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General Security Discussions
Consent Phishing - Application-based attacks
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<blockquote data-quote="Bot" data-source="post: 893404" data-attributes="member: 52014"><p>While you may be familiar with attacks focused on users, such as <a href="https://www.microsoft.com/security/blog/2020/03/20/protecting-against-coronavirus-themed-phishing-attacks/" target="_blank">email phishing</a> or <a href="https://techcommunity.microsoft.com/t5/azure-active-directory-identity/all-your-creds-are-belong-to-us/ba-p/855124" target="_blank">credential compromise</a>, <strong>application-based attacks</strong>, such as <strong>consent phishing</strong>, is another threat vector you must be aware of. Today we wanted to share one of the ways application-based attacks can target the valuable data your organization cares about, and what you can do today to stay safe.</p><p></p><p>While <a href="https://attack.mitre.org/techniques/T1527/" target="_blank">each attack tends to vary, the core steps usually look something like this</a>:</p><ol> <li data-xf-list-type="ol">An attacker registers an app with an OAuth 2.0 provider, such as Azure Active Directory.</li> <li data-xf-list-type="ol">The app is configured in a way that makes it seem trustworthy, like using the name of a popular product used in the same ecosystem.</li> <li data-xf-list-type="ol">The attacker gets a link in front of users, which may be done through conventional email-based phishing, by compromising a non-malicious website, or other techniques.</li> <li data-xf-list-type="ol">The user clicks the link and is shown an authentic consent prompt asking them to grant the malicious app permissions to data.</li> <li data-xf-list-type="ol">If a user clicks accept, they will grant the app permissions to access sensitive data.</li> <li data-xf-list-type="ol">The app gets an authorization code which it redeems for an access token, and potentially a refresh token.</li> <li data-xf-list-type="ol">The access token is used to make API calls on behalf of the user.</li> </ol><p>If the user accepts, the attacker can gain access to their mail, forwarding rules, files, contacts, notes, profile and other sensitive data and resources.</p><p></p><p><img src="https://www.microsoft.com/security/blog/wp-content/uploads/2020/07/Content-phishing-1.png" alt="An image of a Consent screen from a sample malicious app named “Risky App." class="fr-fic fr-dii fr-draggable " style="" /></p><p style="text-align: center"><em>Consent screen from a sample malicious app named “Risky App”</em></p><p></p><p></p><p>The post <a href="https://www.microsoft.com/security/blog/2020/07/08/protecting-remote-workforce-application-attacks-consent-phishing/" target="_blank">Protecting your remote workforce from application-based attacks like consent phishing</a> appeared first on <a href="https://www.microsoft.com/security/blog/" target="_blank">Microsoft Security.</a></p></blockquote><p></p>
[QUOTE="Bot, post: 893404, member: 52014"] While you may be familiar with attacks focused on users, such as [URL='https://www.microsoft.com/security/blog/2020/03/20/protecting-against-coronavirus-themed-phishing-attacks/']email phishing[/URL] or [URL='https://techcommunity.microsoft.com/t5/azure-active-directory-identity/all-your-creds-are-belong-to-us/ba-p/855124']credential compromise[/URL], [B]application-based attacks[/B], such as [B]consent phishing[/B], is another threat vector you must be aware of. Today we wanted to share one of the ways application-based attacks can target the valuable data your organization cares about, and what you can do today to stay safe. While [URL='https://attack.mitre.org/techniques/T1527/']each attack tends to vary, the core steps usually look something like this[/URL]: [LIST=1] [*]An attacker registers an app with an OAuth 2.0 provider, such as Azure Active Directory. [*]The app is configured in a way that makes it seem trustworthy, like using the name of a popular product used in the same ecosystem. [*]The attacker gets a link in front of users, which may be done through conventional email-based phishing, by compromising a non-malicious website, or other techniques. [*]The user clicks the link and is shown an authentic consent prompt asking them to grant the malicious app permissions to data. [*]If a user clicks accept, they will grant the app permissions to access sensitive data. [*]The app gets an authorization code which it redeems for an access token, and potentially a refresh token. [*]The access token is used to make API calls on behalf of the user. [/LIST] If the user accepts, the attacker can gain access to their mail, forwarding rules, files, contacts, notes, profile and other sensitive data and resources. [IMG alt="An image of a Consent screen from a sample malicious app named “Risky App."]https://www.microsoft.com/security/blog/wp-content/uploads/2020/07/Content-phishing-1.png[/IMG] [CENTER][I]Consent screen from a sample malicious app named “Risky App”[/I][/CENTER] The post [URL='https://www.microsoft.com/security/blog/2020/07/08/protecting-remote-workforce-application-attacks-consent-phishing/']Protecting your remote workforce from application-based attacks like consent phishing[/URL] appeared first on [URL='https://www.microsoft.com/security/blog/']Microsoft Security.[/URL] [/QUOTE]
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