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Werk #5514: cmk-update-agent: Use POST-requests for server communications

Component Agent bakery
Title cmk-update-agent: Use POST-requests for server communications
Date Oct 11, 2018
Level Trivial Change
Class Security Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
1.4.0p37 Checkmk Pro, Checkmk Ultimate MT

The agent updater now uses POST requests for all communications to the Check_MK Server.

This improves security because all data, including sensitive data like login-credentials, are now sent within the HTTP-Body instead of within the URL. Notably, no sensitive data will ne exposed to the apache logfiles on the Check_MK server.

This Change is relevant for Check_MK 1.4 only, whereas the agent updater shiped with Check_MK 1.5 or newer has another code base that employs POST requests since its first release.

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