cbcvebase.
CVE-2018-5713
published 2018-01-16

CVE-2018-5713: In Malwarefox Anti-Malware 2.72.169, the driver file (zam64.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other…

PriorityP271high7.8CVSS 3.0
AVLACLPRLUINSUCHIHAH
ITWVulnCheck KEV
Exploited in the wild
EPSS
1.06%
60.2th percentile
In Malwarefox Anti-Malware 2.72.169, the driver file (zam64.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x80002010.

Affected

1 ranges
VendorProductVersion rangeFixed in
malwarefoxanti-malware

Detection & IOCsextracted from sources · hover to see the quote

filenamezamguard64.sys
filenamemmmm.sys
filenamezam64.sys
commandIOCTL 0x80002010
commandIOCTL 0x80002048
path\\.\ZemanaAntiMalware
registryHKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\{target process name}
otherMinimumStackCommitInBytes = 0x88888888
filenameMpClient.bin
processMpDlpCmd.exe
processMpCmdRun.exe
  • Detect BYOVD abuse of zamguard64.sys / zam64.sys: monitor for the driver being loaded as a kernel service outside of Zemana Anti-Malware installation context, especially when dropped as an alternate filename such as mmmm.sys.
  • Detect 'stack rumbling' DoS: monitor creation of MinimumStackCommitInBytes registry value under HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\* with large data values (e.g. 0x88888888).
  • Monitor for process termination of security product processes (e.g., MsMpEng.exe, NisSrv.exe, 360tray.exe, AliYunDun.exe) initiated by a kernel driver handle rather than a user-mode process.

CVSS provenance

nvdv3.07.8HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.1MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:C
vulncheck7.8HIGH
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