MASTG-TEST-0276 Use of the iOS General Pasteboard (iOS)

Platform: iOS
Weakness: MASWE-0036
Weakness in the numbering of the MASWE beta: MASWE-0053
Profiles: L2 (advanced security)
Type: static, code, manual
Prerequisites: identify-sensitive-data
Knowledge: MASTG-KNOW-0083

Overview

This test checks whether the app uses the systemwide general MASTG-KNOW-0083, which is persistent across device restarts and app uninstalls and is accessible by all foreground apps and, in some cases, other devices. Placing sensitive data here may pose a privacy risk.

The test statically analyzes the code for use of the general pasteboard (UIPasteboard.general) and checks whether sensitive data is written using any of the following methods:

Steps

Use MASTG-TECH-0058 to extract the relevant binaries from app package.
Use MASTG-TECH-0066 to look for the relevant APIs in the app binaries.

Observation

The output should contain a list of locations where relevant APIs are used.

Evaluation

The test case fails if calls are made to UIPasteboard.generalPasteboard and sensitive data is written to it.

Further Validation Required:

Since determining what constitutes sensitive data is context-dependent, inspect each reported code location using MASTG-TECH-0076:

Determine whether the data written to the pasteboard is sensitive (e.g., passwords, tokens, or personal data).

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- OWASP Mobile Application Security Testing Guide (MASTG) v2.0.0, Juni 2026, aus OWASP/mastg: © The OWASP Foundation, lizenziert unter CC BY-SA 4.0. Nur die Tests und Best Practices, ohne Codebeispiele, Bilder, Werkzeuge und Apps. Änderungen: in das GRCA-Format umgewandelt, der Wortlaut unverändert; Verweise auf andere Seiten des MASTG als Links zu mas.owasp.org; die Schwachstelle jedes Tests in der Nummerierung der MASWE v1 und mit ihr verknüpft. Diese Bearbeitungen stehen ebenfalls unter CC BY-SA 4.0.
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