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
-
Medium —
NATS TLS certificate common name validation bypass
The NATS official Rust clients are vulnerable to MitM when using TLS. A fix for the `nats` crate hasn't been released yet. Since the `nats` crate is going to be deprecated anyway, consider switching to `async-nats` `>= 0.29` which already fixed this vulnerabi…
-
Medium 5.9
russh may use insecure Diffie-Hellman keys
russh is a Rust SSH client and server library. Starting in version 0.34.0 and prior to versions 0.36.2 and 0.37.1, Diffie-Hellman key validation is insufficient, which can lead to insecure shared secrets and therefore breaks confidentiality. Connections betwe…
-
Medium 4.1
An improper verification of cryptographic signature vulnerability [CWE-347] in FortiWeb 6.4 all versions, 6.3.16 and be…
-
Medium 6.4
OpenZeppelin Contracts for Cairo is vulnerable to signature validation bypass
OpenZeppelin Contracts for Cairo is a library for secure smart contract development written in Cairo for StarkNet, a decentralized ZK Rollup. `is_valid_eth_signature` is missing a call to `finalize_keccak` after calling `verify_eth_signature`. As a result, an…
-
Medium 5.9
reason-jose ignores signature checks
reason-jose is a JOSE implementation in ReasonML and OCaml.`Jose.Jws.validate` does not check HS256 signatures. This allows tampering of JWS header and payload data if the service does not perform additional checks. Such tampering could expose applications us…
-
Medium 5.3
libgit2 fails to verify SSH keys by default
libgit2 is a cross-platform, linkable library implementation of Git. When using an SSH remote with the optional libssh2 backend, libgit2 does not perform certificate checking by default. Prior versions of libgit2 require the caller to set the `certificate_che…
-
Medium 5.3
Cargo did not verify SSH host keys
Cargo is a Rust package manager. The Rust Security Response WG was notified that Cargo did not perform SSH host key verification when cloning indexes and dependencies via SSH. An attacker could exploit this to perform man-in-the-middle (MITM) attacks. This vu…
-
Medium 5.3
Weak hash (SHA-1) in github.com/RobotsAndPencils/go-saml
XML Digital Signatures generated and validated using this package use SHA-1, which may allow an attacker to craft inputs which cause hash collisions depending on their control over the input.
-
Medium 6.4
jsonwebtoken vulnerable to signature validation bypass due to insecure default algorithm in jwt.verify()
In versions `<=8.5.1` of `jsonwebtoken` library, lack of algorithm definition in the `jwt.verify()` function can lead to signature validation bypass due to defaulting to the `none` algorithm for signature verification. Users are affected if you do not specify…
-
Medium 6.4
An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable Trusted Execution Environment (OP-T…
-
Medium 5.4
Light client verification not taking into account chain ID
Tendermint is a high-performance blockchain consensus engine for Byzantine fault tolerant applications. Versions prior to 0.28.0 contain a potential attack via Improper Verification of Cryptographic Signature, affecting anyone using the tendermint-light-clien…
-
Medium 5.5
An issue in code signature validation was addressed with improved checks. This issue is fixed in macOS Big Sur 11.7, ma…
-
Medium 6.1
Grafana plugin signature bypass vulnerability
Grafana is an open source observability and data visualization platform. Versions prior to 9.1.8 and 8.5.14 are vulnerable to a bypass in the plugin signature verification. An attacker can convince a server admin to download and successfully run a malicious p…
-
Medium 6.1
Cisco IOS XE Software for Catalyst 9200 Series Switches Arbitrary Code Execution Vulnerability
A vulnerability in the software image verification functionality of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. This vulnerability is due to an i…
-
Medium 6.5
An issue was discovered in D-Bus before 1.12.24, 1.13.x and 1.14.x before 1.14.4, and 1.15.x before 1.15.2. An authenti…
-
Medium 6.3
Digital Signature Hash Algorithms Not Validated in sylabs/sif
syslabs/sif is the Singularity Image Format (SIF) reference implementation. In versions prior to 2.8.1the `github.com/sylabs/sif/v2/pkg/integrity` package did not verify that the hash algorithm(s) used are cryptographically secure when verifying digital signa…
-
Medium 5.5
Vulnerabilities with blob verification in sigstore cosign
Cosign is a project under the sigstore organization which aims to make signatures invisible infrastructure. In versions prior to 1.12.0 a number of vulnerabilities have been found in cosign verify-blob, where Cosign would successfully verify an artifact when …
-
Medium 5.9
Emerson Electric's Proficy Machine Edition Version 9.00 and prior is vulenrable to CWE-347 Improper Verification of Cry…
-
Medium 6.8
2.2.1 IMPROPER VERIFICATION OF CRYPTOGRAPHIC SIGNATURE CWE-347
The tested version of Dominion Voting Systems ImageCast X does not validate application signatures to a trusted root certificate. Use of a trusted root certificate ensures software installed on a device is traceable to, or verifiable against, a cryptographic …
-
Medium 5.3
Improper Verification of Cryptographic Signature in `node-forge`
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.3.0, RSA PKCS#1 v1.5 signature verification code does not properly check `DigestInfo` for a proper ASN.1 structure. This can lead to succ…
-
Medium 4.8
Missing server signature validation in OctoberCMS
Octobercms is a self-hosted CMS platform based on the Laravel PHP Framework. Affected versions of OctoberCMS did not validate gateway server signatures. As a result non-authoritative gateway servers may be used to exfiltrate user private keys. Users are advis…
-
Medium —
Signatures are mistakenly recognized to be valid in jsrsasign
In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are mistakenly recognized to be valid. NOTE: there is no known practical attack.
-
Medium —
Signature verification failure in Tendermint
_The root cause of this security vulnerability is in the Tendermint specification, and this advisory is a duplicate of https://github.com/tendermint/spec/security/advisories/GHSA-jqfc-687g-59pw._ ### Impact Tendermint light clients running versions 0.34.0 to …
-
Medium 6.0
Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities
Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, l…
-
Medium 6.0
Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities
Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, l…
-
Medium 4.7
Cisco Expressway Series and TelePresence Video Communication Server Image Verification Vulnerability
A vulnerability in the image verification function of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute code with internal user privileges on the underlying operating syste…
-
Medium 5.3
Missing Cryptographic Step in star7th/showdoc
showdoc is vulnerable to Missing Cryptographic Step
-
Medium 6.5
Utils.readChallengeTx does not verify the server account signature
js-stellar-sdk is a Javascript library for communicating with a Stellar Horizon server. The `Utils.readChallengeTx` function used in SEP-10 Stellar Web Authentication states in its function documentation that it reads and validates the challenge transaction i…
-
Medium —
Improper Verification of Cryptographic Signature in aws-encryption-sdk-javascript
### Impact This advisory addresses several LOW severity issues with streaming signed messages and restricting processing of certain types of invalid messages. This ESDK supports a streaming mode where callers may stream the plaintext of signed messages before…
-
Medium —
Improper Verification of Cryptographic Signature in aws-encryption-sdk-cli
### Impact This advisory addresses several LOW severity issues with streaming signed messages and restricting processing of certain types of invalid messages. This ESDK supports a streaming mode where callers may stream the plaintext of signed messages before…
-
Medium —
Improper Verification of Cryptographic Signature in aws-encryption-sdk
### Impact This advisory addresses several LOW severity issues with streaming signed messages and restricting processing of certain types of invalid messages. This ESDK supports a streaming mode where callers may stream the plaintext of signed messages before…
-
Medium 5.9
BLS Signature "Malleability"
Lotus is an Implementation of the Filecoin protocol written in Go. BLS signature validation in lotus uses blst library method VerifyCompressed. This method accepts signatures in 2 forms: "serialized", and "compressed", meaning that BLS signatures can be provi…
-
Medium 6.7
Cisco IOS XE Software Fast Reload Vulnerabilities
Multiple vulnerabilities in the fast reload feature of Cisco IOS XE Software running on Cisco Catalyst 3850, Cisco Catalyst 9300, and Cisco Catalyst 9300L Series Switches could allow an authenticated, local attacker to either execute arbitrary code on the und…
-
Medium 6.7
Cisco IOS XE Software Fast Reload Vulnerabilities
Multiple vulnerabilities in the fast reload feature of Cisco IOS XE Software running on Cisco Catalyst 3850, Cisco Catalyst 9300, and Cisco Catalyst 9300L Series Switches could allow an authenticated, local attacker to either execute arbitrary code on the und…
-
Medium 6.8
Cisco IOS XE Software for the Catalyst 9000 Family Arbitrary Code Execution Vulnerability
A vulnerability in the software image verification functionality of Cisco IOS XE Software for the Cisco Catalyst 9000 Family of switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. The vulnerability is due t…
-
Medium 6.7
Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities
Multiple vulnerabilities in Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute …
-
Medium 6.7
Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities
Multiple vulnerabilities in Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute …
-
Medium 6.5
SAML XML Signature wrapping
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. All users of pysaml2 that need to validate signed SAML documents are impacted. The vulnerability is…
-
Medium 6.5CVE-2021-21239 Public exploit
Open default xmlsec1 key-type preference
PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. Users of pysaml2 that use the default CryptoBackendXmlSec1 backend and need to verify signed SAML d…
-
Medium 6.8
Cryptographic issues in Python oic
Python oic is a Python OpenID Connect implementation. In Python oic before version 1.2.1, there are several related cryptographic issues affecting client implementations that use the library. The issues are: 1) The IdToken signature algorithm was not checked …