CVE-2020-1025

An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access. To exploit this vulnerability, ...

Privilege escalation

An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access. To exploit this vulnerability, ...

CVE-2020-1025

CVE-2020-1025 affects Microsoft SharePoint Server and Skype for Business Server. The vulnerability is an elevation of privilege caused by improper OAuth token validation, enabling an attacker to bypass authentication by modifying the token. The published fixes modify how tokens are validated to a...

Microsoft Tackles 123 Fixes for July Patch Tuesday

A critical DNS bug and a publicly known elevation-of-privilege flaw top Microsoft’s July Patch Tuesday list of 123 fixes. The DNS flaw is a remote code-execution bug and is touted as one of the most critical Windows vulnerabilities released this year, earning the highest-severity CVSS score of 10...

Microsoft Office Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access. To exploit this vulnerability, ...

Description of the security update for Skype for Business Server 2019 CU 2: July 14, 2020

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Microsoft Teams help & learning

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CVE-2020-1025: Improper Input Validation

An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access. To exploit this vulnerability, ...

PT-2020-3078

Name of the Vulnerable Software and Affected Versions Microsoft SharePoint Server affected versions not specified Skype for Business Server affected versions not specified Description An elevation of privilege issue occurs when Microsoft SharePoint Server and Skype for Business Server improperly...

CVE-2020-7692

PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized...

GitLab: Ability to bypass email verification for OAuth grants results in accounts takeovers on 3rd parties

Summary There's a limitation that requires a validated email before going through the OAuth flow, however this is bypassable. Bypassing this means the target site assumes your email is validated, and actually ends up signing you in with an non-validated email. This behavior can frequently lead to...

Improper Authorization

Google OAuth Client is vulnerable to improper authorization. Due to a flaw in implementation for Proof Key for Code Exchange PKCE, the code sent by authorization server is not properly handled to authorize the client that issued the initial authorization request, allowing an attacker with a...

Google APIs google-oauth-java-client security bypass vulnerability

Google google-oauth-java-client Google OAuth Client Library for Java is a U.S. Google Google company's a Java-based Google OAuth Open Authorization client library. Google com.google.oauth-client: A security vulnerability exists in versions prior to google-oauth-client 1.31.0. An attacker can...

Exclusive: Any Chingari App (Indian TikTok Clone) Account Can Be Hacked Easily

Following vulnerability disclosure in the Mitron app, another viral TikTok clone in India has now been found vulnerable to a critical but easy-to-exploit authentication bypass vulnerability, allowing anyone to hijack any user account and tamper with their information, content, and even upload...

Microsoft Warns on OAuth Attacks Against Cloud App Users

Against the backdrop of widespread remote working and the increased use of collaboration apps, attackers are ramping up application-based attacks that exploit OAuth 2.0, Microsoft is warning. OAuth is an open standard for access delegation, commonly used as a way for people to sign into services...

CVE-2020-7692

PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized...

CVE-2020-7692

PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized...

DEBIAN-CVE-2020-7692

PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized...

CVE-2020-7692

PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized...

Authorization

PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized...