Microsoft Office Performance Monitor Link Following Local Privilege Escalation Vulnerability
Vulnerability Details
This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Office. 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 Office Performance Monitor executable. By creating a symbolic link, an attacker can abuse the process to delete arbitrary files. 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-2024-26199
Disclosure Timeline
- 2024-02-06 - Vulnerability reported to vendor
- 2024-03-13 - Coordinated public release of advisory
- 2024-07-01 - Advisory Updated
Credit
Iván Almuiña from Hacking Corporation Sàrl
