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Miggo AIRoot Cause AnalysisThe vulnerability is a remote code execution flaw in Sentry, identified as CVE-2021-47935. It allows a superuser to execute arbitrary code by injecting a malicious pickle-serialized object into the data field of an AuditLogEntry through the admin interface. The analysis of the provided patches shows that the vulnerability was fixed by making the data field read-only in the AuditLogEntryAdmin class. The vulnerable function is identified as sentry.admin.AuditLogEntryAdmin.change_view, which is the Django admin view responsible for handling the modification of AuditLogEntry objects. During an exploit, this function would process the POST request containing the malicious pickle payload, leading to its deserialization and code execution. The patch prevents this by removing the ability to edit the data field from the admin UI.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| sentry | pip | < 8.1.4 | 8.1.4 |
| sentry | pip | >= 8.2.0, < 8.2.2 | 8.2.2 |
