In affected versions of Octopus Server it was identified that when a sensitive value is a substring of another value, sensitive value masking will only partially work.

In affected versions of Octopus Server it is possible to use the Git Connectivity test function on the VCS project to initiate an SMB request resulting in the potential for an NTLM relay attack.

In affected versions of Octopus Server it is possible to reveal information about teams via the API due to an Insecure Direct Object Reference (IDOR) vulnerability

In affected versions of Octopus Server it is possible for a session token to be valid indefinitely due to improper validation of the session token parameters.

In affected versions of Octopus Server it is possible to reveal the existence of resources in a space that the user does not have access to due to verbose error messaging.

In affected versions of Octopus Server where access is managed by an external authentication provider, it was possible that the API key/keys of a disabled/deleted user were still valid after the access was revoked.

In affected versions of Octopus Server it is possible for target discovery to print certain values marked as sensitive to log files in plaint-text in when verbose logging is enabled.

In Octopus Deploy 3.x before 3.15.4, an authenticated user with PackagePush permission to upload packages could upload a maliciously crafted NuGet package, potentially overwriting other packages or modifying system files. This is a directory traversal in the PackageId value.

In affected versions of Octopus Deploy it is possible for certain types of sensitive variables to inadvertently become unmasked when viewed in variable preview.

In affected versions of Octopus Deploy users of certain browsers using AD to sign-in to Octopus Server were able to bypass authentication checks and be redirected to the configured redirect url without any validation.

In affected versions of Octopus Server the help sidebar can be customized to include a Cross-Site Scripting payload in the support link. This was initially resolved in advisory 2022-07 however it was identified that the fix could be bypassed in certain circumstances. A different approach was taken to prevent the possibility of the support link being susceptible to XSS

In affected versions of Octopus Deploy it is possible to upload a zipbomb file as a task which results in Denial of Service

In affected versions of Octopus Deploy it is possible for a user to view Workerpools without being explicitly assigned permissions to view these items

In affected versions of Octopus Deploy it is possible for a user to view Tagsets without being explicitly assigned permissions to view these items

In affected versions of Octopus Deploy it is possible for a user to introduce code via offline package creation

In affected versions of Octopus Deploy it is possible to render user supplied input into the webpage

In affected versions of Octopus Deploy it is possible to upload a zipbomb file as a task which results in Denial of Service

In affected versions of Octopus Deploy it is possible to discover network details via error message

In affected versions of Octopus Server it is possible for the OpenID client secret to be logged in clear text during the configuration of Octopus Server.

In affected versions of Octopus Deploy, there is no logging of changes to artifacts within Octopus Deploy.