Filtered by CWE-347
Total 468 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2020-15091 1 Tendermint 1 Tendermint 2024-08-04 6.5 Medium
TenderMint from version 0.33.0 and before version 0.33.6 allows block proposers to include signatures for the wrong block. This may happen naturally if you start a network, have it run for some time and restart it (**without changing chainID**). A malicious block proposer (even with a minimal amount of stake) can use this vulnerability to completely halt the network. This issue is fixed in Tendermint 0.33.6 which checks all the signatures are for the block with 2/3+ majority before creating a commit.
CVE-2020-15093 1 Amazon 1 Tough 2024-08-04 8.6 High
The tough library (Rust/crates.io) prior to version 0.7.1 does not properly verify the threshold of cryptographic signatures. It allows an attacker to duplicate a valid signature in order to circumvent TUF requiring a minimum threshold of unique signatures before the metadata is considered valid. A fix is available in version 0.7.1. CVE-2020-6174 is assigned to the same vulnerability in the TUF reference implementation.
CVE-2020-14966 2 Jsrsasign Project, Netapp 2 Jsrsasign, Max Data 2024-08-04 7.5 High
An issue was discovered in the jsrsasign package through 8.0.18 for Node.js. It allows a malleability in ECDSA signatures by not checking overflows in the length of a sequence and '0' characters appended or prepended to an integer. The modified signatures are verified as valid. This could have a security-relevant impact if an application relied on a single canonical signature.
CVE-2020-14515 1 Wibu 1 Codemeter 2024-08-04 7.5 High
CodeMeter (All versions prior to 6.90 when using CmActLicense update files with CmActLicense Firm Code) has an issue in the license-file signature checking mechanism, which allows attackers to build arbitrary license files, including forging a valid license file as if it were a valid license file of an existing vendor. Only CmActLicense update files with CmActLicense Firm Code are affected.
CVE-2020-14365 2 Debian, Redhat 5 Debian Linux, Ansible Engine, Ansible Tower and 2 more 2024-08-04 7.1 High
A flaw was found in the Ansible Engine, in ansible-engine 2.8.x before 2.8.15 and ansible-engine 2.9.x before 2.9.13, when installing packages using the dnf module. GPG signatures are ignored during installation even when disable_gpg_check is set to False, which is the default behavior. This flaw leads to malicious packages being installed on the system and arbitrary code executed via package installation scripts. The highest threat from this vulnerability is to integrity and system availability.
CVE-2020-14199 1 Satoshilabs 4 Trezor Model T, Trezor Model T Firmware, Trezor One and 1 more 2024-08-04 6.5 Medium
BIP-143 in the Bitcoin protocol specification mishandles the signing of a Segwit transaction, which allows attackers to trick a user into making two signatures in certain cases, potentially leading to a huge transaction fee. NOTE: this affects all hardware wallets. It was fixed in 1.9.1 for the Trezor One and 2.3.1 for the Trezor Model T.
CVE-2020-14154 2 Canonical, Mutt 2 Ubuntu Linux, Mutt 2024-08-04 4.8 Medium
Mutt before 1.14.3 proceeds with a connection even if, in response to a GnuTLS certificate prompt, the user rejects an expired intermediate certificate.
CVE-2020-13895 1 P5-crypt-perl Project 1 P5-crypt-perl 2024-08-04 8.8 High
Crypt::Perl::ECDSA in the Crypt::Perl (aka p5-Crypt-Perl) module before 0.32 for Perl fails to verify correct ECDSA signatures when r and s are small and when s = 1. This happens when using the curve secp256r1 (prime256v1). This could conceivably have a security-relevant impact if an attacker wishes to use public r and s values when guessing whether signature verification will fail.
CVE-2020-13845 1 Sylabs 1 Singularity 2024-08-04 7.5 High
Sylabs Singularity 3.0 through 3.5 has Improper Validation of an Integrity Check Value. Image integrity is not validated when an ECL policy is enforced. The fingerprint required by the ECL is compared against the signature object descriptor(s) in the SIF file, rather than to a cryptographically validated signature.
CVE-2020-13810 1 Foxitsoftware 2 Phantompdf, Reader 2024-08-04 7.5 High
An issue was discovered in Foxit Reader and PhantomPDF before 9.7.2. It allows signature validation bypass via a modified file or a file with non-standard signatures.
CVE-2020-13803 1 Foxitsoftware 2 Phantompdf, Reader 2024-08-04 7.5 High
An issue was discovered in Foxit PhantomPDF Mac and Foxit Reader for Mac before 4.0. It allows signature validation bypass via a modified file or a file with non-standard signatures.
CVE-2020-13593 1 Ti 1 Simplelink-cc2640r2 Software Development Kit 2024-08-04 8.8 High
The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation in Texas Instruments SimpleLink SIMPLELINK-CC2640R2-SDK through 2.2.3 allows the Diffie-Hellman check during the Secure Connection pairing to be skipped if the Link Layer encryption setup is performed earlier. An attacker in radio range can achieve arbitrary read/write access to protected GATT service data, cause a denial of service, or possibly control a device's function by establishing an encrypted session with an unauthenticated Long Term Key (LTK).
CVE-2020-13415 1 Aviatrix 1 Controller 2024-08-04 7.5 High
An issue was discovered in Aviatrix Controller through 5.1. An attacker with any signed SAML assertion from the Identity Provider can establish a connection (even if that SAML assertion has expired or is from a user who is not authorized to access Aviatrix), aka XML Signature Wrapping.
CVE-2020-13101 1 Oasis-open 1 Oasis Digital Signature Services 2024-08-04 7.5 High
In OASIS Digital Signature Services (DSS) 1.0, an attacker can control the validation outcome (i.e., trigger either a valid or invalid outcome for a valid or invalid signature) via a crafted XML signature, when the InlineXML option is used. This defeats the expectation of non-repudiation.
CVE-2020-12692 3 Canonical, Openstack, Redhat 3 Ubuntu Linux, Keystone, Openstack 2024-08-04 5.4 Medium
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
CVE-2020-12676 1 Fusionauth 1 Samlv2 2024-08-04 9.1 Critical
FusionAuth fusionauth-samlv2 0.2.3 allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack".
CVE-2020-12607 1 Fastecdsa Project 1 Fastecdsa 2024-08-04 7.5 High
An issue was discovered in fastecdsa before 2.1.2. When using the NIST P-256 curve in the ECDSA implementation, the point at infinity is mishandled. This means that for an extreme value in k and s^-1, the signature verification fails even if the signature is correct. This behavior is not solely a usability problem. There are some threat models where an attacker can benefit by successfully guessing users for whom signature verification will fail.
CVE-2020-12244 4 Debian, Fedoraproject, Opensuse and 1 more 5 Debian Linux, Fedora, Backports Sle and 2 more 2024-08-04 7.5 High
An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.
CVE-2020-12046 1 Opto22 1 Softpac Project 2024-08-04 5.7 Medium
Opto 22 SoftPAC Project Version 9.6 and prior. SoftPAC’s firmware files’ signatures are not verified upon firmware update. This allows an attacker to replace legitimate firmware files with malicious files.
CVE-2020-12042 1 Opto22 1 Softpac Project 2024-08-04 6.5 Medium
Opto 22 SoftPAC Project Version 9.6 and prior. Paths specified within the zip files used to update the SoftPAC firmware are not sanitized. As a result, an attacker with user privileges can gain arbitrary file write access with system access.