API Key Leakage via Insecure E-mail Communication in Pagure 5.2

CVE-2019-7628 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:N/A:N

Pagure 5.2 leaks API keys by e-mailing them to users. Few e-mail servers validate TLS certificates, so it is easy for man-in-the-middle attackers to read these e-mails and gain access to Pagure on behalf of other users. This issue is found in the API token expiration reminder cron job in files/api_key_expire_mail.py; disabling that job is also a viable solution. (E-mailing a substring of the API key was an attempted, but rejected, solution.)

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