Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU18571
Risk: Low
CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: N/A
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the "_SchRpcRegisterTask" RPC endpoint within the Windows Task Scheduler that does not check for permissions when registering new tasks. A local unprivileged user can execute arbitrary code on the target system with elevated privileges.
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsWindows: 10 - 10 1903 10.0.18362.116
CPE2.3https://github.com/SandboxEscaper/polarbearrepo/tree/master/bearlpe
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.