Advisory Details

June 1st, 2022

Microsoft Visual Studio VSIX Auto Update Deserialization of Untrusted Data Privilege Escalation Vulnerability

ZDI-22-807
ZDI-CAN-15294

CVE ID CVE-2022-24513
CVSS SCORE 8.4, (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Visual Studio
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Visual Studio. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the VSIX Auto Update task. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24513
DISCLOSURE TIMELINE
  • 2021-12-15 - Vulnerability reported to vendor
  • 2022-06-01 - Coordinated public release of advisory
CREDIT Nils Ole Timm (@firzen14)
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