CVE-2023-49783: No permission checks for editing/deleting records with CSV import form
First published: Tue Jan 23 2024(Updated: )
### Impact Users who don't have edit or delete permissions for records exposed in a `ModelAdmin` can still edit or delete records using the CSV import form, provided they have create permissions. The likelyhood of a user having create permissions but _not_ having edit or delete permissions is low, but it _is_ possible. Note that this doesn't affect any `ModelAdmin` which has had the import form disabled via the [`showImportForm` public property](https://api.silverstripe.org/4/SilverStripe/Admin/ModelAdmin.html#property_showImportForm), nor does it impact the `SecurityAdmin` section. #### Action may be required If you have a custom implementation of [`BulkLoader`](https://api.silverstripe.org/4/SilverStripe/Dev/BulkLoader.html), you should update your implementation to respect permissions when the return value of [`getCheckPermissions()`](https://api.silverstripe.org/4/SilverStripe/Dev/BulkLoader.html#method_getCheckPermissions) is true. If you are using any `BulkLoader` in your own project logic, or maintain a module which uses it, you should consider passing `true` to [`setCheckPermissions()`](https://api.silverstripe.org/4/SilverStripe/Dev/BulkLoader.html#method_setCheckPermissions) if the data is provided by users. **Base CVSS:** [4.3](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:F/RL:O/RC:C&version=3.1) **Reported by:** Guy Sartorelli from Silverstripe ### References - https://www.silverstripe.org/download/security-releases/CVE-2023-49783
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/silverstripe/admin | >=2.0.0<2.1.8 | 2.1.8 |
| composer/silverstripe/admin | >=1.0.0<1.13.19 | 1.13.19 |
| SilverStripe Admin | >=1.0.0<1.13.19 | |
| SilverStripe Admin | >=2.0.0<2.1.8 |
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Reference Links
- https://github.com/silverstripe/silverstripe-admin/security/advisories/GHSA-j3m6-gvm8-mhvw
- https://www.silverstripe.org/download/security-releases/CVE-2023-49783
- https://nvd.nist.gov/vuln/detail/CVE-2023-49783
- https://github.com/silverstripe-security/security-issues/issues/177
- https://github.com/silverstripeltd/product-issues/issues/832
- https://github.com/silverstripe/silverstripe-admin/commit/9693130a0a637cdf512277cf5f07e83250b191db
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/admin/CVE-2023-49783.yaml
- https://github.com/advisories/GHSA-j3m6-gvm8-mhvw (Advisory)
Frequently Asked Questions
What is CVE-2023-49783?
CVE-2023-49783 is a vulnerability that allows users without edit or delete permissions to modify records via the CSV import form if they possess create permissions.
What is the severity of CVE-2023-49783?
The severity of CVE-2023-49783 has not been explicitly categorized but presents significant security concerns due to unauthorized editing capabilities.
How do I fix CVE-2023-49783?
To fix CVE-2023-49783, update the SilverStripe Admin package to version 2.1.9 or later for remedial security improvements.
Which versions of SilverStripe Admin are affected by CVE-2023-49783?
CVE-2023-49783 affects SilverStripe Admin versions between 1.0.0 to 1.13.19 and 2.0.0 to 2.1.8.
Who is at risk of CVE-2023-49783?
Users with create permissions but lacking edit or delete permissions for records are at risk due to this vulnerability.
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