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Polish SSLError #11093

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Merged
jiasli merged 7 commits into from
Nov 5, 2019
Merged

Polish SSLError #11093

jiasli merged 7 commits into from
Nov 5, 2019

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@jiasli jiasli commented Nov 4, 2019 •
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Polish SSLError reported in issues #11069, #11068, #10921, #10860, #10272 ...

Changed 3 places:

  • src/azure-cli/azure/cli/command_modules/profile/custom.py when logging in
  • src/azure-cli-core/azure/cli/core/adal_authentication.py when retrieving tokens
  • src/azure-cli-core/azure/cli/core/util.py when making REST requests

To test, replace <virtual env>\Lib\site-packages\certifi\cacert.pem with some self-signed certificate like Fiddler's:

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

az login now fails with

Certificate verification failed. This typically happens when using Azure CLI behind a proxy that intercepts traffic with a self-signed certificate. Please add this certificate to the trusted CA bundle: https://github.com/Azure/azure-cli/blob/dev/doc/use_cli_effectively.md#working-behind-a-proxy. Error detail: HTTPSConnectionPool(host='login.microsoftonline.com', port=443): Max retries exceeded with url: /common/oauth2/token (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])")))

If logged in, az vm list fails with similar message.

This checklist is used to make sure that common guidelines for a pull request are followed.

  • The PR has modified HISTORY.rst describing any customer-facing, functional changes. Note that this does not include changes only to help content. (see Modifying change log).

  • I adhere to the Command Guidelines.

@jiasli jiasli self-assigned this Nov 4, 2019
fengzhou-msft
fengzhou-msft reviewed Nov 4, 2019
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src/azure-cli/azure/cli/command_modules/profile/custom.py Outdated
"More details are available at https://github.com/AzureAD/microsoft-authentication-library-for-python/wiki/Username-Password-Authentication")
raise CLIError(err)
except requests.exceptions.SSLError as err:
raise CLIError('Certificate verification failed. Please typically happens when using Azure CLI behind a proxy '
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@fengzhou-msft fengzhou-msft Nov 4, 2019

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typo Please typically happens

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@jiasli jiasli Nov 5, 2019

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Nice catch. Fixed in new commit.

qwordy
qwordy reviewed Nov 5, 2019
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@jiasli jiasli merged commit 6494316 into Azure:dev Nov 5, 2019
@jiasli jiasli added this to the S161 milestone Nov 19, 2019
@jiasli jiasli mentioned this pull request Nov 25, 2019
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@jiasli jiasli mentioned this pull request Feb 11, 2020
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@jiasli jiasli deleted the sslerror branch February 11, 2020 12:07
@jiasli jiasli mentioned this pull request Nov 16, 2023
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@jiasli jiasli mentioned this pull request Feb 12, 2025
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jiasli commented Feb 12, 2025

@jiasli, Why is SSLError handled in 3 places, instead of the centralized azure.cli.core.util.handle_exception?

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