Weakness (CWE)
CWE-303: Incorrect Implementation of Authentication Algorithm
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
Source: MITRE CWE-303
39 results · Clear filters · Feed
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Medium 5.4
Keycloak-services: keycloak-services: indefinite access token renewal via standard token exchange v2
A flaw was found in the token exchange mechanism of Keycloak. When using Standard Token Exchange V2, the system issues new tokens with a fresh lifetime based on the requester clients configuration instead of limiting it to the original tokens expiration. This…
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Medium 6.8
SSH Multi-Factor Authentication Bypass in Progress WS_FTP Server
Multi-Factor Authentication Bypass vulnerability in SSH component in Progress Software WS_FTP Server versions prior to 2024.0.6, and 2025.0.3 on Windows allows authenticated users to bypass MFA requirements through improper association of authentication facto…
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Medium 5.4
Apache Answer: User Center integration does not revoke first-login sessions after central account suspension
Incorrect implementation of authentication algorithm vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. A flaw in the User Center login integration can cause a newly created external user session to omit its external identity, al…
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Medium 6.5
Windows Shell Spoofing Vulnerability
Incorrect implementation of authentication algorithm in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
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Medium 4.7
On affected platforms running Arista EOS with VRRPv2 IP Authentication Header (IP-AH) authentication configured, an unauthenticated attacker with access to the layer 2 network segment on which VRRP is running could bypass VRRP authentication and claim the
On affected platforms running Arista EOS with VRRPv2 IP Authentication Header (IP-AH) authentication configured, an unauthenticated attacker with access to the layer 2 network segment on which VRRP is running could bypass VRRP authentication and claim the vir…
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Medium 5.6
Improper Authentication Verification in the Okta Hyperdrive Agent MFA Response Handling
The Okta Hyperdrive agent plugin returns a success response without a signed SAML assertion when the organization's policy requires no MFA for a given user. The response contains only a bare boolean validation indicator with no cryptographic artifact, resulti…
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Medium 5.3
DEEBOT PRO M1 and DEEBOT PRO K1VAC incorrectly implement authentication algorithm in Websocket communications. An unaut…
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Medium 6.7
Ekushey Project Manager CRM 5.0 Missing Uniqueness Constraint via Client Email
Ekushey Project Manager CRM through version 5.0 contains a missing uniqueness constraint vulnerability that allows authenticated administrators to create duplicate client accounts with identical email and password credentials. Attackers can exploit the lack o…
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Medium 5.6
Authentication Bypass via Null Short-Circuit in Grav CMS Scheduler Webhook Token Check
Grav CMS scheduler-webhook plugin contains an authentication bypass vulnerability that allows unauthenticated remote attackers to trigger configured scheduled jobs by exploiting a short-circuit logic flaw in the webhook token validation. Attackers can send a …
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Medium 5.4
Org.keycloak/keycloak-services: keycloak: org.keycloak.protocol.oidc: security flaw in org.keycloak/keycloak-services
A flaw was found in Keycloak. When both realm-level and client-level `notBefore` revocation policies are configured, Keycloak's OpenID Connect (OIDC) Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have bee…
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Medium 5.7
Account Takeover via Substring Matching in OpenID Connect Authentication
Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to properly validate user identity in the OpenID {{IsSameUser()}} comparison logic, which allows an attacker to take over arbitrary user accounts via an overly …
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Medium 4.7
Tillitis: TKey Client has an Error in Protocol Implementation
Tillitis TKey Client package is a Go package for a TKey client. Versions 1.2.0 and below contain a critical bug in the tkeyclient Go module which causes 1 out of every 256 User Supplied Secrets (USS) to be silently ignored, producing the same Compound Device …
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Medium 6.5
Sricam DeviceViewer 3.12.0.1 Password Change Security Bypass
Sricam DeviceViewer 3.12.0.1 contains a password change security bypass vulnerability that allows authenticated users to change passwords without proper validation of the old password field. Attackers can inject a large payload into the old password parameter…
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Medium 5.4
Authentication bypass via userID login when email and username login are disabled
Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate login method restrictions which allows an authenticated user to bypass SSO-only login requirements via userID-based authentication. Mattermost Advisory ID: MM…
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Medium 6.3
Python Social Auth - Django has unsafe account association
Python Social Auth is a social authentication/registration mechanism. In versions prior to 5.6.0, upon authentication, the user could be associated by e-mail even if the `associate_by_email` pipeline was not included. This could lead to account compromise whe…
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Medium 6.5
Inappropriate implementation in File Picker in Google Chrome prior to 139.0.7258.127 allowed a remote attacker who conv…
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Medium 6.9
SignXML's signature verification with HMAC is vulnerable to an algorithm confusion attack
SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set (`signxml.XMLVerifier.verify(require_x509=False, hmac_key=...`), versions of SignXML pri…
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Medium 5.4
Bypass of System Admin User Deactivation Controls for Personal Access Tokens in Mattermost Server
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token valida…
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Medium 4.2
Google OAuth Authentication Bypass for Converted Bot Accounts
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAu…
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Medium 5.4
Unauthorized Bot Login Using Credentials
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly one time via normal credentials.
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Medium 5.5
Improper session handling in B&R APROL
An Incorrect Implementation of Authentication Algorithm and Exposure of Data Element to Wrong Ses-sion vulnerability in the session handling used in B&R APROL <4.4-00P5 may allow an authenticated network attacker to take over a currently active user session w…
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Medium 6.3
GLPI vulnerable to unauthorized authentication by email using the OAuthIMAP plugin
GLPI is a free asset and IT management software package. Starting in version 9.5.0 and prior to version 10.0.18, if a "Mail servers" authentication provider is configured to use an Oauth connection provided by the OauthIMAP plugin, anyone can connect to GLPI …
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Medium 5.3
Apache Kafka: SCRAM authentication vulnerable to replay attacks when used without encryption
Incorrect Implementation of Authentication Algorithm in Apache Kafka's SCRAM implementation. Issue Summary: Apache Kafka's implementation of the Salted Challenge Response Authentication Mechanism (SCRAM) did not fully adhere to the requirements of RFC 5802 [1…
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Medium 5.4
eLabFTW MFA bypass
eLabFTW is an open source electronic lab notebook for research labs. A vulnerability has been found starting in version 4.6.0 and prior to version 5.1.0 that allows an attacker to bypass eLabFTW's built-in multifactor authentication mechanism. An attacker who…
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Medium 6.5
Multi-Factor Authentication Bypass in Progress WS_FTP Server
In WS_FTP Server versions before 8.8.9 (2022.0.9), an Incorrect Implementation of Authentication Algorithm in the Web Transfer Module allows users to skip the second-factor verification and log in with username and password only.
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Medium 5.0
Eclipse EDC: Consumer pull transfer token validation checks not applied
In Eclipse Dataspace Components, from version 0.5.0 and before version 0.9.0, the ConsumerPullTransferTokenValidationApiController does not check for token validity (expiry, not-before, issuance date), which can allow an attacker to bypass the check for token…
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Medium 6.5
Authentication bypass in GoAnywhere MFT prior to 7.6.0
An authentication bypass vulnerability in GoAnywhere MFT prior to 7.6.0 allows Admin Users with access to the Agent Console to circumvent some permission checks when attempting to visit other pages. This could lead to unauthorized information disclosure or mo…
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Medium 4.8
CraftCMS Plugin - Two-Factor Authentication - TOTP Token Stays Valid After Use
The CraftCMS plugin Two-Factor Authentication through 3.3.3 allows reuse of TOTP tokens multiple times within the validity period.
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Medium 5.8
Asterisk' res_pjsip_endpoint_identifier_ip: wrongly matches ALL unauthorized SIP requests
Asterisk is an open source private branch exchange and telephony toolkit. After upgrade to 18.23.0, ALL unauthorized SIP requests are identified as PJSIP Endpoint of local asterisk server. This vulnerability is fixed in 18.23.1, 20.8.1, and 21.3.1.
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Medium 6.5CVE-2023-32152 EPSS 29%
D-Link DIR-2640 HNAP LoginPassword Authentication Bypass Vulnerability
D-Link DIR-2640 HNAP LoginPassword Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2640 routers. Authentication is not required to exploit this vulnerab…
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Medium 6.5CVE-2023-32148 EPSS 29%
D-Link DIR-2640 HNAP PrivateLogin Authentication Bypass Vulnerability
D-Link DIR-2640 HNAP PrivateLogin Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2640 routers. Authentication is not required to exploit this vulnerabi…
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Medium 4.9
social-auth-app-django Improper Handling of Case Sensitivity vulnerability
Python Social Auth is a social authentication/registration mechanism. Prior to version 5.4.1, due to default case-insensitive collation in MySQL or MariaDB databases, third-party authentication user IDs are not case-sensitive and could cause different IDs to …
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Medium 4.7
Shadow-utils: possible password leak during passwd(1) change
A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enoug…
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Medium 4.8
Issuer not verified from obtained token in user_oidc
user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack return…
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Medium 6.5
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-…
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Medium 4.8
Incorrect Implementation of Authentication Algorithm
Incorrect implementation in authentication protocol in M-Files Client before 22.5.11356.0 allows high privileged user to get other users tokens to another resource.
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Medium 6.2
Prometheus Exporter Toolkit vulnerable to basic authentication bypass
Prometheus Exporter Toolkit is a utility package to build exporters. Prior to versions 0.7.2 and 0.8.2, if someone has access to a Prometheus web.yml file and users' bcrypted passwords, they can bypass security by poisoning the built-in authentication cache. …
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Medium 4.0
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers IPSec VPN Server Authentication Bypass Vulnerability
A vulnerability in the IPSec VPN Server authentication functionality of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to bypass authentication controls and access the IPSec VPN network. This vul…
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Medium 6.5
Subject Confirmation Method not validated in Saml2 Authentication Services for ASP.NET
In Saml2 Authentication Services for ASP.NET versions before 1.0.2, and between 2.0.0 and 2.6.0, there is a vulnerability in how tokens are validated in some cases. Saml2 tokens are usually used as bearer tokens - a caller that presents a token is assumed to …