Weakness (CWE)
CWE-347: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
Source: MITRE CWE-347
270 results · Clear filters · Feed
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Medium 6.5
Doco-CD has an OCI Trust Policy Bypass via Artifact-Contained Configuration
Doco-CD is a GitOps continuous delivery tool that automatically deploys and updates Docker Compose projects/services and Swarm stacks. Prior to version 0.90.1, a trust-boundary flaw in OCI artifact verification allowed artifact-provided deployment config to i…
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Medium 4.1
live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection mechanism when the .ve…
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Medium 5.6
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains…
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Medium 6.2
An issue was discovered in the mirage-crypto package before 2.2.0 for OCaml. The AES.GCM.authenticate_decrypt_into and …
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Medium 6.3
n8n: GitHub Trigger 422 Reuse Path Skips Webhook Secret Storage, Causing Signature Verification to Fail-Open
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the GitHub Trigger generated a webhook secret but discarded it when GitHub returned HTTP 422 and the node reused an existing webhook. Workflow static data then retained…
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Medium 6.6
An issue in OpenDDS 3.33.x allows a local attacker to cause a denial of service via the verify function in the SIgnedDo…
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Medium 6.3
TLS server impersonation possible in Mikrotik RouterOS
MikroTik RouterOS accepts malformed RSA/PKCS#1 v1.5 signatures across RSA-based services, including TLS/X.509 certificate validation and SSH host-key authentication. Because its trust store includes an e=3 root CA, an attacker controlling or redirecting an ou…
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Medium 5.9
Jwcrypto: jwcrypto: general json jws kid binding bypass during jwkset verification
A flaw was found in the jwcrypto library, which is used for implementing Javascript Object Signing and Encryption (JOSE) standards. The issue occurs when the library verifies a General JSON Serialization JWS using a set of keys. Due to a coding error, the lib…
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Medium —
AIIR verification and policy gates could report success without enforcing the control (fail-open)
### Summary Several of AIIR's verification and policy paths could return a success/"verified" result without actually enforcing the control they represent — they could **fail open** rather than fail closed. For a tool whose purpose is trustworthy verification…
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Medium 4.0
openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal
openssl_encrypt versions before 1.4.9 fail to authenticate recovery-slot presence in envelope-format encrypted files, allowing attackers to remove recovery slots without re-encrypting the payload. Attackers can modify the file header to delete recovery-slot f…
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Medium 5.8
Appwrite Templates github-issue-bot Skips Webhook Signature Verification When the X-Hub-Signature-256 Header Is Absent
The github-issue-bot templates in appwrite/templates verify the GitHub webhook signature with an inverted condition. verifyWebhook in node/github-issue-bot/src/github.js and in node-typescript/github-issue-bot/src/github.ts returns "typeof signature !== 'stri…
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Medium 6.8
The Ingenic T41, and probably also T32, T40, and A1 SoC boot ROMs parse and execute an attacker-controlled init table f…
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Medium 6.4
The Ingenic T31 SoC boot ROM flash-boot verification path compares only a single 32-bit word of the RSA signature outpu…
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Medium 4.8
Lemur : JWT verifier trusts attacker-supplied alg from token header — defense-in-depth gap; chain-dependent ATO with secret disclosure
Lemur manages TLS certificate creation. Prior to 1.9.2, the JWT verifier in lemur/auth/service.py:130-137 used fetch_token_header to read header_data["alg"] from an unverified token and passed that attacker-controlled value to decode_with_multiple_secrets. Py…
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Medium 5.9
Quay: stripe webhook accepts forged events without signature verification in quay
A flaw was found in Red Hat Quay's Stripe billing webhook handler. This vulnerability allows an unauthenticated attacker to forge billing events by sending crafted JSON requests to the `/webhooks/stripe` endpoint without validating the Stripe-Signature header…
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Medium 5.3
Windows Schannel Security Feature Bypass Vulnerability
Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to bypass a security feature over a network.
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Medium 5.9
Multiple vulnerabilities in SAP Business AI Platform (Approuter)
SAP Approuter does not consistently enforce integrity verification on certain session-related request headers under specific conditions. An attacker with low privileges could send a specially crafted request that bypasses the integrity check and loads another…
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Medium 4.4
Signature validation vulnerability affecting DigiDoc applications
Improper verification of cryptographic signature and Improper Check for Unusual or Exceptional Conditions vulnerability in Estonian Information System Authority (RIA) libdigidocpp, DigiDoc4, DigiDoc on Android, and DigiDoc on iOS. This issue affects libdigido…
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Medium 6.7
systemd-homed: local privilege escalation via missing home-record signature verification on the authenticate path
systemd-homed contains a local privilege escalation bug via arbitrary system group addition to a local, logged in, homed-managed user
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Medium 6.1
Cryptographic Flaw in WebAppInstalls in Google Chrome on Android prior to 151.0.7922.72 allowed a local attacker to pot…
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Medium 6.4
Autel MaxiCharger AC Elite Home Software Update Improper Verification of Cryptographic Signature Arbitrary Code Execution Vulnerability
Autel MaxiCharger AC Elite Home Software Update Improper Verification of Cryptographic Signature Arbitrary Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Autel MaxiCh…
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Medium 4.8
TOTP two-factor authentication bypass vulnerability
A TOTP two-factor authentication bypass vulnerability in Koollab LMS allowed an attacker to supply a client-controlled seed to generate a matching one-time password and bypass the second authentication factor, potentially enabling unauthorised access to admin…
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Medium 6.8
Incorrect acceptance of NSEC3 records
BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authenticated NXDOMAIN responses. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through …
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Medium 5.9
sigstore-go: Multi-log threshold bypass via single compromised log
sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLog(N>1) or WithSignedCertificateTimestamps(N>1) counts verified witnesses per entry or per validation path rather than per log autho…
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Medium 5.3
Janssen Project: JWE Request Object Signature Verification Bypass in jans-auth-server
The Janssen Project is an open-source identity and access management (IAM) platform. Prior to 2.0.0, jans-auth-server accepts unsigned JWE request objects because JwtAuthorizationRequest skips inner signature validation when jwe.getSignedJWTPayload() returns …
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Medium 5.4
sigstore-js: DSSE payloadType type-binding failure
sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 3.2.1, the preAuthEncoding function in @sigstore/core uses Node.js ascii encoding when converting the PAE string to bytes, allowing payloadType to be mutated after sign…
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Medium 6.3
Symfony: Mailomat Mailer Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.13 and 8.0.13, MailomatRequestParser::validateSignature() parsed X-MOM-Webhook-Signature as algo=signature and passed the request-selected algorithm…
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Medium 6.9
Symfony: Twilio Notifier Webhook Parser Never Verifies the X-Twilio-Signature HMAC: Unauthenticated Webhook Event Injection
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, TwilioRequestParser::doParse() received the configured webhook secret but ignored the X-Twilio-Signature HMAC header, allowi…
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Medium 6.9
Symfony: Mailtrap Mailer Webhook Parser Never Verifies the X-Mt-Signature HMAC — Unauthenticated Webhook Event Injection
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.12 and 8.0.12, MailtrapRequestParser::doParse() received the configured webhook secret but ignored the X-Mt-Signature HMAC header, allowing unauthen…
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Medium 5.3
CorvusPay WooCommerce Payment Gateway <= 2.7.4 - Unauthenticated Improper Verification of Cryptographic Signature to Payment Bypass via /wp-json/corvuspay/success/ REST Endpoint
The CorvusPay WooCommerce Payment Gateway plugin for WordPress is vulnerable to Payment Bypass via Improper Verification of Cryptographic Signature in all versions up to, and including, 2.7.4. The `corvuspay_success_handler` function registers the REST endpoi…
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Medium 5.9
CoreWCF: WS-Security signature substitution via document-wide Signature lookup
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 signature verification performs a document-wide ds:Signature lookup, allowing an unauthenticated remote attacker to pla…
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Medium 6.7
HCL Traveler for Microsoft Outlook (HTMO) is susceptible to an application modification vulnerability
The HCL Traveler for Microsoft Outlook libraries are being flagged as potentially malicious software or an unrecognized application.
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Medium 5.9
PKCS7_verify signer confusion allows forged signatures to be accepted
PKCS7_verify signer confusion allows forged signatures, where the signer associated with a signature is not correctly bound, permitting a forged signature to be accepted.
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Medium 6.0
PKCS#12 MAC verification uses attacker-controlled comparison length
PKCS#12 MAC verification uses an attacker-controlled comparison length, weakening the integrity check on the MAC and allowing a mismatched MAC to be accepted. The PKCS#12 verify path compared the locally computed HMAC against the MAC parsed from the PKCS#12 s…
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Medium 5.3
Mastodon: LD-Signature Bypass via JSON-LD Named-Graph Restructuring
Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain cla…
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Medium —
PHP JWT Framework: Chacha20Poly1305 key-encryption algorithm discards the Poly1305 authentication tag, performing no authentication on decryption
### Impact The experimental `Chacha20Poly1305` key-encryption algorithm generates the 16-byte Poly1305 authentication tag during `encryptKey()` but **discards it**: the tag is never written to the header and therefore never reaches the wire. On the receiving …
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Medium 6.5
WordPress Masteriyo - LMS plugin <= 2.1.8 - Broken Authentication vulnerability
Unauthenticated Broken Authentication in Masteriyo - LMS <= 2.1.8 versions.
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Medium 6.5
Apache CXF: WS JSON request filter trusts metadata from an unvalidated first signature entry
A vulnerability in Apache CXF's JwsJsonContainerRequestFilter can be exploited to cause CXF to process metadata that was not authenticated by the accepted signature. This can bypass the application's assumption that accepted `Content-Type` or protected HTTP-h…
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Medium 4.7
OP-TEE vulnerable to ECDH private key recovery
OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Prior to version 4.11.0, on many of the ECDH shared secret paths, the public key isn't verified t…
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Medium 5.4
PyJWT: Algorithm allow-list bypass when decoding with `PyJWK` / `PyJWKClient` keys
PyJWT is a JSON Web Token implementation in Python. From 2.9.0 to 2.12.1, there is a verifier-side algorithm allow-list bypass when jwt.decode() or jwt.decode_complete() are called with a PyJWK key. The token header alg is checked against the caller-supplied …