checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.

Cybozu Garoon 3.5 through 3.7 SP2 allows remote attackers to bypass Keitai authentication via a modified user ID in a request.

Cybozu Office 9.1.0 and earlier does not properly manage sessions, which allows remote attackers to bypass authentication by leveraging knowledge of a login URL.

The URIMappingInterceptor in Apache CXF before 2.5.8, 2.6.x before 2.6.5, and 2.7.x before 2.7.2, when using the WSS4JInInterceptor, bypasses WS-Security processing, which allows remote attackers to obtain access to SOAP services via an HTTP GET request.

Apache Axis2 allows remote attackers to forge messages and bypass authentication via an "XML Signature wrapping attack."

Java Open Single Sign-On Project Home (JOSSO) allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack."

The Wi-Fi Protected Setup (WPS) protocol, when the "external registrar" authentication method is used, does not properly inform clients about failed PIN authentication, which makes it easier for remote attackers to discover the PIN value, and consequently discover the Wi-Fi network password or reconfigure an access point, by reading EAP-NACK messages.

There is an anonymous TLS cipher suites supported vulnerability in Huawei eSpace product. An unauthenticated, remote attacker launches man-in-the-middle attack to hijack the connection from a client when the user signs up to log in by TLS. Due to insufficient authentication, which may be exploited to intercept and tamper with the data information.

Red Hat Network (RHN) Satellite Server 5.4 does not use a time delay after a failed login attempt, which makes it easier for remote attackers to conduct brute force password guessing attacks.

Nextcloud Server before 12.0.8 and 13.0.3 suffer from improper authentication on the OAuth2 token endpoint. Missing checks potentially allowed handing out new tokens in case the OAuth2 client was partly compromised.

Red Hat Certificate System (RHCS) 7.3 and 8 and Dogtag Certificate System do not require authentication for requests to decrypt SCEP one-time PINs, which allows remote attackers to obtain PINs by sniffing the network for SCEP requests and then sending decryption requests to the Certificate Authority component.

aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof an MSN server via an arbitrary certificate.

The "IP address range limitation" function in OpenPNE 1.6 through 1.8, 2.0 through 2.8, 2.10 through 2.14, and 3.0 through 3.4, when mobile device support is enabled, allows remote attackers to bypass the "simple login" functionality via unknown vectors related to spoofing.

Session fixation vulnerability in WikyBlog 1.7.3 rc2 allows remote attackers to hijack web sessions by setting the jsessionid parameter to (1) index.php/Comment/Main, (2) index.php/Comment/Main/Home_Wiky, or (3) index.php/Edit/Main.

In Pydio Cells 2.0.4, once an authenticated user shares a file selecting the create a public link option, a hidden shared user account is created in the backend with a random username. An anonymous user that obtains a valid public link can get the associated hidden account username and password and proceed to login to the web application. Once logged into the web application with the hidden user account, some actions that were not available with the public share link can now be performed.

IBM WebSphere Commerce 6.x through 6.0.0.11 and 7.x through 7.0.0.7 does not properly perform authentication for unspecified web services, which allows remote attackers to issue requests in the context of an arbitrary user's active session via unknown vectors.

Session fixation vulnerability in EMC Documentum Webtop before 6.7 SP2, Documentum WDK before 6.7 SP2, Documentum Taskspace before 6.7 SP2, and Documentum Records Manager before 6.7 SP2 allows remote attackers to hijack web sessions via unspecified vectors.

In Ubiquiti Networks EdgeSwitch X v1.1.0 and prior, an unauthenticated user can use the "local port forwarding" and "dynamic port forwarding" (SOCKS proxy) functionalities. Remote attackers without credentials can exploit this bug to access local services or forward traffic through the device if SSH is enabled in the system settings.

Eduserv OpenAthens SP 2.0 for Java allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack."

includes/User.php in MediaWiki before 1.16.5, when wgBlockDisablesLogin is enabled, does not clear certain cached data after verification of an auth token fails, which allows remote attackers to bypass authentication by creating crafted wikiUserID and wikiUserName cookies, or by leveraging an unattended workstation.

Shibboleth OpenSAML library 2.4.x before 2.4.3 and 2.5.x before 2.5.1, and IdP before 2.3.2, allows remote attackers to forge messages and bypass authentication via an "XML Signature wrapping attack."

Red Hat JBoss Operations Network (JON) 3.0.x before 3.0.1, 2.4.2, and earlier, when LDAP authentication is enabled and the LDAP bind account credentials are invalid, allows remote attackers to login to LDAP-based accounts via an arbitrary password in a login request.

Red Hat JBoss Operations Network (JON) before 2.4.2 and 3.0.x before 3.0.1 allows remote attackers to hijack agent sessions via an agent registration request without a security token.

The ocsp_check function in rlm_eap_tls.c in FreeRADIUS 2.1.11, when OCSP is enabled, does not properly parse replies from OCSP responders, which allows remote attackers to bypass authentication by using the EAP-TLS protocol with a revoked X.509 client certificate.