PT-2019-15569 · Nvidia+2 · Nvapi.Dll+2
Published
2019-12-17
·
Updated
2021-07-21
·
CVE-2019-18670
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Acer Quick Access versions 2.01.3000 through 2.01.3027
Acer Quick Access versions 3.00.3000 through 3.00.3008
Description
The issue allows a regular user to load an arbitrary unsigned DLL into the signed service's process, which runs as NT AUTHORITYSYSTEM. This is caused by an uncontrolled search path element for
nvapi.dll, atiadlxx.dll, or atiadlxy.dll, leading to a DLL hijacking vulnerability, including search order hijacking. The vulnerability exploits the search for missing DLLs in the PATH environment variable.Recommendations
For Acer Quick Access versions 2.01.3000 through 2.01.3027, consider disabling the service until a patch is available to prevent exploitation.
For Acer Quick Access versions 3.00.3000 through 3.00.3008, restrict access to the vulnerable service to minimize the risk of privilege escalation.
As a temporary workaround, avoid using the vulnerable DLLs
nvapi.dll, atiadlxx.dll, or atiadlxy.dll in the affected service until the issue is resolved.Exploit
Fix
Uncontrolled Search Path Element
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Weakness Enumeration
Related Identifiers
Affected Products
Acer Quickaccess
Atiadlxx.Dll
Nvapi.Dll