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
373 results · Clear filters · Feed
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High 8.8
Matrix Synapse Improper Signature Validation
Matrix Synapse before 0.33.3.1 allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
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High 7.5
Wizkunde SAMLBase SAML Bypass
Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially by…
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High 7.5
In Bouncy Castle JCE Provider ECDSA does not fully validate ASN.1 encoding of signature on verification
In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cas…
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High 7.5
In Bouncy Castle JCE Provider it is possible to inject extra elements in the sequence making up the signature and still have it validate
In Bouncy Castle JCE Provider version 1.55 and earlier the DSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases…
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High 7.5
Docker Notary Signature Algorithm Not Matched to Key vulnerability
In Docker Notary before 0.1, gotuf/signed/verify.go has a Signature Algorithm Not Matched to Key vulnerability. Because an attacker controls the field specifying the signature algorithm, they might (for example) be able to forge a signature by forcing a misin…
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High 8.1
SimpleSAMLphp saml2 incorrect signature validation
HTTPRedirect.php in the saml2 library in SimpleSAMLphp before 1.15.4 has an incorrect check of return values in the signature validation utilities, allowing an attacker to get invalid signatures accepted as valid by forcing an error during validation. This oc…
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High 7.5
SimpleSAMLphp Improper Verification of Cryptographic Signature
The XmlSecLibs library as used in the saml2 library in SimpleSAMLphp before 1.15.3 incorrectly verifies signatures on SAML assertions, allowing a remote attacker to construct a crafted SAML assertion on behalf of an Identity Provider that would pass as crypto…
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High 8.1
SimpleSAMLphp Signature validation bypass
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at l…
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High 7.5
Cisco node-jose improper validation of JWT signature
A vulnerability in the Cisco node-jose open source library before 0.11.0 could allow an unauthenticated, remote attacker to re-sign tokens using a key that is embedded within the token. The vulnerability is due to node-jose following the JSON Web Signature (J…
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High 7.5
Samlify vulnerable to Authentication Bypass by allowing tokens to be reused with different usernames
An XML Signature Wrapping vulnerability exists in Samlify 2.2.0 and earlier, and in predecessor Express-saml2 which could allow attackers to impersonate arbitrary users.
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High 7.5
Improper Verification of Cryptographic Signature in Nimbus JOSE+JWT
Nimbus JOSE+JWT before 4.36 proceeds with ECKey construction without ensuring that the public x and y coordinates are on the specified curve, which allows attackers to conduct an Invalid Curve Attack in environments where the JCE provider lacks the applicable…
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High 7.5
SimpleGeo python-oauth2 does not check the nonce allowing replay attacks
The Server.verify_request function in SimpleGeo python-oauth2 does not check the nonce, which allows remote attackers to perform replay attacks via a signed URL.
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High 7.8
ChaiVM EZloader for HP color LaserJet 4500 and 4550 and HP LaserJet 4100 and 8150 does not properly verify JAR signatur…