SECRET-SEN Exam Dumps - CyberArk Sentry Secrets Manager

The cause of the issue is that the host does not have access to the credential. This can happen if the host does not have the correct permissions or if the credential is not properly configured in the Vault Conjur Synchronizer.

The Vault Conjur Synchronizer is a tool that enables the integration between CyberArk Vault and Conjur Secrets Manager Enterprise. The Synchronizer synchronizes secrets that are stored and managed in the CyberArk Vault with Conjur Enterprise, and allows them to be used via Conjur clients, APIs, and SDKs. The Synchronizer creates and updates Conjur policies and variables based on the Vault accounts and safes, and assigns permissions to Conjur hosts based on the Vault allowed machines.

To fix this issue, the host needs to have the permission to access the credential in Conjur. This can be done by adding the host to the allowed machines list of the Vault account that corresponds to the credential, and synchronizing the changes with Conjur. Alternatively, the host can be granted the permission to access the credential in Conjur by modifying the Conjur policy that corresponds to the Vault safe that contains the credential, and loading the policy to Conjur. However, this may cause conflicts or inconsistencies with the Synchronizer, and is not recommended.

For more information, see the CyberArk Vault Synchronizer docs1 and the Synchronizer Troubleshooting guide2.

According to the CyberArk Sentry Secrets Manager documentation1, the steps to failback to the primary site after a manual failover to the disaster recovery site are as follows:

• On the DR site, stop the Conjur Leader node using the command docker stop .
• On the primary site, generate a seed for the new Leader node using the command evoke seed leader . This will create a file named .tar in the current directory.
• On the primary site, copy the Leader seed file to the new Leader server using the command scp .tar :.tar
• On the new Leader server, create a new container using the same name as the one you just stopped, and load the Leader seed file using the command docker run --name -d --restart=always -v /var/log/conjur:/var/log/conjur -v /opt/conjur/backup:/opt/conjur/backup -p "443:443" -p "5432:5432" -p "1999:1999" cyberark/conjur:latest seed fetch .tar
• On the new Leader server, configure the Conjur Leader node using the command evoke configure leader -h -p
• On the new Leader server, reconfigure the Vault Conjur Synchronizer to point to the new Conjur Leader using the command evoke vault sync set
• On the DR site, generate a seed for the new Standby node using the command evoke seed standby . This will create a file named .tar in the current directory.
• On the DR site, copy the Standby seed file to the new Standby server using the command scp .tar :.tar
• On the new Standby server, create a new container using the same name as the one you just stopped, and load the Standby seed file using the command docker run --name -d --restart=always -v /var/log/conjur:/var/log/conjur -v /opt/conjur/backup:/opt/conjur/backup -p "443:443" -p "5432:5432" -p "1999:1999" cyberark/conjur:latest seed fetch .tar
• On the new Standby server, re-enroll the node to the cluster using the command evoke cluster enroll

The other options are not correct, as they are either unnecessary or incorrect. Contacting CyberArk for a new license file is not required, as the license is valid for both sites. Reconfiguring the Vault Conjur Synchronizer to point to the new Conjur Leader is a step that should be done on the new Leader server, not on the DR site. Triggering autofailover to promote the Standby in Site A to Leader is not possible, as the Standby node is not aware of the manual failover and will not accept the promotion request.

According to the CyberArk Sentry Secrets Manager documentation, Conjur is a secrets management solution that consists of a leader node and one or more follower nodes. The leader node is responsible for managing the secrets, policies, and audit records, while the follower nodes are read-only replicas that can serve secrets requests from applications. To achieve high availability in AWS cloud infrastructure, the minimally viable Conjur deployment architecture is to have one follower in each availability zone (AZ) and a load balancer for the region. This way, if one AZ fails, the applications can still access secrets from another AZ through the load balancer. Having two followers in each region, load balanced for the region, is not enough to ensure high availability, as a regional outage can affect both followers. Having two followers in each AZ, load balanced for the region, is more than necessary, as one follower per AZ can handle the secrets requests. Having two followers in each region, load balanced across all regions, is not feasible, as Conjur does not support cross-region replication. References: 1: Conjur Architecture 2: Deploying Conjur on AWS

This is the most likely cause of this issue because it creates a discrepancy between the passwords stored in the Primary Vault and the DR Vault, which affects the Vault Conjur Synchronizer service (Synchronizer) and the application. The Synchronizer is a service that synchronizes secrets from the CyberArk Vault to the Conjur database. The application is a client that retrieves secrets from the Conjur database using the Conjur REST API. The CPM is a component that manages the lifecycle of the passwords stored in the CyberArk Vault, such as changing, verifying, and reconciling them. If the CPM is writing password changes to the Primary Vault while the Synchronizer is configured to replicate from the DR Vault, the following scenario may occur:

• The CPM changes the password for an account in the Primary Vault and updates the password value in the Vault database.
• The Synchronizer does not detect the password change in the DR Vault, as the DR Vault database has not been updated yet with the new password value.
• The Synchronizer does not sync the new password value to the Conjur database, as it assumes that the password value in the DR Vault database is the latest and correct one.
• The application requests the password value from the Conjur database and receives the old password value, which is different from the new password value in the Primary Vault database.
• The application tries to use the old password value to access the target platform or device and fails, as the target platform or device expects the new password value.

This answer is based on the CyberArk Secrets Manager documentation1 and the CyberArk Secrets Manager training course2.

ServiceAccount and StatefulSet are two of the Kubernetes resources/objects that can be used as Conjur identities, in addition to Namespace and Deployment. Conjur identities are the entities that can authenticate with Conjur and retrieve secrets from it. Conjur supports authenticating Kubernetes resources/objects using the Conjur Kubernetes Authenticator, which is a sidecar or init container that runs alongside the application container and injects the Conjur access token into a shared volume. The application container can then use the access token to fetch secrets from Conjur.

A ServiceAccount is a Kubernetes resource that represents an identity for processes that run in a pod. ServiceAccounts can be used to grant specific privileges and permissions to the pod, and to enable communication with the Kubernetes API server. A ServiceAccount can be used as a Conjur identity by annotating it with the Conjur authentication policy branch ID, and by creating a Conjur host entity that matches the ServiceAccount name and namespace. The Conjur Kubernetes Authenticator will then use the ServiceAccount token to authenticate the pod with Conjur and obtain the Conjur access token.

A StatefulSet is a Kubernetes resource that manages the deployment and scaling of a set of pods, and provides guarantees about the ordering and uniqueness of these pods. StatefulSets are useful for applications that require stable and persistent identities, such as databases, message brokers, or distributed systems. A StatefulSet can be used as a Conjur identity by annotating it with the Conjur authentication policy branch ID, and by creating a Conjur host entity that matches the StatefulSet name and namespace. The Conjur Kubernetes Authenticator will then use the pod name and namespace to authenticate the pod with Conjur and obtain the Conjur access token.

The other options are not valid Kubernetes resources/objects that can be used as Conjur identities. Replica sets are a lower-level resource that are usually managed by higher-level resources such as Deployments or StatefulSets, and do not have their own identity or annotations. Secrets are a Kubernetes resource that store sensitive information such as passwords, tokens, or keys, and are not meant to be used as identities. Tokenreviews are a Kubernetes resource that are used to verify the validity of a ServiceAccount token, and are not meant to be used as identities either. References:

• Securing Secrets in Kubernetes - CyberArk Developer, Section “Conjur Kubernetes Authentication: A Hands-On Demonstration”
• GitHub - cyberark/secrets-provider-for-k8s: Cyberark secrets provider …, Section “Consuming Secrets from CyberArk Secrets Provider”
• Secure your Kubernetes-deployed applications with CyberArk Conjur, Section “How it works”
• Simplify and Improve Container Security Using New CyberArk Conjur …, Section “CyberArk Conjur Enterprise”
• Keeping Secrets Secure on Kubernetes - CyberArk Developer, Section “The Solution”