SYSTEM code execution via modifiable firmware-update RPC
Published Dec 16, 2024 · Updated Dec 16, 2024
Improper validation in the firmware updater of Lenovo Accessories and Display Manager before 1.0.5.0.5 allows local users to gain SYSTEM privileges. The medium-integrity LenovoDisplayControlCenterService.exe trusts modifiable RPC parameters, allowing FWInstaller.exe to launch an attacker-chosen executable as SYSTEM. A low-privileged Windows session and a firmware-update trigger are required; successful exploitation grants full control of the host.
Summary
What happened
Improper validation in the firmware updater of Lenovo Accessories and Display Manager before 1.0.5.0.5 allows local users to gain SYSTEM privileges. The medium-integrity LenovoDisplayControlCenterService.exe trusts modifiable RPC parameters, allowing FWInstaller.exe to launch an attacker-chosen executable as SYSTEM. A low-privileged Windows session and a firmware-update trigger are required; successful exploitation grants full control of the host.
The record
- CVE
- CVE-2024-4762
- Published
- Dec 16, 2024
- Updated
- Dec 16, 2024
- Vendor
- Lenovo
- Product
- Lenovo Accessories and Display Manager
- Classifications
- CWE-295, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 16, 2024CVE publishedPublication date reported by the CVE source.
- Dec 16, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.0.5.0.5
- Affected versionversion=0 <3.0.32161.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Lenovo DCC malicious firmware-update exploitation procedurefunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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