(0Day) Microsoft Azure Machine Learning Compute Instance certificate Exposure of Resource to Wrong Sphere Information Disclosure Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to disclose sensitive information on Microsoft Azure. An attacker must first obtain the ability to execute high-privileged code on the target environment in order to exploit this vulnerability.
The specific flaw exists within the handling of certificates. The issue results from the exposure of a resource to the wrong control sphere. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise.
Additional Details
04/07/23 – ZDI reported the vulnerability to the vendor.
04/11/23 – The vendor acknowledged the report.
07/13/23 – ZDI asked for an update.
07/19/23 – The vendor asked us to join a call to discuss the report.
07/19/23 – ZDI joined the call and provided the vendor with additional details.
07/20/23 – The vendor states that they are considering this bug low severity and that they would release a fix in 30-45 days.
07/20/23 – The ZDI informed the vendor that the case is due on 08/05/23 and that we are publishing this case as a zero-day advisory on 08/09/23.
-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the application.
Disclosure Timeline
- 2023-04-07 - Vulnerability reported to vendor
- 2023-08-09 - Coordinated public release of advisory
- 2023-08-09 - Advisory Updated
Credit
Nitesh Surana (@_niteshsurana) & David Fiser (@anu4is) of Project Nebula, Trend Micro Research
