GHSA-vqv5-385r-2hf8

Source

https://github.com/advisories/GHSA-vqv5-385r-2hf8

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/02/GHSA-vqv5-385r-2hf8/GHSA-vqv5-385r-2hf8.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-vqv5-385r-2hf8

Aliases

GO-2025-3455

Published

2025-02-05T21:30:35Z

Modified

2025-02-06T18:05:15Z

Severity

7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N CVSS Calculator

Summary

Contrast's unauthenticated recovery allows Coordinator impersonation

Details

Impact

Recovering coordinators do not verify the seed provided by the recovering party. This allows an attacker to set up a coordinator with a manifest that passes validation, but with a secret seed controlled by the attacker.

If network traffic is redirected from the legitimate coordinator to the attacker's coordinator, a workload owner is susceptible to impersonation if either

they set a new manifest and don't compare the root CA cert with the existing one (this is the default of the contrast CLI) or
they verify the coordinator and don't compare the root CA cert with a trusted reference.

Under these circumstances, the attacker can:

Issue certificates that chain back to the attacker coordinator's root CA.
Recover arbitrary workload secrets of workloads deployed after the attack.

This issue does not affect the following:

secrets of the legitimate coordinator (seed, workload secrets, CA)
integrity of workloads, even when used with the rogue coordinator
certificates chaining back to the mesh CA

Patches

This issue is patched in Contrast v1.4.1.

Workarounds

The issue can be avoided by verifying the coordinator root CA cert against expectations.

At the first set call, keep a copy of the CA cert returned by the coordinator.
After subsequent set or verify calls, compare the returned CA cert with the backup copy. If it matches bit-for-bit, the coordinator is legitimate.

Database specific

{
    "nvd_published_at": null,
    "github_reviewed": true,
    "github_reviewed_at": "2025-02-05T21:30:35Z",
    "severity": "HIGH",
    "cwe_ids": [
        "CWE-285"
    ]
}

References

Affected packages

Go / github.com/edgelesssys/contrast

Package

Name: github.com/edgelesssys/contrast; View open source insights on deps.dev
Purl: pkg:golang/github.com/edgelesssys/contrast

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.4.1

Database specific

{
    "last_known_affected_version_range": "<= 1.4.0"
}