Vulnerability Details

Nmap NSE net: smb-enum-processes

Published: 2011-06-01 14:32:46

CVSS Base Vector:
AV:N/AC:L/Au:S/C:P/I:N/A:N

Detection Type:
remote_analysis

Summary:
Pulls a list of processes from the remote server over SMB. This will determine all running processes, their process IDs, and their parent processes. It is done by querying the remote Windows Registry service, which is disabled by default on Vista. On all other Windows versions, it requires Administrator privileges. Since this requires administrator privileges, it isn't especially useful for a penetration tester, since they can effectively do the same thing with metasploit or other tools. It does, however, provide for a quick way to get process lists for a bunch of systems at the same time. WARNING: I have experienced crashes in 'regsvc.exe' while making Windows Registry calls against a fully patched Windows 2000 system. I've fixed the issue that caused it, but there's no guarantee that it (or a similar vulnerability in the same code) won't show up again. Since the process automatically restarts, it doesn't negatively impact the system, besides showing a message box to the user. SYNTAX: smbbasic: Forces the authentication to use basic security, as opposed to 'extended security'. Against most modern systems, extended security should work, but there may be cases where you want to force basic. There's a chance that you'll get better results for enumerating users if you turn on basic authentication. smbport: Override the default port choice. If 'smbport' is open, it's used. It's assumed to be the same protocol as port 445, not port 139. Since it probably isn't possible to change Windows' ports normally, this is mostly useful if you're bouncing through a relay or something. smbsign: Controls whether or not server signatures are checked in SMB packets. By default, on Windows, server signatures aren't enabled or required. By default, this library will always sign packets if it knows how, and will check signatures if the server says to. Possible values are: - 'force': Always check server signatures, even if server says it doesn't support them (will probably fail, but is technically more secure). - 'negotiate': [default] Use signatures if server supports them. - 'ignore': Never check server signatures. Not recommended. - 'disable': Don't send signatures, at all, and don't check the server's. not recommended. More information on signatures can be found in 'smbauth.lua'. randomseed: Set to a value to change the filenames/service names that are randomly generated.

Solution Type:
Mitigation

Severity
Medium
CVSS Score
4.0
Published
2011-06-01
Modified
2018-10-26
Category
Nmap NSE net

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