CA-405593: Do not write extraneous data into the host certificate file #6263
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lindig
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lindig
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Vincent-lau
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When installing host certificates, the parser used accepts strings with
extraneous characters surrounding the PEM-encoded data. The ad-hoc parser used
to reject such data because it was stricter.
Because the PEM-encoded objects are copied as-is after validating them, the
ad-hoc parser failed to read the file correctly on xapi restarts.
This change fixes the issue by encoding the key and certificates in PEM format
from parsed datastructures instead of using user-provided inputs directly.
Parse, don't validate
Signed-off-by: Pau Ruiz Safont <pau.ruizsafont@cloud.com>
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When installing host certificates, the parser used accepts string with random characters surrounding the PEM-encoded data. The ad-hoc parser used to read the host certificate file was unable to parse them.
Because the PEM-encoded objects are copied as-is after validating them, the ad-hoc parser fails to read the file correctly when xapi restarts.
This change fixes the issue by making sure that the written file's data has been sanitized, by using parsed datastructures instead of user-provided data.
I've manually tested the fix on a host, before and after to validate that indeed now all the characters in between the PEM-encoded objects are stripped