VYPR

CWE-294

Authentication Bypass by Capture-replay

BaseIncompleteLikelihood: High

Description

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).

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.

Hierarchy (View 1000)

Parents

Children

none

Related attack patterns (CAPEC)

CAPEC-102 · CAPEC-509 · CAPEC-555 · CAPEC-561 · CAPEC-60 · CAPEC-644 · CAPEC-645 · CAPEC-652 · CAPEC-701 · CAPEC-94

CVEs mapped to this weakness (259)

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  • CVE-2026-55759HigJun 24, 2026
    risk 0.41cvss 7.4epss 0.00

    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 with a non-empty iss…

  • CVE-2025-40807MedDec 9, 2025
    risk 0.41cvss 6.3epss 0.00

    A vulnerability has been identified in Gridscale X Prepay (All versions < V4.2.1). The affected application is vulnerable to capture-replay of authentication tokens. This could allow an authenticated but already locked-out user to establish still valid user sessions.

  • CVE-2023-20123MedApr 5, 2023
    risk 0.41cvss 6.3epss 0.00

    A vulnerability in the offline access mode of Cisco Duo Two-Factor Authentication for macOS and Duo Authentication for Windows Logon and RDP could allow an unauthenticated, physical attacker to replay valid user session credentials and gain unauthorized access to an affected…

  • CVE-2023-1886HigApr 5, 2023
    risk 0.41cvss 7.3epss 0.01

    Authentication Bypass by Capture-replay in GitHub repository thorsten/phpmyfaq prior to 3.1.12.

  • CVE-2025-8616MedAug 6, 2025
    risk 0.40cvss epss 0.00

    A weakness identified in OpenText Advanced Authentication where a Malicious browser plugin can record and replay the user authentication process to bypass Authentication. This issue affects Advanced Authentication on or before 6.5.0.

  • CVE-2023-29158MedJun 19, 2023
    risk 0.40cvss 6.1epss 0.01

    SUBNET PowerSYSTEM Center versions 2020 U10 and prior are vulnerable to replay attacks which may result in a denial-of-service condition or a loss of data integrity.

  • CVE-2026-20779HigJul 3, 2026
    risk 0.39cvss 7.1epss 0.00

    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.

  • CVE-2024-34065HigJun 12, 2024
    risk 0.39cvss 7.1epss 0.01

    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 to bypass…

  • CVE-2020-24722MedOct 7, 2020
    risk 0.39cvss 5.9epss 0.02

    An issue was discovered in the GAEN (aka Google/Apple Exposure Notifications) protocol through 2020-10-05, as used in COVID-19 applications on Android and iOS. The encrypted metadata block with a TX value lacks a checksum, allowing bitflipping to amplify a contamination attack.…

  • CVE-2013-1351MedJan 30, 2020
    risk 0.39cvss 5.9epss 0.02

    Verax NMS prior to 2.10 allows authentication via the encrypted password without knowing the cleartext password.

  • CVE-2026-46369higAug 12, 2026
    risk 0.38cvss epss

    ### Impact The validity store treats a transaction with stored `block_number = X` as "in window" only when `X > last_bn - transaction_validity_window_blocks` (strict inequality). However the protocol's `Transaction::is_valid_at` accepts a transaction for inclusion in any block…

  • CVE-2026-45720higJun 5, 2026
    risk 0.38cvss epss 0.00

    ## Summary `SAML.getSession` (`internal/pkg/auth/interceptor/saml.go`) checks the `Used` flag on a `SAMLAssertion` resource and then marks it used in two separate state operations. Because the check and the update are not atomic, concurrent requests carrying the same…

  • CVE-2026-46538MedMay 27, 2026
    risk 0.38cvss 5.9epss 0.00

    Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO's constellation client tracks pending task responses by session_id only and does not verify that a TASK_END message came from the device that…

  • CVE-2025-35061MedOct 9, 2025
    risk 0.38cvss 5.9epss 0.00

    Newforma Info Exchange (NIX) '/NPCSRemoteWeb/LegacyIntegrationServices.asmx' allows a remote, unauthenticated attacker to cause NIX to make an SMB connection to an attacker-controlled system. The attacker can capture the NTLMv2 hash of the user-configured NIX service account.

  • CVE-2025-35058MedOct 9, 2025
    risk 0.38cvss 5.9epss 0.00

    Newforma Info Exchange (NIX) '/UserWeb/Common/MarkupServices.ashx' allows a remote, unauthenticated attacker to cause NIX to make an SMB connection to an attacker-controlled system. The attacker can capture the NTLMv2 hash of the customer-configured NIX service account.

  • CVE-2023-6374MedJan 30, 2024
    risk 0.38cvss 5.9epss 0.01

    Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric Corporation MELSEC WS Series WS0-GETH00200 all serial numbers allows a remote unauthenticated attacker to bypass authentication by capture-replay attack and illegally login to the affected module. As a…

  • CVE-2023-33621MedJun 13, 2023
    risk 0.38cvss 5.9epss 0.01

    GL.iNET GL-AR750S-Ext firmware v3.215 inserts the admin authentication token into a GET request when the OpenVPN Server config file is downloaded. The token is then left in the browser history or access logs, potentially allowing attackers to bypass authentication via session…

  • CVE-2022-43704MedJan 20, 2023
    risk 0.38cvss 5.9epss 0.02

    The Sinilink XY-WFT1 WiFi Remote Thermostat, running firmware 1.3.6, allows an attacker to bypass the intended requirement to communicate using MQTT. It is possible to replay Sinilink aka SINILINK521 protocol (udp/1024) commands interfacing directly with the target device. This,…

  • CVE-2021-22267MedFeb 9, 2021
    risk 0.38cvss 5.9epss 0.01

    Idelji Web ViewPoint Suite, as used in conjunction with HPE NonStop, allows a remote replay attack for T0320L01^ABP through T0320L01^ABZ, T0952L01^AAH through T0952L01^AAR, T0986L01 through T0986L01^AAF, T0665L01^AAP, and T0662L01^AAP (L) and T0320H01^ABO through T0320H01^ABY,…

  • CVE-2020-9438MedJun 23, 2020
    risk 0.38cvss 5.9epss 0.01

    Tinxy Door Lock with firmware before 3.2 allow attackers to unlock a door by replaying an Unlock request that occurred when the attacker was previously authorized. In other words, door-access revocation is mishandled.