IndexError: list index out of range

Describe the bug With the recent version of the Checkov container I’ve been seeing an IndexError: list index out of range error popping up for a bunch of our environments.

$ checkov -d . -o junitxml | tee checkov-report.xml
Traceback (most recent call last):
  File "/usr/local/bin/checkov", line 5, in <module>
    run()
  File "/usr/local/lib/python3.8/site-packages/checkov/main.py", line 86, in run
    scan_reports = runner_registry.run(root_folder=root_folder, external_checks_dir=external_checks_dir,
  File "/usr/local/lib/python3.8/site-packages/checkov/common/runners/runner_registry.py", line 34, in run
    scan_report = runner.run(root_folder, external_checks_dir=external_checks_dir, files=files,
  File "/usr/local/lib/python3.8/site-packages/checkov/terraform/runner.py", line 59, in run
    self.parser.parse_directory(directory=root_folder,
  File "/usr/local/lib/python3.8/site-packages/checkov/terraform/parser.py", line 76, in parse_directory
    self._parse_directory(dir_filter=lambda d: self._check_process_dir(d))
  File "/usr/local/lib/python3.8/site-packages/checkov/terraform/parser.py", line 116, in _parse_directory
    self._internal_dir_load(sub_dir, module_loader_registry, dir_filter)
  File "/usr/local/lib/python3.8/site-packages/checkov/terraform/parser.py", line 214, in _internal_dir_load
    var_value_and_file_map.update({k: (v[0], hcl_tfvars.path) for k, v in data.items()})
  File "/usr/local/lib/python3.8/site-packages/checkov/terraform/parser.py", line 214, in <dictcomp>
    var_value_and_file_map.update({k: (v[0], hcl_tfvars.path) for k, v in data.items()})
IndexError: list index out of range

Details:

Using docker image sha256:0baa68af8354cdb0bf84f81c2217e450c771c47f2310d1b5dccf4406a16a9aef for bridgecrew/checkov:latest with digest bridgecrew/checkov@sha256:c899c4b104a529825bd3dff9f2057501870700d90ec35231864967fecd030e7f ...

It worked fine yesterday with this container:

Using docker image sha256:8e019fbd936fee00ec424f67d976a0b6b982563fc46fb528472b84f3c71fd748 for bridgecrew/checkov:latest with digest bridgecrew/checkov@sha256:9c63f061c767048feea77b0e693d7597bd6ae377b28dc9da157cef7e9395fbf9 ...

To Reproduce Steps to reproduce the behavior:

1. Run checkov -d . -o junitxml | tee checkov-report.xml in the Terraform folder

Expected behavior No errors, XML output of the report.

Screenshots N/a

Desktop (please complete the following information):

• OS: Docker container bridgecrew/checkov:latest
• Checkov Version [e.g. 22] 1.0.779

Additional context Seems to be happening since the changes of https://github.com/bridgecrewio/checkov/pull/867

[robeden]

@syphernl / @nimrodkor - Thanks, I’m able to replicate this issue and should have a fix shortly.

[syphernl]

@robeden @nimrodkor Thanks for the quick follow-up and fix!