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GHSA-h5f8-crrq-4pw8
No affected components available
Impact
When the Contrast initializer is configured with a CONTRAST_LOG_LEVEL of info or debug, the workload secret is logged to stderr and written to Kubernetes logs.
Since info is the default setting, this affects all Contrast installations that don't customize their initializers' log level.
The following audiences are intended to have access to workload secrets (see https://docs.edgeless.systems/contrast/1.7/architecture/secrets#workload-secrets):
- Contrast Coordinator (can derive all workload secrets)
- Contrast Initializer (obtains only the secret configured in the manifest)
- Seedshare owner (can derive all workload secrets)
- Workload owner (can update manifests to obtain secrets)
This vulnerability allows the following parties unintended access to workload secrets issued by a Coordinator:
- Kubernetes users with
getorlistpermission onpods/logs. - Others with read access to the Kubernetes log storage (most notably, the cloud provider).
This vulnerability does not affect scenarios where workload secrets are not used by the application (directly or with secure persistence). Applications designed for workload owner exclusion can't use workload secrets and are thus unaffected.
Patches
N/A
Workarounds
This vulnerability can be mitigated by adding an environment variable CONTRAST_LOG_LEVEL=warn to the initializer after running contrast generate, and then running contrast generate again.
References
N/A
The vulnerability can be exploited over a local network, such as Wi-Fi. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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