TypeError: 'NoneType' object is not subscriptable

[ArpitKubadia]

Traceback (most recent call last): File "C:\Users\hi\Desktop\CVE-2019-18935\CVE-2019-18935.py", line 202, in <module> filename_remote_actual = upload( File "C:\Users\hi\Desktop\CVE-2019-18935\CVE-2019-18935.py", line 121, in upload if filename_remote != result['metaData']['TempFileName']: TypeError: 'NoneType' object is not subscriptable

I have managed to compile the payload, and have shortlisted the version of Telerik to be 2019.1.215 (based on the last modified date on /WebResource). What could be the possible reason for this error?

The command I ran was python .\CVE-2019-18935.py -v 2019.1.215 -u HOSTNAME/Telerik.Web.UI.WebResource.axd?type=rau -p .\payloads\sleep-2020122117174156-amd64.dll -f 'C:\Windows\Temp'

[Phoenix1112]

same problem...please help...

  File "CVE-2019-18935.py", line 207, in <module>
    args.url
  File "CVE-2019-18935.py", line 121, in upload
    if filename_remote != result['metaData']['TempFileName']:
TypeError: 'NoneType' object is not subscriptable```

[ArpitKubadia]

@Phoenix1112 Hey I am not the original author of this repository, but I realised that commenting out the if block that starts at line 121 of CVE-2019-18935.py would solve the issue.

[Phoenix1112]

thanks

[noperator]

Seems like you're running into a situation where result['metaData'] == None, which causes the TypeError: 'NoneType' object is not subscriptable when you try to "subscript" (i.e., access the elements of) metaData when getting its TempFileName field.

I added a check to try to prevent this from happening.