Description
MyReport Updater through 2.1.1 contains a local privilege escalation vulnerability that allows low-privileged users to make the SYSTEM updater service install attacker-supplied archives into arbitrary directories. Attackers can use UpdaterManager.exe over gRPC to set a malicious reference server and installLocation, planting a DLL like HID.dll loaded by osk.exe to gain SYSTEM privileges.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Report One | MyReport Updater | ≤ 2.1.1 | — |
References
- https://blog.quarkslab.com/myreport-updater-from-grpc-to-system.html third-party-advisory technical-description exploit
- https://www.myreport.fr/myreport/ product
- VulnCheck Advisory: MyReport Updater through 2.1.1 Local Privilege Escalation via Updater Service third-party-advisory