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Common Weakness Enumeration

CWE-295

Allowed

Improper Certificate Validation

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product does not validate, or incorrectly validates, a certificate.

2045 vulnerabilities reference this CWE, most recent first.

CVE-2021-3698 (GCVE-0-2021-3698)

Vulnerability from cvelistv5 – Published: 2022-03-08 14:07 – Updated: 2024-08-03 17:01
VLAI
Summary
A flaw was found in Cockpit in versions prior to 260 in the way it handles the certificate verification performed by the System Security Services Daemon (SSSD). This flaw allows client certificates to authenticate successfully, regardless of the Certificate Revocation List (CRL) configuration or the certificate status. The highest threat from this vulnerability is to confidentiality.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a cockpit Affected: cockpit versions prior to 260
Show details on NVD website
To clipboard 

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CVE-2021-3636 (GCVE-0-2021-3636)

Vulnerability from cvelistv5 – Published: 2021-07-30 19:27 – Updated: 2024-08-03 17:01
VLAI
Summary
It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a openshift Affected: openshift 4.8
Show details on NVD website
To clipboard 

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CVE-2021-3618 (GCVE-0-2021-3618)

Vulnerability from cvelistv5 – Published: 2022-03-23 00:00 – Updated: 2024-08-03 17:01
VLAI
Summary
ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a ALPACA Affected: vsftpd 3.0.4, nginx 1.21.0, sendmail 8.17
Show details on NVD website
To clipboard 

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CVE-2021-3460 (GCVE-0-2021-3460)

Vulnerability from cvelistv5 – Published: 2021-04-13 20:41 – Updated: 2024-08-03 16:53
VLAI
Summary
The Motorola MH702x devices, prior to version 2.0.0.301, do not properly verify the server certificate during communication with the support server which could lead to the communication channel being accessible by an attacker.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version
Motorola MH702x Affected: unspecified , < 2.0.0.301 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-1354 (GCVE-0-2021-1354)

Vulnerability from cvelistv5 – Published: 2021-02-04 16:40 – Updated: 2024-11-08 23:52
VLAI
Title
Cisco Unified Computing System Central Software Improper Certificate Validation Vulnerability
Summary
A vulnerability in the certificate registration process of Cisco Unified Computing System (UCS) Central Software could allow an authenticated, adjacent attacker to register a rogue Cisco Unified Computing System Manager (UCSM). This vulnerability is due to improper certificate validation. An attacker could exploit this vulnerability by sending a crafted HTTP request to the registration API. A successful exploit could allow the attacker to register a rogue Cisco UCSM and gain access to Cisco UCS Central Software data and Cisco UCSM inventory data.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-08 20:49 UTC
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Date Public
2021-02-03 00:00
Show details on NVD website
To clipboard 

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CVE-2021-1277 (GCVE-0-2021-1277)

Vulnerability from cvelistv5 – Published: 2021-01-20 19:56 – Updated: 2024-11-12 20:25
VLAI
Title
Cisco Data Center Network Manager Certificate Validation Vulnerabilities
Summary
Multiple vulnerabilities in Cisco Data Center Network Manager (DCNM) could allow an attacker to spoof a trusted host or construct a man-in-the-middle attack to extract sensitive information or alter certain API requests. These vulnerabilities are due to insufficient certificate validation when establishing HTTPS requests with the affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-08 20:05 UTC
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Date Public
2021-01-20 00:00
Show details on NVD website
To clipboard 

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CVE-2021-1276 (GCVE-0-2021-1276)

Vulnerability from cvelistv5 – Published: 2021-01-20 19:56 – Updated: 2024-11-12 20:24
VLAI
Title
Cisco Data Center Network Manager Certificate Validation Vulnerabilities
Summary
Multiple vulnerabilities in Cisco Data Center Network Manager (DCNM) could allow an attacker to spoof a trusted host or construct a man-in-the-middle attack to extract sensitive information or alter certain API requests. These vulnerabilities are due to insufficient certificate validation when establishing HTTPS requests with the affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-08 20:05 UTC
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Date Public
2021-01-20 00:00
Show details on NVD website
To clipboard 

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CVE-2021-1134 (GCVE-0-2021-1134)

Vulnerability from cvelistv5 – Published: 2021-06-29 03:05 – Updated: 2024-11-07 22:07
VLAI
Title
Cisco DNA Center Certificate Validation Vulnerability
Summary
A vulnerability in the Cisco Identity Services Engine (ISE) integration feature of the Cisco DNA Center Software could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data. The vulnerability is due to an incomplete validation of the X.509 certificate used when establishing a connection between DNA Center and an ISE server. An attacker could exploit this vulnerability by supplying a crafted certificate and could then intercept communications between the ISE and DNA Center. A successful exploit could allow the attacker to view and alter sensitive information that the ISE maintains about clients that are connected to the network.
Severity
7.4 (High)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-07 21:43 UTC
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Date Public
2021-06-16 00:00
Show details on NVD website
To clipboard 

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CVE-2020-29504 (GCVE-0-2020-29504)

Vulnerability from cvelistv5 – Published: 2024-02-02 15:58 – Updated: 2024-08-04 16:55
VLAI
Summary
Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.5.2, contain a Missing Required Cryptographic Step Vulnerability.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-05 15:55 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Date Public
2019-09-11 06:30
Show details on NVD website
To clipboard 

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CVE-2020-27649 (GCVE-0-2020-27649)

Vulnerability from cvelistv5 – Published: 2020-10-29 08:55 – Updated: 2024-09-16 17:18
VLAI
Summary
Improper certificate validation vulnerability in OpenVPN client in Synology Router Manager (SRM) before 1.2.4-8081 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
Severity
8.3 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version
Synology Synology Router Manager (SRM) Affected: unspecified , < 1.2.4-8081 (custom)
Create a notification for this product.
Date Public
2020-10-29 00:00
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design Implementation

Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.

Mitigation
Implementation

If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.

CAPEC-459: Creating a Rogue Certification Authority Certificate

An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.

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.

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