GitLab versions 8.9.x and above contain a critical security flaw in the import/export project feature of GitLab. Added in GitLab 8.9, this feature allows a user to export and then re-import their projects as tape archive files (tar). All GitLab versions prior to 8.13.0 restricted this feature to administrators only. Starting with version 8.13.0 this feature was made available to all users. This feature did not properly check for symbolic links in user-provided archives and therefore it was possible for an authenticated user to retrieve the contents of any file accessible to the GitLab service account. This included sensitive files such as those that contain secret tokens used by the GitLab service to authenticate users. GitLab CE and EE versions 8.13.0 through 8.13.2, 8.12.0 through 8.12.7, 8.11.0 through 8.11.10, 8.10.0 through 8.10.12, and 8.9.0 through 8.9.11 are affected.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gitlab | Gitlab | 8.9.0 (including) | 8.9.0 (including) |
| Gitlab | Gitlab | 8.9.1 (including) | 8.9.1 (including) |
| Gitlab | Gitlab | 8.9.2 (including) | 8.9.2 (including) |
| Gitlab | Gitlab | 8.9.3 (including) | 8.9.3 (including) |
| Gitlab | Gitlab | 8.9.4 (including) | 8.9.4 (including) |
| Gitlab | Gitlab | 8.9.5 (including) | 8.9.5 (including) |
| Gitlab | Gitlab | 8.9.6 (including) | 8.9.6 (including) |
| Gitlab | Gitlab | 8.9.7 (including) | 8.9.7 (including) |
| Gitlab | Gitlab | 8.9.8 (including) | 8.9.8 (including) |
| Gitlab | Gitlab | 8.9.9 (including) | 8.9.9 (including) |
| Gitlab | Gitlab | 8.9.10 (including) | 8.9.10 (including) |
| Gitlab | Gitlab | 8.9.11 (including) | 8.9.11 (including) |
| Gitlab | Gitlab | 8.10.0 (including) | 8.10.0 (including) |
| Gitlab | Gitlab | 8.10.1 (including) | 8.10.1 (including) |
| Gitlab | Gitlab | 8.10.2 (including) | 8.10.2 (including) |
| Gitlab | Gitlab | 8.10.3 (including) | 8.10.3 (including) |
| Gitlab | Gitlab | 8.10.4 (including) | 8.10.4 (including) |
| Gitlab | Gitlab | 8.10.5 (including) | 8.10.5 (including) |
| Gitlab | Gitlab | 8.10.6 (including) | 8.10.6 (including) |
| Gitlab | Gitlab | 8.10.7 (including) | 8.10.7 (including) |
| Gitlab | Gitlab | 8.10.8 (including) | 8.10.8 (including) |
| Gitlab | Gitlab | 8.10.9 (including) | 8.10.9 (including) |
| Gitlab | Gitlab | 8.10.10 (including) | 8.10.10 (including) |
| Gitlab | Gitlab | 8.10.11 (including) | 8.10.11 (including) |
| Gitlab | Gitlab | 8.10.12 (including) | 8.10.12 (including) |
| Gitlab | Gitlab | 8.11.0 (including) | 8.11.0 (including) |
| Gitlab | Gitlab | 8.11.1 (including) | 8.11.1 (including) |
| Gitlab | Gitlab | 8.11.2 (including) | 8.11.2 (including) |
| Gitlab | Gitlab | 8.11.3 (including) | 8.11.3 (including) |
| Gitlab | Gitlab | 8.11.4 (including) | 8.11.4 (including) |
| Gitlab | Gitlab | 8.11.5 (including) | 8.11.5 (including) |
| Gitlab | Gitlab | 8.11.6 (including) | 8.11.6 (including) |
| Gitlab | Gitlab | 8.11.7 (including) | 8.11.7 (including) |
| Gitlab | Gitlab | 8.11.8 (including) | 8.11.8 (including) |
| Gitlab | Gitlab | 8.11.9 (including) | 8.11.9 (including) |
| Gitlab | Gitlab | 8.12.0 (including) | 8.12.0 (including) |
| Gitlab | Gitlab | 8.12.1 (including) | 8.12.1 (including) |
| Gitlab | Gitlab | 8.12.2 (including) | 8.12.2 (including) |
| Gitlab | Gitlab | 8.12.3 (including) | 8.12.3 (including) |
| Gitlab | Gitlab | 8.12.4 (including) | 8.12.4 (including) |
| Gitlab | Gitlab | 8.12.5 (including) | 8.12.5 (including) |
| Gitlab | Gitlab | 8.12.6 (including) | 8.12.6 (including) |
| Gitlab | Gitlab | 8.12.7 (including) | 8.12.7 (including) |
| Gitlab | Gitlab | 8.13.0 (including) | 8.13.0 (including) |
| Gitlab | Gitlab | 8.13.1 (including) | 8.13.1 (including) |
| Gitlab | Gitlab | 8.13.2 (including) | 8.13.2 (including) |
| Gitlab | Ubuntu | artful | * |
| Gitlab | Ubuntu | yakkety | * |
| Gitlab | Ubuntu | zesty | * |
There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:
Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:
Information exposures can occur in different ways:
It is common practice to describe any loss of confidentiality as an “information exposure,” but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.