SSLv3 handshake failure

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
20/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
aws, python
Domain
backend, cloud

Research direction

Start with consumer.py, especially the submission-to-grader connection path and the logged SSLV3_ALERT_HANDSHAKE_FAILURE from the AWS Lambda grader URL. Reproduce a submission against the external grader and inspect the connection and TLS configuration. Done means submissions connect successfully and receive a grading response without the handshake failure.

Written by the indexing model from the issue text.

Description

I have an activated ami in AWS (one of Bitnami's ficus 3.1) and also created an external grader using AWS Lambda function. The problem comes when I try to submit a file for grading. This error shows up:
Could not connect to server at _Lambda-URL_ in timeout=30.000000 ERROR 21427 [queue.consumer] consumer.py:440 - Submission 528 to grader _Lambda-URL_ failure: Reply: cannot connect to server
Now I changed the consumer.py file a bit to log the actual error and this is what i got:
ERROR 21427 [queue.consumer] consumer.py:196 - [SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:661)

Dominant language
Python
Stars
39
Forks
102
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