CWE-347
Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
CVE-2020-14515 (GCVE-0-2020-14515)
Vulnerability from cvelistv5 – Published: 2020-09-16 19:48 – Updated: 2024-08-04 12:46
VLAI
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-2020-15091 (GCVE-0-2020-15091)
Vulnerability from cvelistv5 – Published: 2020-07-02 17:05 – Updated: 2024-08-04 13:08
VLAI
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-2020-15093 (GCVE-0-2020-15093)
Vulnerability from cvelistv5 – Published: 2020-07-09 18:45 – Updated: 2024-08-04 13:08
VLAI
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-2020-15216 (GCVE-0-2020-15216)
Vulnerability from cvelistv5 – Published: 2020-09-29 16:00 – Updated: 2024-08-04 13:08
VLAI
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-2020-15240 (GCVE-0-2020-15240)
Vulnerability from cvelistv5 – Published: 2020-10-21 17:25 – Updated: 2024-08-04 13:08
VLAI
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-2020-15705 (GCVE-0-2020-15705)
Vulnerability from cvelistv5 – Published: 2020-07-29 17:45 – Updated: 2024-09-17 00:06
VLAI
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-2020-2021 (GCVE-0-2020-2021)
Vulnerability from cvelistv5 – Published: 2020-06-29 15:10 – Updated: 2025-10-21 23:35
VLAI
Title
PAN-OS: Authentication Bypass in SAML Authentication
Summary
When Security Assertion Markup Language (SAML) authentication is enabled and the 'Validate Identity Provider Certificate' option is disabled (unchecked), improper verification of signatures in PAN-OS SAML authentication enables an unauthenticated network-based attacker to access protected resources. The attacker must have network access to the vulnerable server to exploit this vulnerability. This issue affects PAN-OS 9.1 versions earlier than PAN-OS 9.1.3; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15, and all versions of PAN-OS 8.0 (EOL). This issue does not affect PAN-OS 7.1. This issue cannot be exploited if SAML is not used for authentication. This issue cannot be exploited if the 'Validate Identity Provider Certificate' option is enabled (checked) in the SAML Identity Provider Server Profile. Resources that can be protected by SAML-based single sign-on (SSO) authentication are: GlobalProtect Gateway, GlobalProtect Portal, GlobalProtect Clientless VPN, Authentication and Captive Portal, PAN-OS next-generation firewalls (PA-Series, VM-Series) and Panorama web interfaces, Prisma Access In the case of GlobalProtect Gateways, GlobalProtect Portal, Clientless VPN, Captive Portal, and Prisma Access, an unauthenticated attacker with network access to the affected servers can gain access to protected resources if allowed by configured authentication and Security policies. There is no impact on the integrity and availability of the gateway, portal or VPN server. An attacker cannot inspect or tamper with sessions of regular users. In the worst case, this is a critical severity vulnerability with a CVSS Base Score of 10.0 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N). In the case of PAN-OS and Panorama web interfaces, this issue allows an unauthenticated attacker with network access to the PAN-OS or Panorama web interfaces to log in as an administrator and perform administrative actions. In the worst-case scenario, this is a critical severity vulnerability with a CVSS Base Score of 10.0 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H). If the web interfaces are only accessible to a restricted management network, then the issue is lowered to a CVSS Base Score of 9.6 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H). Palo Alto Networks is not aware of any malicious attempts to exploit this vulnerability.
Severity
10 (Critical)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2020-2021 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | PAN-OS |
Unaffected:
7.1.*
Affected: 8.0.* Affected: 8.1 , < 8.1.15 (custom) Affected: 9.0 , < 9.0.9 (custom) Affected: 9.1 , < 9.1.3 (custom) |
Date Public
2020-06-29 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
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-2020-24439 (GCVE-0-2020-24439)
Vulnerability from cvelistv5 – Published: 2020-11-05 19:32 – Updated: 2024-09-17 00:42
VLAI
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
| 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-2020-25166 (GCVE-0-2020-25166)
Vulnerability from cvelistv5 – Published: 2022-04-14 20:05 – Updated: 2025-04-16 16:29
VLAI
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)
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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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.