Szczegóły CWE-618

An ActiveX control is intended for use in a web browser, but it exposes dangerous methods that perform actions that are outside of the browser's security model (e.g. the zone or domain).

ActiveX controls can exercise far greater control over the operating system than typical Java or javascript. Exposed methods can be subject to various vulnerabilities, depending on the implemented behaviors of those methods, and whether input validation is performed on the provided arguments. If there is no integrity checking or origin validation, this method could be invoked by attackers.

Sposoby wprowadzenia

Architecture and Design
Implementation

Odpowiednie platformy

Język

Class: Not Language-Specific (Undetermined)

Technologie

Class: Web Based (Undetermined)

Typowe konsekwencje

Zaobserwowane przykłady

Potencjalne środki zaradcze

Phases : Implementation
If you must expose a method, make sure to perform input validation on all arguments, and protect against all possible vulnerabilities.
Phases : Architecture and Design
Use code signing, although this does not protect against any weaknesses that are already in the control.
Phases : Architecture and Design // System Configuration
Where possible, avoid marking the control as safe for scripting.

Metody wykrywania

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)
Skuteczność : High

Uwagi dotyczące mapowania podatności

Uzasadnienie : This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Komentarz : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Odniesienia

REF-503

Developing Secure ActiveX Controls
Microsoft.
https://learn.microsoft.com/en-us/previous-versions//ms533046(v=vs.85)?redirectedfrom=MSDN

REF-62

The Art of Software Security Assessment
Mark Dowd, John McDonald, Justin Schuh.

Zgłoszenie

Modyfikacje