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Insertion of Sensitive Information into Log File


Severity Medium
Score 4.9/10


Nextcloud Mail is an email application for the nextcloud personal cloud product. Affected versions of Nextcloud mail would log user passwords to disk in the event of a misconfiguration. Should an attacker gain access to the logs complete access to affected accounts would be obtainable. It is recommended that the Nextcloud Mail is upgraded to 1.12.1. Operators should inspect their logs and remove passwords which have been logged. There are no workarounds to prevent logging in the event of a misconfiguration.

  • LOW
  • NONE
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  • HIGH
  • HIGH
  • NONE

CWE-532 - Insertion of Sensitive Information into Log File

It's quite common for applications to save logs. For example, whenever a user requests a resource from a particular website, the web server writes information about the request to a log file. These files are helpful for identifying abnormal system activity, bugs, and evaluating the security controls of the application. Security of log files is critical for the overall security of the application and its confidential resources. An application that lacks appropriate logging levels can expose sensitive user data and system information stored on the log files to malicious users. This info can be exploited to compromise your system.


Advisory Timeline

  • Published