Weakness (CWE)
CWE-784: Reliance on Cookies without Validation and Integrity Checking in a Security Decision
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.
How to prevent it (4 mitigations)
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Architecture and Design
Avoid using cookie data for a security-related decision.
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Implementation
Perform thorough input validation (i.e.: server side validation) on the cookie data if you're going to use it for a security related decision.
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Architecture and Design
Add integrity checks to detect tampering.
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Architecture and Design
Protect critical cookies from replay attacks, since cross-site scripting or other attacks may allow attackers to steal a strongly-encrypted cookie that also passes integrity checks. This mitigation applies to cookies that should only be valid during a single transaction or session. By enforcing timeouts, you may limit the scope of an attack. As part of your integrity check, use an unpredictable, server-side value that is not exposed to the client.
Source: MITRE CWE-784
6 results · Feed
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High 8.8
Weintek cMT3092X Reliance on Cookies without Validation and Integrity Checking in a Security Decision
Weintek cMT3092X HMI allows a non-privileged user to modify cookies to gain elevated privileges.
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High 8.1
CubeCart: Pre-Authenticated Password Reset Link Poisoning via HTTP Host Header
CubeCart is an ecommerce software solution. Prior to 6.7.2, CubeCart 6.6.x – 6.7.1 builds CC_STORE_URL directly from the Host request header at bootstrap, with no allowlist. The constant is embedded verbatim into transactional email links, most critically the…
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Medium 6.5
WP 2FA with Telegram <= 3.0 - Two-Factor Authentication Bypass
The WP 2FA with Telegram plugin for WordPress is vulnerable to Two-Factor Authentication Bypass in versions up to, and including, 3.0. This is due to the two-factor code being stored in a cookie, which makes it possible to bypass two-factor authentication.
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Critical 9.8
Authentication Bypass in TMT's Lockcell
Reliance on Cookies without Validation and Integrity Checking in a Security Decision vulnerability in TMT Lockcell allows Privilege Abuse, Authentication Bypass. This issue affects Lockcell: before 15.
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Low 3.9
All versions of Landis+Gyr E850 (ZMQ200) are vulnerable to CWE-784: Reliance on Cookies Without Validation and Integrit…
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High 7.5
Rack allows Percent-encoded cookies to overwrite existing prefixed cookie names
A reliance on cookies without validation/integrity check security vulnerability exists in rack < 2.2.3, rack < 2.1.4 that makes it is possible for an attacker to forge a secure or host-only cookie prefix.