CWE-184 Detail

CWE-184

Incomplete List of Disallowed Inputs
Draft
2006-07-19
00h00 +00:00
2025-12-11
00h00 +00:00
Notifiche per un CWE specifico
Rimani informato su qualsiasi modifica relativa a un CWE specifico.
Gestione notifiche

Nome: Incomplete List of Disallowed Inputs

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.

General Informations

Modes Of Introduction

Implementation : Developers often try to protect their products against malicious input by checking against lists of known bad inputs, such as special characters that can invoke new commands. However, such lists often only address the most well-known bad inputs. As a quick fix, developers might rely on these lists instead of addressing the root cause of the issue. See [REF-141].
Architecture and Design : The design might rely solely on detection of malicious inputs as a protection mechanism.

Piattaforme applicabili

Linguaggio

Class: Not Language-Specific (Undetermined)

Tecnologie

Class: Not Technology-Specific (Undetermined)

Conseguenze comuni

Ambito Impatto Probabilità
Access ControlBypass Protection Mechanism

Note: Attackers may be able to find other malicious inputs that were not expected by the developer, allowing them to bypass the intended protection mechanism.

Esempi osservati

Riferimenti Descrizione

CVE-2024-6091

Chain: 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-2024-4315

Chain: 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-2024-44335

Chain: filter only checks for some shell-injection characters (CWE-184), enabling OS command injection (CWE-78)

CVE-2008-2309

product uses a denylist to identify potentially dangerous content, allowing attacker to bypass a warning

CVE-2005-2782

PHP remote file inclusion in web application that filters "http" and "https" URLs, but not "ftp".

CVE-2004-0542

Programming language does not filter certain shell metacharacters in Windows environment.

CVE-2004-0595

XSS filter doesn't filter null characters before looking for dangerous tags, which are ignored by web browsers. MIE and validate-before-cleanse.

CVE-2005-3287

Web-based mail product doesn't restrict dangerous extensions such as ASPX on a web server, even though others are prohibited.

CVE-2004-2351

Resultant XSS when only