CyberSecBulletin

Exposure of Sensitive System Information to an Unauthorized Control Sphere

CWE-497

The product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does.

We track 80 vulnerabilities of this type. 99% are rated high or critical, and the average CVSS score is 8.1. 1 has been exploited in real attacks.

How this weakness is prevented

  • Architecture and Design Implementation: Production applications should never use methods that generate internal details such as stack traces and error messages unless that information is directly committed to a log that is not viewable by the end user. All error message text should be HTML entity encoded before being written to the log file to protect against potential cross-site scripting attacks against the viewer of the logs

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