CWE-525

Use of Web Browser Cache Containing Sensitive Information

The web application does not use an appropriate caching policy that specifies the extent to which each web page and associated form fields should be cached.

Mitigation

Phase: Architecture and Design

Description:

  • Protect information stored in cache.
Mitigation

Phase: Implementation

Description:

  • Use a restrictive caching policy for forms and web pages that potentially contain sensitive information, such as "no-cache" in the Cache-Control header.
Mitigation

Phase: Architecture and Design

Description:

  • Do not store unnecessarily sensitive information in the cache.
Mitigation

Phase: Architecture and Design

Description:

  • Consider using encryption in the cache.
CAPEC-37: Retrieve Embedded Sensitive Data

An attacker examines a target system to find sensitive data that has been embedded within it. This information can reveal confidential contents, such as account numbers or individual keys/credentials that can be used as an intermediate step in a larger attack.

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