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.
1128 vulnerabilities reference this CWE, most recent first.
CVE-2020-26290 (GCVE-0-2020-26290)
Vulnerability from cvelistv5 – Published: 2020-12-28 19:15 – Updated: 2024-08-04 15:56
VLAI
EPSS
VEX
Title
Critical security issues in XML encoding in Dex
Summary
Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references).
Severity
9.3 (Critical)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://github.com/mattermost/xml-roundtrip-valid… | x_refsource_MISC |
| https://mattermost.com/blog/coordinated-disclosur… | x_refsource_MISC |
| https://github.com/dexidp/dex/security/advisories… | x_refsource_CONFIRM |
| https://github.com/russellhaering/goxmldsig/secur… | x_refsource_MISC |
| https://github.com/dexidp/dex/commit/324b1c886b40… | x_refsource_MISC |
| https://github.com/dexidp/dex/releases/tag/v2.27.0 | x_refsource_MISC |
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CVE-2020-26244 (GCVE-0-2020-26244)
Vulnerability from cvelistv5 – Published: 2020-12-02 20:05 – Updated: 2024-08-04 15:56
VLAI
EPSS
VEX
Title
Cryptographic issues in Python oic
Summary
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 automatically, but only if the expected algorithm was passed in as a kwarg. 2) JWA `none` algorithm was allowed in all flows. 3) oic.consumer.Consumer.parse_authz returns an unverified IdToken. The verification of the token was left to the discretion of the implementator. 4) iat claim was not checked for sanity (i.e. it could be in the future). These issues are patched in version 1.2.1.
Severity
6.8 (Medium)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/OpenIDC/pyoidc/security/adviso… | x_refsource_CONFIRM |
| https://pypi.org/project/oic/ | x_refsource_MISC |
| https://github.com/OpenIDC/pyoidc/commit/62f8d753… | x_refsource_MISC |
| https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1 | x_refsource_MISC |
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CVE-2020-25166 (GCVE-0-2020-25166)
Vulnerability from cvelistv5 – Published: 2022-04-14 20:05 – Updated: 2025-04-16 16:29
VLAI
EPSS
VEX
Title
B. Braun SpaceCom, Battery Pack SP with Wi-Fi, and Data module compactplus
Summary
An improper verification of the cryptographic signature of firmware updates of the B. Braun Melsungen AG SpaceCom Version L81/U61 and earlier, and the Data module compactplus Versions A10 and A11 allows attackers to generate valid firmware updates with arbitrary content that can be used to tamper with devices.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.cisa.gov/uscert/ics/advisories/icsma-… | x_refsource_CONFIRM |
| https://www.bbraun.com/en/products-and-therapies/… | x_refsource_CONFIRM |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| B. Braun Melsungen AG | SpaceCom |
Affected:
unspecified , ≤ U61
(custom)
Affected: unspecified , ≤ L81 (custom) |
|
| B. Braun Melsungen AG | Battery pack with Wi-Fi |
Affected:
unspecified , ≤ U61
(custom)
Affected: unspecified , ≤ L81 (custom) |
|
| B. Braun Melsungen AG | Data module compactplus |
Affected:
A10
Affected: A11 |
Credits
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CVE-2020-24439 (GCVE-0-2020-24439)
Vulnerability from cvelistv5 – Published: 2020-11-05 19:32 – Updated: 2024-09-17 00:42
VLAI
EPSS
VEX
Title
Acrobat Reader DC for macOS Signature Validation Bypass
Summary
Acrobat Reader DC for macOS versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.30175 (and earlier) are affected by a security feature bypass. While the practical security impact is minimal, a defense-in-depth fix has been implemented to further harden the Adobe Reader update process.
Severity
CWE
- CWE-347 - Improper Verification of Cryptographic Signature (CWE-347)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
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|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 2017.011.30175
(custom)
Affected: unspecified , ≤ 2020.012.20048 (custom) Affected: unspecified , ≤ 2020.001.30005 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2020-11-03 00:00
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CVE-2020-24429 (GCVE-0-2020-24429)
Vulnerability from cvelistv5 – Published: 2020-11-05 19:31 – Updated: 2024-09-17 01:02
VLAI
EPSS
VEX
Title
Acrobat Reader DC for macOS Signature Verification Bypass Could Lead to Privilege Escalation
Summary
Acrobat Reader DC versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.30175 (and earlier) for macOS are affected by a signature verification bypass that could result in local privilege escalation. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.7 (High)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature (CWE-347)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 2017.011.30175
(custom)
Affected: unspecified , ≤ 2020.012.20048 (custom) Affected: unspecified , ≤ 2020.001.30005 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2020-11-03 00:00
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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
Credits
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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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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.