Tranquil IT Forum

Published: **June 18, 2021 - 5:06 PM**

Good morning,

I am trying to create a package to install certificates across the entire fleet.
In the install section I do this:

Code: Select all

CPath=r'C:\CERTIFMAAF'
ROOTlist=['IGCAACracineEtatfrancais.crt']
CINTList=['ACAGENTSAGRIALIMAUTONOME.crt',
          'ACAGENTSAVANCEE.crt',
          'ACAGENTSDDIAVANCEE.crt',
          'ACAGENTSDDISTANDARD.crt',
          'ACAGENTSSTANDARD.crt',
          'ACDISPOSITIFTECHNIQUE.crt',
          'ACDISPOSITIFTECHNIQUEDDI.crt',
          'ACPARTENAIRESAGRIALIMAUTONOME.crt',
          'ACPARTENAIRESAVANCEE.crt',
          'ACPARTENAIRESSTANDARD.crt',
          'ACRACINEAGRIALIMAUTONOME.crt',
          'ACRACINEMINISTEREENCHARGEDELAGRICULTURE.crt',
          'ACSERVEURSAGRIALIMAUTONOME.crt',
          'ACSERVEURSAVANCEE.crt',
          'ACSERVEURSDDISTANDARD.crt',
          'ACSERVEURSPARTENAIRESAGRIALIMAUTONOME.crt',
          'ACSERVEURSSTANDARD.crt',
          'ACUSAGERS.crt']

def install():
    if isdir(CPath):
        print('-- Déjà en place, on passe...')
    else:
        mkdirs (CPath)
        copytree2(r'.\CERTIFMAAF',CPath ,onreplace=default_overwrite)
        for cert in (ROOTlist):
            print (" Installing " + cert + " in Trusted Root CA Store.")
            cmd=r'certutil.exe -silent -addstore root {}\{}.crt'.format(CPath,cert)
            run_notfatal(cmd)
        for cert in (CINTList):
            print (" Installing " + cert + " in Trusted Intermediaries CA.")
            cmd=r'certutil.exe -silent -addstore ca {}\{}.crt'.format(CPath,cert)
            run_notfatal(cmd)

I have no errors (normal, it's in silent mode), except that the certificates are not installing.
Is this a rights issue? Can't the computer/system account integrate certificates?
How can I make it work?

Published: **June 21, 2021 - 3:45 PM**

Hello Megs,

In the code, the substitution seems to add a .crt file to the filename of the file that already contains a .crt file:

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{}\{}.crt

The WAPT agent executes the contents of the `def install()` function as a Local System account, so it has the rights to add certificates to the local store. However, care must be taken when creating directories at the root (C:\CERTIFMAAF) with inherited permissions to prevent anything other than the Local System account from writing to them. In fact, it's not necessary to make an intermediate copy in C:\CERTIFMAAF (if there are no other applications that need access to the .crt files themselves), and you can use `certutil` directly from the WAPT package installation directory.

Sincerely,

Denis

Published: **June 21, 2021 - 4:21 PM**

Yes indeed, it was Friday night so...

.
Also, the paths are unclear to me, so there's no way to retrieve the correct certificate path unless I copy it to a place where I know for sure where it is. I tried the path .\CERTIFMAAF but poof... not found.

But it doesn't change anything anyway. Certutils doesn't work via command prompt. It works with PowerShell, however, since it doesn't call an external executable.

I've compiled a simpler, more user-friendly version for everyone (Win 7 not tested). Feel free to use it as a guide if you wish. Tested and working on Win10. WAPT 1.8.2. Linux core version.

Code: Select all

from setuphelpers import *
import os

uninstallkey = []
CRootPath=r'C:\CERTIFMAAF\ROOT'
CCaPath=r'C:\CERTIFMAAF\CA'
Certlist=[]

def install():
    global CRootPath
    global CCaPath
    global Certlist

    if isdir(CRootPath):
        print("-- Déjà en place, on passe...")
    else:
        copytree2(r'.\CERTIFMAAF',r'C:\CERTIFMAAF' ,onreplace=default_overwrite)

        for cert in os.listdir(CRootPath):
            cmd=r'import-certificate {}\{} -CertStoreLocation "Cert:\LocalMachine\Root"'.format(CRootPath,cert)
            print (cmd)
            run_powershell(cmd)
        for cert in os.listdir(CCaPath):
            cmd=r'import-certificate {}\{} -CertStoreLocation "Cert:\LocalMachine\CA"'.format(CCaPath,cert)
            print (cmd)
            run_powershell(cmd)

def uninstall():
    if isdir(CRootPath):
        print ("Removing... ")
        remove_tree (CPath)
        for cert in (RemoveList):
            print (" Removing ALL IGC and AC in Trusted Root & CA Store.")
            cmd=r'get-childitem cert:"LocalMachine\Root" | Where-object {$_.subject -like "CN=IGC/A AC*"} | ForEach-Object {Remove-Item -Path "Cert:\LocalMachine\CA\$($_.Thumbprint)"}'
            run_powershell(cmd)
            cmd=r'get-childitem cert:"LocalMachine\CA" | Where-object {$_.subject -like "CN=AC *"} | ForEach-Object {Remove-Item -Path "Cert:\LocalMachine\CA\$($_.Thumbprint)"}'
            run_powershell(cmd)

Finally, all that remains is to figure out how to find the identifier of each certificate from the folder and its stored contents, and then delete them in a targeted manner to create a generalized package. But I don't have the time.

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