+V13.4 Unintended Information Leakage
---+V13.4.1 Verify that the application is deployed either without any source control metadata, including the …
---+V13.4.2 Verify that debug modes are disabled for all components in production environments to prevent …
---+V13.4.3 Verify that web servers do not expose directory listings to clients unless explicitly intended.
---+V13.4.4 Verify that using the HTTP TRACE method is not supported in production environments, to avoid …
---+V13.4.5 Verify that documentation (such as for internal APIs) and monitoring endpoints are not exposed …
---+V13.4.6 Verify that the application does not expose detailed version information of backend components.
---+V13.4.7 Verify that the web tier is configured to only serve files with specific file extensions to prevent …

V13.4 Unintended Information Leakage

Production configurations should be hardened to avoid disclosing unnecessary data. Many of these issues are rarely rated as significant risks but are often chained with other vulnerabilities. If these issues are not present by default, it raises the bar for attacking an application.

For example, hiding the version of server-side components does not eliminate the need to patch all components, and disabling folder listing does not remove the need to use authorization controls or keep files away from the public folder, but it raises the bar.

1. Vue d’ensemble

Intitulé	Norme
V13.4.1 Verify that the application is deployed either without any source control metadata, including the …	Verify that the application is deployed either without any source control metadata, including the .git or .svn folders, or in a way that these folders are inaccessible both externally and to the application itself.
V13.4.2 Verify that debug modes are disabled for all components in production environments to prevent …	Verify that debug modes are disabled for all components in production environments to prevent exposure of debugging features and information leakage.
V13.4.3 Verify that web servers do not expose directory listings to clients unless explicitly intended.	Verify that web servers do not expose directory listings to clients unless explicitly intended.
V13.4.4 Verify that using the HTTP TRACE method is not supported in production environments, to avoid …	Verify that using the HTTP TRACE method is not supported in production environments, to avoid potential information leakage.
V13.4.5 Verify that documentation (such as for internal APIs) and monitoring endpoints are not exposed …	Verify that documentation (such as for internal APIs) and monitoring endpoints are not exposed unless explicitly intended.
V13.4.6 Verify that the application does not expose detailed version information of backend components.	Verify that the application does not expose detailed version information of backend components.
V13.4.7 Verify that the web tier is configured to only serve files with specific file extensions to prevent …	Verify that the web tier is configured to only serve files with specific file extensions to prevent unintentional information, configuration, and source code leakage.

1.1 Références

1.2 Exigences identifiées

1.3 Réglementations associées

2. Exigences identifiées

Exigences
Source	Exigence

3. Réglementations associées

Réglementations
Source	Réglementation

OWASP -
EN: Publications of the OWASP Foundation, https://owasp.org/. OWASP® is a registered trademark of the OWASP Foundation, Inc.; GRCA is not affiliated with, nor endorsed by, the OWASP Foundation. Only the versions published by OWASP are authoritative.
- OWASP Application Security Verification Standard (ASVS) 5.0.0, May 2025, from OWASP/ASVS: © 2008-2025 The OWASP Foundation, licensed under CC BY-SA 4.0. Changes: divided into sections and converted into the GRCA format, the wording unchanged. These adaptations are shared under CC BY-SA 4.0 as well.
- OWASP Mobile Application Security Verification Standard (MASVS) v2.1.0, January 2024, from OWASP/masvs: © The OWASP Foundation, licensed under CC BY-SA 4.0. Changes: converted into the GRCA format, the wording unchanged. These adaptations are shared under CC BY-SA 4.0 as well.
- OWASP Mobile Application Security Weakness Enumeration (MASWE) v1.0.0, August 2026, from OWASP/maswe: © The OWASP Foundation, licensed under CC BY-SA 4.0. Changes: converted into the GRCA format, the wording unchanged, linked to the MASVS controls they map to. These adaptations are shared under CC BY-SA 4.0 as well.
- OWASP Mobile Application Security Testing Guide (MASTG) v2.0.0, June 2026, from OWASP/mastg: © The OWASP Foundation, licensed under CC BY-SA 4.0. The tests and best practices only, without code samples, images, tools or apps. Changes: converted into the GRCA format, the wording unchanged; references to other pages of the MASTG as links to mas.owasp.org; the weakness of each test in the numbering of MASWE v1 and linked to it. These adaptations are shared under CC BY-SA 4.0 as well.
- OWASP Software Assurance Maturity Model (SAMM) v2.2.0, July 2026, from owaspsamm/core: © The OWASP Foundation, licensed under CC BY-SA 4.0. Changes: converted into the GRCA format, the wording unchanged; short codes (G-SM-1-A) built from the model, the assessment questions as assessment procedures of their activities. These adaptations are shared under CC BY-SA 4.0 as well.
- OWASP Top 10:2025, from OWASP/Top10: © 2003-2025 The OWASP® Foundation, Inc., licensed under CC BY-SA 4.0. The ten categories, without the icons. Changes: converted into the GRCA format, the wording unchanged. These adaptations are shared under CC BY-SA 4.0 as well. The names of the mapped CWEs (Common Weakness Enumeration): © 2006–2026 The MITRE Corporation. License: The MITRE Corporation hereby grants you a non-exclusive, royalty-free license to use CWE for research, development, and commercial purposes. Any copy you make for such purposes is authorized on the condition that you reproduce MITRE’s copyright designation and this license in any such copy. See the CWE Terms of Use. CWE™ is a trademark of The MITRE Corporation.
DE: Veröffentlichungen der OWASP Foundation, https://owasp.org/. OWASP® ist eine eingetragene Marke der OWASP Foundation, Inc.; GRCA steht in keiner Verbindung zur OWASP Foundation und wird von ihr nicht unterstützt. Maßgeblich sind allein die von OWASP veröffentlichten Fassungen.
- OWASP Application Security Verification Standard (ASVS) 5.0.0, Mai 2025, aus OWASP/ASVS: © 2008-2025 The OWASP Foundation, lizenziert unter CC BY-SA 4.0. Änderungen: in Abschnitte aufgeteilt und in das GRCA-Format umgewandelt, der Wortlaut unverändert. Diese Bearbeitungen stehen ebenfalls unter CC BY-SA 4.0.
- OWASP Mobile Application Security Verification Standard (MASVS) v2.1.0, Januar 2024, aus OWASP/masvs: © The OWASP Foundation, lizenziert unter CC BY-SA 4.0. Änderungen: in das GRCA-Format umgewandelt, der Wortlaut unverändert. Diese Bearbeitungen stehen ebenfalls unter CC BY-SA 4.0.
- OWASP Mobile Application Security Weakness Enumeration (MASWE) v1.0.0, August 2026, aus OWASP/maswe: © The OWASP Foundation, lizenziert unter CC BY-SA 4.0. Änderungen: in das GRCA-Format umgewandelt, der Wortlaut unverändert, mit den MASVS-Controls verknüpft, denen sie zugeordnet sind. Diese Bearbeitungen stehen ebenfalls unter CC BY-SA 4.0.
- 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.
- OWASP Software Assurance Maturity Model (SAMM) v2.2.0, Juli 2026, aus owaspsamm/core: © The OWASP Foundation, lizenziert unter CC BY-SA 4.0. Änderungen: in das GRCA-Format umgewandelt, der Wortlaut unverändert; Kürzel (G-SM-1-A) aus dem Modell gebildet, die Assessment-Fragen als Prüfverfahren ihrer Aktivitäten. Diese Bearbeitungen stehen ebenfalls unter CC BY-SA 4.0.
- OWASP Top 10:2025, aus OWASP/Top10: © 2003-2025 The OWASP® Foundation, Inc., lizenziert unter CC BY-SA 4.0. Die zehn Kategorien, ohne die Symbole. Änderungen: in das GRCA-Format umgewandelt, der Wortlaut unverändert. Diese Bearbeitungen stehen ebenfalls unter CC BY-SA 4.0. Die Namen der zugeordneten CWEs (Common Weakness Enumeration): © 2006–2026 The MITRE Corporation. MITRE erlaubt die Nutzung für Forschung, Entwicklung und kommerzielle Zwecke, wenn jede Kopie den Urheberrechtsvermerk und die Lizenz enthält; maßgeblich ist der englische Wortlaut der Lizenz oben und die CWE Terms of Use. CWE™ ist eine Marke der MITRE Corporation.