A vulnerability in the web-based management interface of Cisco RV110W, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to disconnect clients that are connected to the guest network on an affected router. The vulnerability is due to improper authorization of an HTTP request. An attacker could exploit this vulnerability by accessing the URL for device disconnection and providing the connected device information. A successful exploit could allow the attacker to deny service to specific clients that are connected to the guest network.

A vulnerability has been identified in SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). An attacker with network access to the Application Server can cause a Denial-of-Service condition by sending specifically crafted objects via RMI. This vulnerability is independent from CVE-2019-18317 and CVE-2019-18319. Please note that an attacker needs to have network access to the Application Server in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.

A vulnerability has been identified in SPPA-T3000 MS3000 Migration Server (All versions). An attacker with network access to the MS3000 Server could trigger a Denial-of-Service condition by sending specifically crafted packets to port 7061/tcp. This vulnerability is independent from CVE-2019-18310. Please note that an attacker needs to have network access to the MS3000 in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.

A vulnerability has been identified in SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). An attacker with network access to the Application Server could cause a Denial-of-Service condition by sending specifically crafted objects via RMI. This vulnerability is independent from CVE-2019-18317 and CVE-2019-18318. Please note that an attacker needs to have network access to the Application Server in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.

In Grafana 2.x through 6.x before 6.3.4, parts of the HTTP API allow unauthenticated use. This makes it possible to run a denial of service attack against the server running Grafana.

A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a missing authentication check in an API call. An attacker who can send a request to an affected system could cause all currently authenticated users to be logged off. Repeated exploitation could cause the inability to maintain a session in the web-based management portal.

IBM Emptoris Strategic Supply Management Platform 10.0.0.x through 10.1.1.x is vulnerable to a denial of service attack. An attacker can exploit a vulnerability in the authentication features that could log out users and flood user accounts with emails. IBM X-Force ID: 118838.

Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, `istiod`, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing. This endpoint is served over TLS port 15012, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [multicluster](https://istio.io/latest/docs/setup/install/multicluster/primary-remote/) topologies, this port is exposed over the public internet. There are no effective workarounds, beyond upgrading. Limiting network access to Istiod to the minimal set of clients can help lessen the scope of the vulnerability to some extent.

In Knowage through 6.1.1, the sign up page does not invalidate a valid CAPTCHA token. This allows for CAPTCHA bypass in the signup page.

Hydra is a continuous integration service for Nix based projects. Prior to commit f7bda02, /api/push-github and /api/push-gitea are called by the corresponding forge without HTTP Basic authentication. Both forges do however feature HMAC signing with a secret key. Triggering an evaluation can be very taxing on the infrastructure when large evaluations are done, introducing potential denial of service attacks on the host running the evaluator. This issue has been patched by commit f7bda02. A workaround involves blocking /api/push-github and /api/push-gitea via a reverse proxy.

On Triangle MicroWorks' SCADA Data Gateway version <= v5.01.03, an unauthenticated attacker can send broadcast events to any user via the WebMonitor.An unauthenticated user can use this vulnerability to forcefully log out of any currently logged-in user by sending a "password change event". Furthermore, an attacker could use this vulnerability to spam the logged-in user with false events.

There is a Permission verification vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may affect the device performance.

Improper Authentication in GitHub repository thorsten/phpmyfaq prior to 3.1.10.

In Apache NiFi 1.0.0 to 1.11.4, the NiFi download token (one-time password) mechanism used a fixed cache size and did not authenticate a request to create a download token, only when attempting to use the token to access the content. An unauthenticated user could repeatedly request download tokens, preventing legitimate users from requesting download tokens.

The sensor privacy module has an authentication vulnerability. Successful exploitation of this vulnerability may cause unavailability of the smartphone's camera and microphone.

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.

BookWyrm is a social network for tracking reading. Versions prior to 0.4.5 were found to lack rate limiting on authentication views which allows brute-force attacks. This issue has been patched in version 0.4.5. Admins with existing instances will need to update their `nginx.conf` file that was created when the instance was set up. Users are advised advised to upgrade. Users unable to upgrade may update their nginx.conf files with the changes manually.

A vulnerability has been identified in Opcenter Quality V13.1 (All versions < V13.1.20220624), Opcenter Quality V13.2 (All versions < V13.2.20220624). The affected applications do not properly validate login information during authentication. This could lead to denial of service condition for existing users or allow unauthenticated remote attackers to successfully login without credentials.

The Active Directory (AD) integration component in Cisco Identity Service Engine (ISE) before 1.2.0.899 patch 7, when AD group-membership authorization is enabled, allows remote attackers to cause a denial of service (authentication outage) via a crafted Password Authentication Protocol (PAP) authentication request, aka Bug ID CSCun25815.

CWE-287: Improper Authentication vulnerability exists that could cause Denial of access to the web interface when someone on the local network repeatedly requests the /accessdenied URL.

A Missing Authentication for Critical Function vulnerability in spacewalk-java of SUSE Manager Server 4.1, SUSE Manager Server 4.2 allows remote attackers to easily exhaust available disk resources leading to DoS. This issue affects: SUSE Manager Server 4.1 spacewalk-java versions prior to 4.1.46. SUSE Manager Server 4.2 spacewalk-java versions prior to 4.2.37.

Due to missing authentication check, SAP Business one License service API - version 10.0 allows an unauthenticated attacker to send malicious http requests over the network. On successful exploitation, an attacker can break the whole application making it inaccessible.

cgi-bin/AZ_Retrain.cgi in Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices does not check for authentication, which allows remote attackers to cause a denial of service (WAN connectivity reset) via a direct request.

The web management interface in Siemens RuggedCom ROS before 3.11, ROS 3.11 before 3.11.5 for RS950G, ROS 3.12, and ROS 4.0 for RSG2488 allows remote attackers to cause a denial of service (interface outage) via crafted HTTP packets.

The authentication-manager process in the web framework in Cisco Intrusion Prevention System (IPS) 7.0(8)E4 and earlier in Cisco Intrusion Detection System (IDS) does not properly manage user tokens, which allows remote attackers to cause a denial of service (temporary MainApp hang) via a crafted connection request to the management interface, aka Bug ID CSCuq39550.

Dovecot 1.1 before 2.2.13 and dovecot-ee before 2.1.7.7 and 2.2.x before 2.2.12.12 does not properly close old connections, which allows remote attackers to cause a denial of service (resource consumption) via an incomplete SSL/TLS handshake for an IMAP/POP3 connection.

SAP Startup Service, SAP KERNEL 7.45, 7.49, and 7.52, is missing an authentication check for functionalities that require user identity and cause consumption of file system storage.

The log4jinit web application in Cisco Unified Communications Manager (UCM) does not properly validate authentication, which allows remote attackers to cause a denial of service (performance degradation) via unspecified use of this application, aka Bug ID CSCum05347.

denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names.

Cisco Unified Communications Manager (CUCM) does not properly limit the rate of authentication attempts, which allows remote attackers to cause a denial of service (application slowdown) via a series of requests, aka Bug ID CSCud39515.

A denial of service vulnerability exists in the OAS Engine SecureConfigValues functionality of Open Automation Software OAS Platform V16.00.0112. A specially-crafted network request can lead to loss of communications. An attacker can send a network request to trigger this vulnerability.

Improper validation of the Apple certificate URL in the Apple Game Center authentication adapter allows attackers to bypass authentication, making the server vulnerable to DoS attacks. The vulnerability has been fixed by improving the URL validation and adding additional checks of the resource the URL points to before downloading it.

An access control issue in the component /ManageRoute/postRoute of FreeTAKServer v1.9.8 allows unauthenticated attackers to cause a Denial of Service (DoS) via an unusually large amount of created routes, or create unsafe or false routes for legitimate users.

When connecting to a certain port Axeda agent (All versions) and Axeda Desktop Server for Windows (All versions) may allow an attacker to send a certain command to a specific port without authentication. Successful exploitation of this vulnerability could allow a remote unauthenticated attacker to shut down a specific service.

BD Alaris PC Unit, Model 8015, Versions 9.33.1 and earlier and BD Alaris Systems Manager, Versions 4.33 and earlier The affected products are vulnerable to a network session authentication vulnerability within the authentication process between specified versions of the BD Alaris PC Unit and the BD Alaris Systems Manager. If exploited, an attacker could perform a denial-of-service attack on the BD Alaris PC Unit by modifying the configuration headers of data in transit. A denial-of-service attack could lead to a drop in the wireless capability of the BD Alaris PC Unit, resulting in manual operation of the PC Unit.

The FxIAList service in ASG-Sentry Network Manager 7.0.0 and earlier does require authentication, which allows remote attackers to cause a denial of service (service termination) via the exit command to TCP port 6162, or have other impacts via other commands.

AVE DOMINAplus <=1.10.x suffers from an unauthenticated reboot command execution. Attackers can exploit this issue to cause a denial of service scenario.

In Contour ( Ingress controller for Kubernetes) before version 1.7.0, a bad actor can shut down all instances of Envoy, essentially killing the entire ingress data plane. GET requests to /shutdown on port 8090 of the Envoy pod initiate Envoy's shutdown procedure. The shutdown procedure includes flipping the readiness endpoint to false, which removes Envoy from the routing pool. When running Envoy (For example on the host network, pod spec hostNetwork=true), the shutdown manager's endpoint is accessible to anyone on the network that can reach the Kubernetes node that's running Envoy. There is no authentication in place that prevents a rogue actor on the network from shutting down Envoy via the shutdown manager endpoint. Successful exploitation of this issue will lead to bad actors shutting down all instances of Envoy, essentially killing the entire ingress data plane. This is fixed in version 1.7.0.

The decode_credentials method in actionpack/lib/action_controller/metal/http_authentication.rb in Ruby on Rails 3.x before 3.0.16, 3.1.x before 3.1.7, and 3.2.x before 3.2.7 converts Digest Authentication strings to symbols, which allows remote attackers to cause a denial of service by leveraging access to an application that uses a with_http_digest helper method, as demonstrated by the authenticate_or_request_with_http_digest method.

The sensor in Cisco Intrusion Prevention System (IPS) 7.0 and 7.1 allows remote attackers to cause a denial of service (file-handle exhaustion and mainApp hang) by making authentication attempts that exceed the configured limit, aka Bug ID CSCto51204.

An unprotected logging route may allow an attacker to write endless log statements into the database without space limits or authentication. This results in consuming the entire available hard-disk space on the Ignition 8 Gateway (versions prior to 8.0.10), causing a denial-of-service condition.

The online authentication provided by the hwKitAssistant lacks strict identity verification of applications. Successful exploitation of this vulnerability may affect availability of features,such as MeeTime.

An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.

SAP Hostcontrol does not require authentication for the SOAP SAPControl endpoint. This is SAP Security Note 2442993.

furlongm openvpn-monitor through 1.1.3 allows Authorization Bypass to disconnect arbitrary clients.

The SAP Software Deployment Manager (SDM), in certain unspecified conditions, allows remote attackers to cause a denial of service via vectors related to failed authentications.

TCP firewalls could be circumvented by sending a SYN Packets with other flags (like e.g. RST flag) set, which was not correctly discarded by the Linux TCP stack after firewalling.

The authentication framework (django.contrib.auth) in Django 1.4.x before 1.4.8, 1.5.x before 1.5.4, and 1.6.x before 1.6 beta 4 allows remote attackers to cause a denial of service (CPU consumption) via a long password which is then hashed.

SAP Host Agent, version 7.21, allows an attacker to cause a slowdown in processing of username/password-based authentication requests of the SAP Host Agent, leading to Denial of Service.

Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Security). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.1.0 and 12.2.1.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).