Exploring Azure Active Directory Attack Surface: Enumerating Authentication Methods with Open-Source Intelligence Tools

Nestori Syynimaa

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Paper

Exploring Azure Active Directory Attack Surface: Enumerating Authentication Methods with Open-Source Intelligence Tools

Topics: Ethics, Privacy and Security of HCI; Security

In Proceedings of the 24th International Conference on Enterprise Information Systems - Volume 2: ICEIS, 142-147, 2022

Author: Nestori Syynimaa

Affiliation: Secureworks, Counter Threat Unit, U.S.A. Faculty of Information Technology, University of Jyväskylä, Jyväskylä, Finland

Keyword(s): Azure Active Directory, Azure Ad, OSINT, Attack, Enumeration, SAML, Kerberos.

Abstract: Azure Active Directory (Azure AD) is Microsoft’s identity and access management service used globally by 90 per cent of Fortune 500 companies and many other organisations. Recent attacks by nation-state adversaries have targeted these organisations by exploiting known attack vectors. In this paper, open-source intelligence (OSINT) is gathered from organisations using Azure AD to explore the current attack surface. OSINT is collected from Fortune 500 companies and top 2000 universities globally. The collected OSINT includes authentication methods used by the organisation and the full name and phone number of the primary technical contact. The findings reveal that most organisations are using Azure AD and that majority of these organisations are using authentication methods exploited during the recent attacks by nation-state adversaries.

CC BY-NC-ND 4.0

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Paper citation in several formats:

Syynimaa, N. (2022). Exploring Azure Active Directory Attack Surface: Enumerating Authentication Methods with Open-Source Intelligence Tools. In Proceedings of the 24th International Conference on Enterprise Information Systems - Volume 2: ICEIS; ISBN 978-989-758-569-2; ISSN 2184-4992, SciTePress, pages 142-147. DOI: 10.5220/0011077100003179

@conference{iceis22,
author={Nestori Syynimaa},
title={Exploring Azure Active Directory Attack Surface: Enumerating Authentication Methods with Open-Source Intelligence Tools},
booktitle={Proceedings of the 24th International Conference on Enterprise Information Systems - Volume 2: ICEIS},
year={2022},
pages={142-147},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011077100003179},
isbn={978-989-758-569-2},
issn={2184-4992},
}

TY - CONF

JO - Proceedings of the 24th International Conference on Enterprise Information Systems - Volume 2: ICEIS
TI - Exploring Azure Active Directory Attack Surface: Enumerating Authentication Methods with Open-Source Intelligence Tools
SN - 978-989-758-569-2
IS - 2184-4992
AU - Syynimaa, N.
PY - 2022
SP - 142
EP - 147
DO - 10.5220/0011077100003179
PB - SciTePress