Weakness (CWE)
CWE-296: Improper Following of a Certificate's Chain of Trust
The product does not follow, or incorrectly follows, the chain of trust for a certificate back to a trusted root certificate.
More detail
There are several ways in which the chain of trust might be broken, including but not limited to:
- Any certificate in the chain is self-signed, unless it is the root.
- Not every intermediate certificate is checked, starting from the original certificate all the way up to the root certificate.
- An intermediate, CA-signed certificate does not have the expected Basic Constraints or other important extensions.
- The root certificate has been compromised or authorized to the wrong party.
How to prevent it (3 mitigations)
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Architecture and Design
Ensure that proper certificate checking is included in the system design.
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Implementation
Understand, and properly implement all checks necessary to ensure the integrity of certificate trust integrity.
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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 full chain of trust.
Source: MITRE CWE-296
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High 8.4
Slate Digital Connect macOS XPC certificate validation privilege escalation
Slate Digital Connect 1.37.0 for macOS installs a privileged helper tool, com.slatedigital.connect.privileged.helper.tool, which exposes the XPC service com.slatedigital.connect.privileged.helper.tool2. The helper validates connecting XPC clients by checking …
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High 7.0
Non-CA certificate accepted as intermediate issuer in public_key path validation
Improper Following of a Certificate's Chain of Trust vulnerability in Erlang OTP public_key (pubkey_cert module) allows a non-CA certificate to be accepted as an intermediate issuer, enabling certificate chain forgery. In lib/public_key/src/pubkey_cert.erl, p…
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High 7.2
Authenticated Remote Code Execution via Arbitrary File Overwrite in the AOS-8 and AOS-10 Web-Based Management Interface
An authenticated remote code execution vulnerability exists in the AOS-8 and AOS-10 web-based management interface. A vulnerability in the certificate download functionality could allow an authenticated remote attacker to overwrite arbitrary files on the unde…
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High 8.1
Strimzi: All CAs from a custom CA chain consisting of multiple CAs are trusted for mTLS user autentication
Strimzi provides a way to run an Apache Kafka cluster on Kubernetes or OpenShift in various deployment configurations. In versions 0.49.0 through 0.50.0, when using a custom Cluster or Clients CA with a multistage CA chain consisting of multiple CAs, Strimzi …
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High 8.1
CrowdStrike Falcon Sensor for Linux TLS Issue
CrowdStrike uses industry-standard TLS (transport layer security) to secure communications from the Falcon sensor to the CrowdStrike cloud. CrowdStrike has identified a validation logic error in the Falcon sensor for Linux, Falcon Kubernetes Admission Control…
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High 7.7
Improper validation of the cloud certificate chain in Mobile Connect allows man-in-the-middle attack to impersonate the…
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High 7.4
Cisco Email Security Appliance and Cisco Web Security Appliance Certificate Validation Vulnerability
A vulnerability in the Cisco Advanced Malware Protection (AMP) for Endpoints integration of Cisco AsyncOS for Cisco Email Security Appliance (ESA) and Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to intercept traffic betw…
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High 7.5
Data Protection Central versions 1.0, 1.0.1, 18.1, 18.2, and 19.1 contains an Improper Certificate Chain of Trust Vulne…
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High 8.1
It was discovered evolution-ews before 3.31.3 does not check the validity of SSL certificates. An attacker could abuse …