10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
9.2 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.975 High
EPSS
Percentile
100.0%
Β© 2020 ZecOps, Inc. - <https://www.zecops.com> - Find Attackersβ Mistakes
POC to check for CVE-2020-0796 / βSMBGhostβ
Expected outcome: Blue Screen
Intended only for educational and testing in corporate environments.
ZecOps takes no responsibility for the code, use at your own risk.
Please contact [email protected] if you are interested in agent-less DFIR tools for Servers, Endpoints, and Mobile Devices to detect SMBGhost and other types of attacks automatically.
Usage
CVE-2020-0796-POC.exe [<TargetServer>]
If <TargetServer>
is omitted, the POC is executed on localhost (127.0.0.1
).
Compiled POC
You can get the compiled POC here.
Compiling
Use Visual Studio to compile the following projects:
ProtoSDK\Asn1Base\Asn1Base.csproj
ProtoSDK\MS-XCA\Xca.csproj
ProtoSDK\MS-SMB2\Smb2.sln
Use the resulting exe file to run the POC.
References
10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
9.2 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.975 High
EPSS
Percentile
100.0%