SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2020-11651

SaltStack Salt Authentication Bypass Vulnerability

KEVCRITICAL 9.8EPSS 96.6%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. The salt-master process ClearFuncs class does not properly validate method calls. This allows a remote user to access some methods without authentication. These methods can be used to retrieve user tokens from the salt master and/or run arbitrary commands on salt minions.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
96.61% probability · 100th percentile
CISA KEV
Listed 3 November 2021 · due 3 May 2022
Affected
saltstack/salt · opensuse/leap · debian/debian linux · canonical/ubuntu linux · vmware/application remote collector
Source
cve@mitre.org

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-11651

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.