Local Privilege Escalation via Insecure DLL Permissions in Remote Utilities Host <=7.7.3.0
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Remote Utilities Pte. Ltd. | Remote Utilities Host | unaffected |
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No data.
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| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Remote Utilities | Remote Utilities Host |
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Vendor Solution
* Remove Everyone:(F) ACL from all DLL files under the installation directory. Restrict to: SYSTEM (Full Control), Administrators (Full Control), Users/Authenticated Users (Read & Execute). Enforce recursively in installer, update routine, and repair mechanism. * Implement cryptographic signature verification of all loaded DLLs at service startup. * Use atomic DLL replacement during updates (write to temp path, verify signature, rename).
Vendor Workaround
Manually correct DLL ACLs using icacls: icacls "C:\Program Files (x86)\Remote Utilities - Host\*.dll" /remove "Everyone" /grant "BUILTIN\Users:(RX)" /grant "NT AUTHORITY\SYSTEM:(F)" /grant "BUILTIN\Administrators:(F)"
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.120% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Remote Utilities
Remote Utilities remote Utilities Host |
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| Vendors & Products |
Remote Utilities
Remote Utilities remote Utilities Host |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | Remote Utilities Host <=7.7.3.0 sets insecure ACLs on all DLL files in the installation directory (C:\Program Files (x86)\Remote Utilities - Host\), granting FULL CONTROL (F) to the built-in Everyone group (BUILTIN\Everyone, S-1-1-0). A Windows service running as NT AUTHORITY\SYSTEM loads DLLs from this directory. The DLLs are file-locked at runtime, but a race window exists when the service is stopped (e.g. during a software update or following a crash), during which a local unprivileged attacker can replace a DLL with a malicious payload. Upon service restart, the payload executes as NT AUTHORITY\SYSTEM. The DLL confirmed as actively loaded during testing is libasset32.dll. Additional DLLs in the same directory (eventmsg.dll, libcodec32.dll, vp8encoder.dll, vp8decoder.dll, webmvorbisdecoder.dll, webmvorbisencoder.dll, webmmux.dll) share identical insecure permissions. | |
| Title | Local Privilege Escalation via Insecure DLL Permissions in Remote Utilities Host <=7.7.3.0 | |
| Weaknesses | CWE-732 | |
| References |
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| Metrics |
cvssV4_0
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