Actively exploited in the wild
SaltStack Salt Authentication Bypass Vulnerability
SaltStack - Salt · Listed in the CISA KEV since 2021-11-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2020-11651
CriticalCVSS 9.8KEVSummary
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, allowing 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.
Risk Assessment
An attacker can obtain user tokens and execute arbitrary commands on managed servers, leading to full compromise of the Salt-managed infrastructure.
Recommendation
Update SaltStack Salt to version 2019.2.4 or 3000.2 (or later) and restrict network access to salt-master ports.
Other vulnerabilities in SaltStack Salt
See all- CVE-2017-14696High
SaltStack Salt before 2016.3.8, 2016.11.x before 2016.11.8, and 2017.7.x before 2017.7.2 allows remote attackers to cause a denial of service via a crafted authentication request.
- CVE-2017-5200High
Salt-api in SaltStack before version 2015.8.13, 2016.3.x before 2016.3.5, and 2016.11.x before 2016.11.2 allows arbitrary command execution on a salt-master via Salt's ssh_client.
- CVE-2017-5192High
In SaltStack Salt versions before 2015.8.13, 2016.3.x before 2016.3.5, and 2016.11.x before 2016.11.2, the local_batch client from salt-api does not respect external authentication, allowing all authentication to be bypassed.
- CVE-2017-8109High
The salt-ssh minion code in SaltStack Salt 2016.11 before 2016.11.4 copied over configuration from the Salt Master without adjusting permissions, which might leak credentials to local attackers on configured minions.
- CVE-2020-16846CriticalActively exploited
An issue was discovered in SaltStack Salt through 3002. Sending crafted web requests to the Salt API, with the SSH client enabled, can result in shell injection.
- CVE-2017-14695Critical
Directory traversal vulnerability in minion id validation in SaltStack Salt before version 2016.3.8, 2016.11.x before 2016.11.8, and 2017.7.x before 2017.7.2 allows remote minions with incorrect credentials to authenticate to a master via a crafted minion ID.
- CVE-2017-12791Critical
CVE-2017-12791 describes a vulnerability in minion ID validation in SaltStack Salt before version 2016.11.7 and 2017.7.x before 2017.7.1. This allows remote minions with incorrect credentials to authenticate to a master using a crafted minion ID.
Original NVD description (English source)
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.