ID CVE-2021-31727
Summary Incorrect access control in zam64.sys, zam32.sys in MalwareFox AntiMalware 2.74.0.150 where IOCTL's 0x80002014, 0x80002018 expose unrestricted disk read/write capabilities respectively. A non-privileged process can open a handle to \.\ZemanaAntiMalware, register with the driver using IOCTL 0x80002010 and send these IOCTL's to escalate privileges by overwriting the boot sector or overwriting critical code in the pagefile.
References
Vulnerable Configurations
  • cpe:2.3:a:malwarefox:antimalware:2.74.0.150:*:*:*:*:*:*:*
    cpe:2.3:a:malwarefox:antimalware:2.74.0.150:*:*:*:*:*:*:*
CVSS
Base: 7.2 (as of 12-07-2022 - 17:42)
Impact:
Exploitability:
CWE NVD-CWE-Other
CAPEC
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
cvss-vector via4 AV:L/AC:L/Au:N/C:C/I:C/A:C
Last major update 12-07-2022 - 17:42
Published 17-05-2021 - 13:15
Last modified 12-07-2022 - 17:42
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