GHSA-9c5p-35gj-jqp4 CVE-2024-52282 GO-2024-3280
Rancher Helm Applications may have sensitive values leaked
- Severity
- 6.2 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 0.45%
- Chance of exploitation in the next 30 days. Higher than 39.31% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- Fix
2.8.10- Upgrade github.com/rancher/rancher to this version or later
Description
Impact
A vulnerability has been identified within Rancher Manager whereby applications installed via Rancher Manager Apps Catalog store their Helm values directly into the Apps Custom Resource Definition, resulting in any users with GET access to it to be able 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.
Application charts without sensitive data are not affected by this vulnerability. This vulnerability impacts any Helm applications installed on a Rancher Manager cluster, regardless of it being installed via the Marketplace or using the helm cli.
Please consult the associated MITRE ATT&CK - Technique - Exploitation for Privilege Escalation for further information about this category of attack.
Patches
Patched versions include Rancher Manager 2.9.5 and 2.8.10. The fix ensures that all Helm values for each App are stored as Kubernetes Secrets. After the upgrade, users are recommended to rotate passwords and secrets that may have been leaked while using the affected versions.
Workarounds
No workarounds are available, therefore users are advised to upgrade to a patched version of Rancher Manager. For deployments that can’t be upgraded in a timely fashion, admins are advised to limit the impact by reducing the amount of users who can get or list the Apps’ CRD. Additionally, the same applies to the auditing logs if the Rancher Manager has audit logs enabled and set to level 2 or above.
For more information
If you have any questions or comments about this advisory:
- Reach out to the SUSE Rancher Security team for security related inquiries.
- Open an issue in the Rancher repository.
- Verify with our support matrix and product support lifecycle.
Affected versions
Go
| Package | Vulnerable | Fixed in |
|---|---|---|
| github.com/rancher/rancher | >= 2.8.0, < 2.8.10 |
2.8.10 |
| github.com/rancher/rancher | >= 2.9.0, < 2.9.4 |
2.9.4 |
| github.com/rancher/rancher | all versions |
No fix yet |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
github.com/rancher/rancher Go → 2.8.10
- go
go get github.com/rancher/rancher@v2.8.10 && go mod tidy
Severity breakdown
CVSS 3.1 6.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- High
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Weakness
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
How to prevent it
- Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-4j6x-2764-m8gh Rancher has over-inclusive team membership expansion in GitHub App authentication provider | High | Also affects github.com/rancher/rancher |
| GHSA-vx8h-4prv-g744 Rancher has Privilege Escalation from Project Owner to Host | High | Also affects github.com/rancher/rancher |
| GHSA-mhc6-2gfq-xx62 Rancher vulnerable to command injection through unsanitized YAML parameter | Critical | Also affects github.com/rancher/rancher |
| GHSA-5v3h-x4wf-5c35 Rancher Extensions have arbitrary file access via path traversal | High | Also affects github.com/rancher/rancher |
| GHSA-gqf8-rvrh-g7w6 Rancher cloud credentials can be used through proxy API by users without access | Critical | Also affects github.com/rancher/rancher |
| GHSA-hwm2-4ph6-w6m5 Rancher's restricted PodSecurityPolicy does not prevent containers from running as a privileged user | High | Also affects github.com/rancher/rancher |
| GHSA-mc24-7m59-4q5p Rancher CLI skips TLS verification on Rancher CLI login command | Medium | Also affects github.com/rancher/rancher |
| GHSA-mw39-9qc2-f7mg Rancher exposes sensitive information through audit logs | Medium | Also affects github.com/rancher/rancher |
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