt>= 2015.8.11 < 2015.8.132015.8.13
saltstacksalt>= 2016.11.0 < 2016.11.32016.11.3
saltstacksalt>= 2016.11.4 < 2016.11.52016.11.5
saltstacksalt>= 2016.11.4 < 2016.11.52016.11.5
saltstacksalt>= 2016.11.7 < 2016.11.102016.11.10
saltstacksalt>= 2016.11.7 < 2016.11.102016.11.10
saltstacksalt>= 2016.3.0 < 2016.3.42016.3.4
saltstacksalt>= 2016.3.0 < 2016.3.42016.3.4
saltstacksalt>= 2016.3.0 < 2016.11.52016.11.5
saltstacksalt>= 2016.3.5 < 2016.3.62016.3.6
saltstacksalt>= 2016.3.5 < 2016.3.62016.3.6
saltstacksalt>= 2016.3.7 < 2016.3.82016.3.8
saltstacksalt>= 2016.3.7 < 2016.3.82016.3.8

Detection & IOCsextracted from sources · hover to see the quote

  • The vulnerable component is the Jinja renderer in SaltStack Salt; monitor for server-side template injection payloads delivered through Salt's Jinja rendering pipeline
  • Flag any Salt installations running versions prior to 3002.5 as vulnerable to SSTI via the Jinja renderer
  • ·Red Hat Ceph Storage 2 ships the affected salt package but will NOT receive a fix, as Salt was deprecated in RHCS 2.5 and RHSCON-2 has reached End of Life
  • ·The highest threat is to data confidentiality, integrity, and system availability — treat successful exploitation as full system compromise

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_redhat9.8CRITICAL
vendor_ubuntu9.8CRITICAL
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.