Common Weakness Enumeration
CWE-347
AllowedImproper Verification of Cryptographic Signature
Abstraction: Base · Status: Draft
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
1483 vulnerabilities reference this CWE, most recent first.
CVE-2020-15705 (GCVE-0-2020-15705)
Vulnerability from cvelistv5 – Published: 2020-07-29 17:45 – Updated: 2024-09-17 00:06
VLAI
EPSS
VEX
Title
GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim
Summary
GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.
Severity
6.4 (Medium)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
20 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ubuntu | grub2 in Ubuntu |
Affected:
20.04 LTS , < 2.04-1ubuntu26.1
(custom)
Affected: 18.04 LTS , < 2.02-2ubuntu8.16 (custom) Affected: 16.04 LTS , < 2.02~beta2-36ubuntu3.26 (custom) Affected: 14.04 ESM , < 2.02~beta2-9ubuntu1.20 (custom) |
Date Public
2020-07-29 00:00
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CVE-2020-15240 (GCVE-0-2020-15240)
Vulnerability from cvelistv5 – Published: 2020-10-21 17:25 – Updated: 2024-08-04 13:08
VLAI
EPSS
VEX
Title
Regression in JWT Signature Validation
Summary
omniauth-auth0 (rubygems) versions >= 2.3.0 and < 2.4.1 improperly validate the JWT token signature when using the `jwt_validator.verify` method. Improper validation of the JWT token signature can allow an attacker to bypass authentication and authorization. You are affected by this vulnerability if all of the following conditions apply: 1. You are using `omniauth-auth0`. 2. You are using `JWTValidator.verify` method directly OR you are not authenticating using the SDK’s default Authorization Code Flow. The issue is patched in version 2.4.1.
Severity
7.4 (High)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/auth0/omniauth-auth0/security/… | x_refsource_CONFIRM |
| https://github.com/auth0/omniauth-auth0/commit/fd… | x_refsource_MISC |
| https://rubygems.org/gems/omniauth-auth0 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| auth0 | omniauth-auth0 |
Affected:
>= 2.3.0, <2.4.1
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CVE-2020-15216 (GCVE-0-2020-15216)
Vulnerability from cvelistv5 – Published: 2020-09-29 16:00 – Updated: 2024-08-04 13:08
VLAI
EPSS
VEX
Title
Signature Validation Bypass in goxmldsig
Summary
In goxmldsig (XML Digital Signatures implemented in pure Go) before version 1.1.0, with a carefully crafted XML file, an attacker can completely bypass signature validation and pass off an altered file as a signed one. A patch is available, all users of goxmldsig should upgrade to at least revision f6188febf0c29d7ffe26a0436212b19cb9615e64 or version 1.1.0
Severity
5.3 (Medium)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/russellhaering/goxmldsig/secur… | x_refsource_CONFIRM |
| https://github.com/russellhaering/goxmldsig/commi… | x_refsource_MISC |
| https://pkg.go.dev/github.com/russellhaering/goxm… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| russellhaering | goxmldsig |
Affected:
< 1.1.0
|
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CVE-2020-15093 (GCVE-0-2020-15093)
Vulnerability from cvelistv5 – Published: 2020-07-09 18:45 – Updated: 2024-08-04 13:08
VLAI
EPSS
VEX
Title
Improper verification of signature threshold in tough
Summary
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.
Severity
8.6 (High)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/awslabs/tough/security/advisor… | x_refsource_CONFIRM |
| https://crates.io/crates/tough | x_refsource_MISC |
| https://github.com/theupdateframework/tuf/pull/974 | x_refsource_MISC |
| https://github.com/theupdateframework/tuf/commit/… | x_refsource_MISC |
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CVE-2020-15091 (GCVE-0-2020-15091)
Vulnerability from cvelistv5 – Published: 2020-07-02 17:05 – Updated: 2024-08-04 13:08
VLAI
EPSS
VEX
Title
Denial of Service in TenderMint
Summary
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.
Severity
6.5 (Medium)
CWE
- CWE-347 - {"CWE-347":"Improper Verification of Cryptographic Signature"}
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/tendermint/tendermint/security… | x_refsource_CONFIRM |
| https://github.com/tendermint/tendermint/issues/4926 | x_refsource_MISC |
| https://github.com/tendermint/tendermint/commit/4… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tendermint | tendermint |
Affected:
>= 0.33.0, < 0.33.6
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CVE-2020-14515 (GCVE-0-2020-14515)
Vulnerability from cvelistv5 – Published: 2020-09-16 19:48 – Updated: 2024-08-04 12:46
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- CWE-347 - IMPROPER VERIFICATION OF CRYPTOGRAPHIC SIGNATURE CWE-347
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-20-203-01 | x_refsource_MISC |
Impacted products
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CVE-2020-14365 (GCVE-0-2020-14365)
Vulnerability from cvelistv5 – Published: 2020-09-23 12:25 – Updated: 2024-08-04 12:46
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1869154 | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4950 | vendor-advisoryx_refsource_DEBIAN |
Impacted products
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CVE-2020-12046 (GCVE-0-2020-12046)
Vulnerability from cvelistv5 – Published: 2020-05-14 20:30 – Updated: 2024-08-04 11:48
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- CWE-347 - IMPROPER VERIFICATION OF CRYPTOGRAPHIC SIGNATURE CWE-347
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.us-cert.gov/ics/advisories/icsa-20-135-01 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Opto 22 SoftPAC Project |
Affected:
SoftPAC Project Version 9.6 and prior
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CVE-2020-12042 (GCVE-0-2020-12042)
Vulnerability from cvelistv5 – Published: 2020-05-14 20:28 – Updated: 2024-08-04 11:48
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- CWE-347 - IMPROPER VERIFICATION OF CRYPTOGRAPHIC SIGNATURE CWE-347
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.us-cert.gov/ics/advisories/icsa-20-135-01 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Opto 22 SoftPAC Project |
Affected:
SoftPAC Project Version 9.6 and prior
|
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CVE-2020-11093 (GCVE-0-2020-11093)
Vulnerability from cvelistv5 – Published: 2020-12-24 20:05 – Updated: 2024-08-04 11:21
VLAI
EPSS
VEX
Title
Authorization bypass in Hyperledger Indy
Summary
Hyperledger Indy Node is the server portion of a distributed ledger purpose-built for decentralized identity. In Hyperledger Indy before version 1.12.4, there is lack of signature verification on a specific transaction which enables an attacker to make certain unauthorized alterations to the ledger. Updating a DID with a nym transaction will be written to the ledger if neither ROLE or VERKEY are being changed, regardless of sender. A malicious DID with no particular role can ask an update for another DID (but cannot modify its verkey or role). This is bad because 1) Any DID can write a nym transaction to the ledger (i.e., any DID can spam the ledger with nym transactions), 2) Any DID can change any other DID's alias, 3) The update transaction modifies the ledger metadata associated with a DID.
Severity
7.5 (High)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/hyperledger/indy-node/security… | x_refsource_CONFIRM |
| https://github.com/hyperledger/indy-node/blob/mas… | x_refsource_MISC |
| https://github.com/hyperledger/indy-node/blob/mas… | x_refsource_MISC |
| https://github.com/hyperledger/indy-node/commit/5… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| hyperledger | indy-node |
Affected:
< 1.12.4
|
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No mitigation information available for this CWE.
CAPEC-463: Padding Oracle Crypto Attack
An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.