CVE-2021-30156

In mediawiki package, the "Special:Contributions" functionality can leak information that a "hidden" user exists...

CVE-2021-30156

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Special:Contributions can leak that a "hidden" user exists...

Updated mediawiki packages fix security vulnerability

Multiple security issues were discovered in MediaWiki: SpecialUserRights could leak whether a user existed or not, multiple code paths lacked HTML sanitisation allowing for cross-site scripting and TOTP validation applied insufficient rate limiting against brute force attempts CVE-2020-25812,...

CVE-2020-13998

Citrix XenApp 6.5, when 2FA is enabled, allows a remote unauthenticated attacker to ascertain whether a user exists on the server, because the 2FA error page only occurs after a valid username is entered. NOTE: This vulnerability only affects products that are no longer supported by the maintaine...

CVE-2020-13998

Citrix XenApp 6.5, when 2FA is enabled, allows a remote unauthenticated attacker to ascertain whether a user exists on the server, because the 2FA error page only occurs after a valid username is entered. NOTE: This vulnerability only affects products that are no longer supported by the maintaine...

CVE-2020-13998

Citrix XenApp 6.5, when 2FA is enabled, allows a remote unauthenticated attacker to ascertain whether a user exists on the server, because the 2FA error page only occurs after a valid username is entered. NOTE: This vulnerability only affects products that are no longer supported by the maintaine...

PT-2020-13827 · Citrix · Citrix Xenapp

Name of the Vulnerable Software and Affected Versions: Citrix XenApp version 6.5 Description: The issue allows a remote unauthenticated attacker to determine whether a user exists on the server when two-factor authentication 2FA is enabled. This is because the 2FA error page is only displayed aft...

MSOLSpray - A Password Spraying Tool For Microsoft Online Accounts (Azure/O365)

A password spraying tool for Microsoft Online accounts Azure/O365. The script logs if a user cred is valid, if MFA is enabled on the account, if a tenant doesn't exist, if a user doesn't exist, if the account is locked, or if the account is disabled. BE VERY CAREFUL NOT TO LOCKOUT ACCOUNTS! Why...

SUSE-SU-2018:3776-2 Security update for openssh

This update for openssh fixes the following issues: Following security issues have been fixed: - CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. OpenSSH developers do not...

CVE-2019-7550

In JForum 2.1.8, an unauthenticated, remote attacker can enumerate whether a user exists by using the "create user" function. If a register/check/username?username= request corresponds to a username that exists, then an "is already in use" error is produced. NOTE: this product is discontinued...

OpenSSH sshd Username Information Disclosure (CVE-2018-15473)

An information disclosure vulnerability exists in OpenSSH. The vulnerability is due to the different ways in which the sshd daemon responds to crafted SSH packets. A successful attack can result in the attacker being able to determine whether a user exists on the system...

SUSE SLED15 / SLES15 Security Update : openssh (SUSE-SU-2018:3686-1)

This update for openssh fixes the following issues : CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. OpenSSH developers do not want to treat such a username enumeration o...

openSUSE: Security Advisory for openssh (openSUSE-SU-2018:3946-1)

The remote host is missing an update for the Copyright C 2018 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

SUSE-SU-2018:3910-1 Security update for openssh

This update for openssh fixes the following issues: Following security issues have been fixed: - CVE-2018-15473: OpenSSH was prone to a user existance oracle vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully...

openSUSE: Security Advisory for openssh (openSUSE-SU-2018:3801-1)

The remote host is missing an update for the Copyright C 2018 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

SUSE-SU-2018:3776-1 Security update for openssh

This update for openssh fixes the following issues: Following security issues have been fixed: - CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. OpenSSH developers do not...

SUSE-SU-2018:3768-1 Security update for openssh-openssl1

This update for openssh-openssl1 fixes the following issues: Security issues fixed: - CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. OpenSSH developers do not want to...

Timing Attack

pac4j-sql is vulnerable to timing attack. The password encoding of an authentication request is performed after a user is found. This causes a delay and provides hint to an attacker if the user exists...

CVE-2018-15919

OpenSSH server was found to respond differently to failed GSSAPI authentication attempts when the target user existed versus when that user did not exist. A remote attacker could use this bug to test for the existence of particular usernames on a target system. Mitigation If GSSAPI Authentication...

Design/Logic Flaw

Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration or...