Rancher does not automatically clean up a user deleted or disabled from the configured Authentication Provider

A vulnerability has been identified in which Rancher does not automatically clean up a user which has been deleted from the configured authentication provider (AP). This characteristic also applies to disabled or revoked users, Rancher will not reflect these modifications which may leave the user’s tokens still usable.

Rancher's External RoleTemplates can lead to privilege escalation

A Improper Privilege Management vulnerability in SUSE rancher in RoleTemplateobjects when external=true is set can lead to privilege escalation in specific scenarios.This issue affects rancher: from 2.7.0 before 2.7.14, from 2.8.0 before 2.8.5.

Rancher user retains access to clusters despite Global Role removal

A vulnerability has been identified within Rancher Manager, where after removing a custom GlobalRole that gives administrative access or the corresponding binding, the user still retains access to clusters. This only affects custom Global Roles that have a * on * in * rule for resources or have a * on * rule for non-resource URLs

Rancher agents can be hijacked by taking over the Rancher Server URL

A vulnerability has been identified within Rancher that can be exploited in narrow circumstances through a man-in-the-middle (MITM) attack. An attacker would need to have control of an expired domain or execute a DNS spoofing/hijacking attack against the domain to exploit this vulnerability. The targeted domain is the one used as the Rancher URL.

Rancher's RKE1 Encryption Config kept in plain-text within cluster AppliedSpec

A vulnerability has been identified in which an RKE1 cluster keeps constantly reconciling when secrets encryption configuration is enabled. When reconciling, the Kube API secret values are written in plaintext on the AppliedSpec. Cluster owners, Cluster members, and Project members (for projects within the cluster), all have RBAC permissions to view the cluster object from the apiserver.

Stored Cross-site Scripting vulnerability in Rancher UI

A: Improper Neutralization of Input During Web Page Generation vulnerability in SUSE rancher allows a malicious actor to perform a Stored XSS attack through the cluster description field. This issue affects rancher: from 2.9.0 before 2.9.4.

Users can issue watch commands for arbitrary resources

A Exposure of Sensitive Information to an Unauthorized Actor vulnerability in SUSE rancher which allows users to watch resources they are not allowed to access, when they have at least some generic permissions on the type. This issue affects rancher: before 2175e09, before 6e30359, before c744f0b.

Rancher Helm Applications may have sensitive values leaked

A Exposure of Sensitive Information to an Unauthorized Actor vulnerability in SUSE rancher allowing any users with GET access to the Rancher Manager Apps Catalog to read any sensitive information that are contained within the Apps’ values. Additionally, the same information leaks into auditing logs when the audit level is set to equal or above 2. This issue affects rancher: from 2.8.0 before 2.8.10, from 2.9.0 before 2.9.4.

Rancher Fleet Helm Values are stored inside BundleDeployment in plain text

Unauthorized disclosure of sensitive data: Any user with `GET` or `LIST` permissions on `BundleDeployment` resources could retrieve Helm values containing credentials or other secrets.

Rancher affected by unauthenticated Denial of Service

A vulnerability has been identified within Rancher Manager in which it did not enforce request body size limits on certain public (unauthenticated) and authenticated API endpoints. This allows a malicious user to exploit this by sending excessively large payloads, which are fully loaded into memory during processing, leading to Denial of Service (DoS).

Rancher update on users can deny the service to the admin

A vulnerability has been identified within Rancher Manager where a missing server-side validation on the `.username` field in Rancher can allow users with update permissions on other User resources to cause denial of access for targeted accounts.

Rancher CLI SAML authentication is vulnerable to phishing attacks

A vulnerability has been identified within Rancher Manager whereby the SAML authentication from the Rancher CLI tool is vulnerable to phishing attacks. The custom authentication protocol for SAML-based providers can be abused to steal Rancher’s authentication tokens.

Rancher exposes sensitive information through audit logs

A vulnerability has been identified in Rancher Manager, where sensitive information, including secret data, cluster import URLs, and registration tokens, is exposed to any entity with access to Rancher audit logs.

Unauthenticated stack overflow in /v3-public/authproviders API

A Stack-based Buffer Overflow vulnerability in SUSE rancher allows for denial of service.This issue affects rancher: from 2.8.0 before 2.8.13, from 2.9.0 before 2.9.7, from 2.10.0 before 2.10.3.

Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login

A Improper Access Control vulnerability in SUSE rancher allows a local user to impersonate other identities through SAML Authentication on first login. This issue affects rancher: from 2.8.0 before 2.8.13, from 2.9.0 before 2.9.7, from 2.10.0 before 2.10.3.

Rancher: Restricted Administrator can change Administrator's passwords

A Incorrect Privilege Assignment vulnerability in SUSE rancher allows a Restricted Administrator to change the password of Administrators and take over their accounts. This issue affects rancher: from 2.8.0 before 2.8.14, from 2.9.0 before 2.9.8, from 2.10.0 before 2.10.4.

Rancher sends sensitive information to external services through the `/meta/proxy` endpoint

A vulnerability has been identified within Rancher Manager whereby `Impersonate-Extra-*` headers are being sent to an external entity, for example `amazonaws.com`, via the `/meta/proxy` Rancher endpoint. These headers may contain identifiable and/or sensitive information e.g. email addresses.

Rancher Backup Operator pod's logs leak S3 tokens

A vulnerability has been identified within the Rancher Backup Operator, resulting in the leakage of S3 tokens (both accessKey and secretKey) into the rancher-backup-operator pod's logs.

Rancher CLI skips TLS verification on Rancher CLI login command

A vulnerability has been identified within Rancher Manager, where using self-signed CA certificates and passing the -skip-verify flag to the Rancher CLI login command without also passing the –cacert flag results in the CLI attempting to fetch CA certificates stored in Rancher’s setting cacerts.

Rancher Labs rancher server 1.2.0+ is vulnerable to authenticated users disabling access control via an API call. This is fixed in versions rancher/server:v1.2.4, rancher/server:v1.3.5, rancher/server:v1.4.3, and rancher/server:v1.5.3.