CWE-784 - Reliance on Cookies without Validation and Integrity Checking in a Security Decision
CWE-784 High
- Abstraction:
- Variant
- Structure:
- Simple
- Status:
- Draft
- Weakness Name
Reliance on Cookies without Validation and Integrity Checking in a Security Decision
- Description
The product uses a protection mechanism that relies on the existence or values of a cookie, but it does not properly ensure that the cookie is valid for the associated user.
Attackers can easily modify cookies, within the browser or by implementing the client-side code outside of the browser. Attackers can bypass protection mechanisms such as authorization and authentication by modifying the cookie to contain an expected value.
- Common Consequences
Scope: Access Control
Impact: Bypass Protection Mechanism, Gain Privileges or Assume Identity
Notes: It is dangerous to use cookies to set a user's privileges. The cookie can be manipulated to claim a high level of authorization, or to claim that successful authentication has occurred.
- Related Weaknesses
- Release Date:
- 2009-07-27
- Latest Modification Date:
- 2023-06-29
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