Weakness (CWE)
CWE-294: Authentication Bypass by Capture-replay
A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).
More detail
Capture-replay attacks are common and can be difficult to defeat without cryptography. They are a subset of network injection attacks that rely on observing previously-sent valid commands, then changing them slightly if necessary and resending the same commands to the server.
How to prevent it (2 mitigations)
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Architecture and Design
Utilize some sequence or time stamping functionality along with a checksum which takes this into account in order to ensure that messages can be parsed only once.
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Architecture and Design
Since any attacker who can listen to traffic can see sequence numbers, it is necessary to sign messages with some kind of cryptography to ensure that sequence numbers are not simply doctored along with content.
Source: MITRE CWE-294
109 results · Clear filters · Feed
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High 7.6
Better Auth OAuth Provider: Race Condition in Authorization Code Exchange Enables Multi-Use Code Redemption
Better Auth is an authentication and authorization library for TypeScript. From 1.6.0 until 1.6.11, the @better-auth/oauth-provider POST /oauth2/token endpoint for the authorization_code grant redeems a single-use authorization code through a non-atomic find-…
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High 7.4
Misskey: TOTP tokens can be reused
Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password (TOTP) authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-…
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High 7.4
CoreWCF: XML Signature Wrapping in WS-Security endorsing/supporting signature verification allows replay of captured signed messages
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF WS-Security endorsing and supporting signature verification does not ensure the selected ds:Signature covers the expected Security …
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High 7.1
Gitea TOTP single-use enforcement defect allows OTP replay
Gitea versions from 1.5.0 before 1.26.3 have a TOTP single-use enforcement defect that allows a valid TOTP code to be accepted more than once across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path.
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High 7.4
Rocket.Chat: Apple Sign-In skips JWT claims validation, allowing expired and cross-audience token replay
Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, Rocket.Chat's Apple Sign-In handler verifies JWT signatures but skips claims validation. Any Apple-signed JWT wi…
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High 8.6
Lack of cryptographic protection in Wertheim SafeController 5400 enables RS-485 message sniffing and replay
The Wertheim SafeController 5400, Controller 5400 - AssemblyVersion 6.11.8130.22320, uses RS-485 communication between the server and the microcontroller without cryptographic protection. An attacker with access to the communication path between the server an…
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High 8.1
CVE-2026-9095
Casdoor versions 2.362.0 and earlier map SAML assertions to user sessions without replay protection. The ParseSamlResponse() function in object/saml_sp.go calls sp.RetrieveAssertionInfo() and immediately maps the result to a user session. There is no assertio…
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High 8.1
azureauthextension Authenticate method does not validate bearer tokens, allowing auth bypass via replay
azureauthextension is the Azure Authenticator Extension. From 0.124.0 to 0.150.0, a server-side authentication bypass in azureauthextension allows any party who holds a single valid Azure access token for any scope the collector's configured identity can mint…
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High 7.5
OpenClaw < 2026.3.28 - Webhook Replay via Query Parameter Reordering in Plivo V3
OpenClaw before 2026.3.28 contains a webhook replay vulnerability in Plivo V3 signature verification that canonicalizes query ordering for signatures but hashes raw URLs for replay detection. Attackers can reorder query parameters to bypass replay cache detec…
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High 7.5
OpenAirInterface v2.2.0 accepts Security Mode Complete without any integrity protection. Configuration has supported in…
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High 7.5
mppx: Tempo has a session close voucher bypass vulnerability due to settled amount equality
mppx is a TypeScript interface for machine payments protocol. Prior to version 0.4.11, the tempo/session cooperative close handler validated the close voucher amount using "<" instead of "<=" against the on-chain settled amount. An attacker could submit a clo…
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High 8.3
Authentication Bypass due to Improper Session Validation
Authentication bypass by capture-replay vulnerability in ABB AWIN GW100 rev.2, ABB AWIN GW120.This issue affects AWIN GW100 rev.2: 2.0-0, 2.0-1; AWIN GW120: 1.2-0, 1.2-1.
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High 8.2
OneUptime has WebAuthn 2FA bypass: server accepts client-supplied challenge instead of server-stored value, allowing credential replay
OneUptime is a solution for monitoring and managing online services. In version 10.0.11 and prior, the WebAuthn authentication implementation does not store the challenge on the server side. Instead, the challenge is returned to the client and accepted back f…
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High 8.4
Micca KE700 Acceptance of previously used rolling codes
The Micca KE700 system contains flawed resynchronization logic and is vulnerable to replay attacks. This attack requires sending two previously captured codes in a specific sequence. As a result, the system can be forced to accept previously used (stale) roll…
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High 7.4CVE-2025-69822 Public exploit
An issue in Atomberg Atomberg Erica Smart Fan Firmware Version: V1.0.36 allows an attacker to obtain sensitive informat…
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High 7.7
Wazuh NetNTLMv2 Hash Theft In Multiple Centralized Configuration Capabilities
Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to version 4.13.0, a vulnerability in Wazuh Agent allows authenticated attackers to force NTLM authentication through malicious UNC paths in various agent conf…
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High 7.5
Jenkins SAML Plugin does not implement a replay cache
Jenkins SAML Plugin 4.583.vc68232f7018a_ and earlier does not implement a replay cache, allowing attackers able to obtain information about the SAML authentication flow between a user's web browser and Jenkins to replay those requests, authenticating to Jenki…
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High 7.4
A vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.2), S…
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High 8.0
Cognex In-Sight Explorer and In-Sight Camera Firmware Authentication Bypass by Capture-replay
Cognex In-Sight Explorer and In-Sight Camera Firmware expose a proprietary protocol on TCP port 1069 to perform management operations such as modifying system properties. The user management functionality handles sensitive data such as registered usernames an…
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High 8.8
Dell OpenManage Network Integration, versions prior to 3.8, contains an Authentication Bypass by Capture-replay vulnera…
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High 7.6
Tiiwee X1 Alarm System TWX1HAKV2 allows Authentication Bypass by Capture-replay, leading to physical Access to the prot…
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High 8.0
ZITADEL Allows IdP Intent Token Reuse
The identity infrastructure software ZITADEL offers developers the ability to manage user sessions using the Session API. This API enables the use of IdPs for authentication, known as idp intents. Following a successful idp intent, the client receives an id a…
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High 7.6
Authentication Bypass in Elfatek Elektronics' ANKA JPD-00028
Authentication Bypass by Capture-replay vulnerability in Elfatek Elektronics ANKA JPD-00028 allows Session Hijacking. This issue affects ANKA JPD-00028: before V.01.01.
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High 7.1
SMB forced authentication vulnerability in Sage 200 Spain
SMB forced authentication vulnerability in versions prior to 2025.35.000 of Sage 200 Spain. This vulnerability allows an authenticated attacker with administrator privileges to obtain NTLMv2-SSP Hash by changing any of the paths to a UNC path pointing to a se…
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High 8.8
Changing Information Technology CGFIDO - Authentication Bypass
The login mechanism via device authentication of CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability. If a user visits a forged website, the agent program deployed on their device will send an authentication signature to the…
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High 7.6
Dell Wyse Management Suite, version WMS 4.4 and before, contain an Authentication Bypass by Capture-replay vulnerabilit…
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High 7.8
In the development options section of the Settings app, there is a possible authentication bypass due to a missing perm…
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High 7.7
A vulnerability in Veeam Backup & Replication Enterprise Manager has been identified, which allows attackers to perform…
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High 7.5
There is a privilege escalation vulnerability in ZTE ZXR10 ZSR V2 intelligent multi service router . An authenticated a…
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High 8.8
IoT Haat Smart Plug IH-IN-16A-S v5.16.1 is vulnerable to Authentication Bypass by Capture-replay.
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High 8.8
AutomationDirect DirectLogic H2-DM1E Authentication Bypass by Capture-replay
The session hijacking attack targets the application layer's control mechanism, which manages authenticated sessions between a host PC and a PLC. During such sessions, a session key is utilized to maintain security. However, if an attacker captures this sessi…
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High 8.2
An attacker with local access to machine where MicroSCADA X SYS600 is installed, could enable the session logging suppo…
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High 8.4
An issue in Horizon Business Services Inc. Caterease Software 16.0.1.1663 through 24.0.1.2405 and possibly later versio…
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High 7.1
Auth Bypass in Quick Share
There exists a vulnerability in Quick Share/Nearby, where an attacker can bypass the accept file dialog on Quick Share Windows. Normally in Quick Share Windows app we can't send a file without the user accept from the receiving device if the visibility is set…
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High 8.7
Authentication Bypass by Capture-replay in Motorola Solutions Vigilant Fixed LPR Coms Box (BCAV1F2-C600)
Transmitted data is logged between the device and the backend service. An attacker could use these logs to perform a replay attack to replicate calls.
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High 7.1
@strapi/plugin-users-permissions leaks 3rd party authentication tokens and authentication bypass
Strapi is an open-source content management system. By combining two vulnerabilities (an `Open Redirect` and `session token sent as URL query parameter`) in @strapi/plugin-users-permissions before version 4.24.2, is its possible of an unauthenticated attacker…
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High 8.8
Veeam Backup Enterprise Manager allows account takeover via NTLM relay.
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High 7.2
Veeam Backup Enterprise Manager allows high-privileged users to steal NTLM hash of Enterprise manager service account.
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High 8.8
The radio frequency communication protocol being used by Meross MSH30Q 4.5.23 is vulnerable to replay attacks, allowing…
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High 7.5
Sustainsys.Saml2 Insufficient Identity Provider Issuer Validation
Sustainsys.Saml2 library adds SAML2P support to ASP.NET web sites, allowing the web site to act as a SAML2 Service Provider. Prior to versions 1.0.3 and 2.9.2, when a response is processed, the issuer of the Identity Provider is not sufficiently validated. Th…