In most cases, trust boundaries are violated when a secret is exposed in a source code repository or an uncontrolled deployment environment.
Unintended people who don’t need to know the secret might get access to it. They might then be able to use it to gain unwanted access to associated
services or resources.
The trust issue can be more or less severe depending on the people’s role and entitlement.
If an attacker gains access to a Docker swarm token, they might be able to add new workers or managers to the swarm.
What is the potential impact?
An attacker with control over a manager or worker node might be able to access sensitive information pushed to those malicious nodes. If the
compromised token allows joining a manager node to the swarm, this one could compromise other legitimate nodes by pushing malicious tasks to them.
Compromise of sensitive data
If the affected service is used to store or process personally identifiable information or other sensitive data, attackers knowing an
authentication secret could be able to access it. Depending on the type of data that is compromised, it could lead to privacy violations, identity
theft, financial loss, or other negative outcomes.
In most cases, a company suffering a sensitive data compromise will face a reputational loss when the security issue is publicly disclosed.
Infrastructure takeover
By obtaining a leaked secret, an attacker can gain control over your organization’s Docker Swarm infrastructure. They can modify DNS settings,
redirect traffic, or launch malicious instances that can be used for various nefarious activities, including launching DDoS attacks, hosting phishing
websites, or distributing malware. Malicious instances may also be used for resource-intensive tasks such as cryptocurrency mining.
This can result in legal liability, but also increased costs, degraded performance, and potential service disruptions.
Furthermore, corporate Docker Swarm infrastructures are often connected to other services and to the internal networks of the organization. Because
of this, cloud infrastructure is often used by attackers as a gateway to other assets. Attackers can leverage this gateway to gain access to more
services, to compromise more business-critical data and to cause more damage to the overall infrastructure.
