CWE-184
Incomplete List of Disallowed Inputs
Description
The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.
Parent Weaknesses (ChildOf)
Common Consequences
Scope
Impact
Bypass Protection Mechanism
Potential Mitigations
Do not rely exclusively on detecting disallowed inputs. There are too many variants to encode a character, especially when different environments are used, so there is a high likelihood of missing some variants. Only use detection of disallowed inputs as a mechanism for detecting suspicious activity. Ensure that you are using other protection mechanisms that only identify "good" input - such as lists of allowed inputs - and ensure that you are properly encoding your outputs.
CVE-2024-6091Chain: AI agent platform does not restrict pathnames containing internal "/./" sequences (CWE-55), leading to an incomplete denylist (CWE-184) that does not prevent OS command injection (CWE-78)
CVE-2024-4315Chain: API for text generation using Large Language Models (LLMs) does not include the "\" Windows folder separator in its denylist (CWE-184) when attempting to prevent Local File Inclusion via path traversal (CWE-22), allowing deletion of arbitrary files on Windows systems.
CVE-2024-44335Chain: filter only checks for some shell-injection characters (CWE-184), enabling OS command injection (CWE-78)
CVE-2008-2309product uses a denylist to identify potentially dangerous content, allowing attacker to bypass a warning
CVE-2005-2782PHP remote file inclusion in web application that filters "http" and "https" URLs, but not "ftp".
CVE-2004-0542Programming language does not filter certain shell metacharacters in Windows environment.
CVE-2004-0595XSS filter doesn't filter null characters before looking for dangerous tags, which are ignored by web browsers. MIE and validate-before-cleanse.
CVE-2005-3287Web-based mail product doesn't restrict dangerous extensions such as ASPX on a web server, even though others are prohibited.
CVE-2004-2351Resultant XSS when only <script> and <style> are checked.
CVE-2005-2959Privileged program does not clear sensitive environment variables that are used by bash. Overlaps multiple interpretation error.
+7 more examples
Applicable Platforms
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