Weakness (CWE)
CWE-295: Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.
How to prevent it (2 mitigations)
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Architecture and Design, Implementation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
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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 hostname.
Source: MITRE CWE-295
479 results · Clear filters · Feed
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Medium 5.9
TS4500 CLI tool addresses security vulnerability
IBM TS4500 CLI tool Versions: 0.1.31 through 1.12.0.0 does not validate or improperly validates TLS certificate validation, which could allow an attacker to obtain sensitive information using man in the middle techniques.
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Medium 5.3
Dulwich through 1.1.0 was found to be missing SSH host key verification in contrib/paramiko_vendor.py.
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Medium 4.2
Windows Cryptographic Services Security Feature Bypass Vulnerability
Improper certificate validation in Windows Cryptographic Services allows an unauthorized attacker to bypass a security feature over a network.
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Medium 6.7
A improper certificate validation vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 th…
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Medium —
Apple App Store Server Python Library: SignedDataVerifier accepts stale OCSP GOOD responses and can bypass certificate revocation checks
### Summary `SignedDataVerifier` attempts to perform online revocation checking when `enable_online_checks=True`, but its OCSP validation logic accepts stale `GOOD` responses as valid indefinitely. In `appstoreserverlibrary/signed_data_verifier.py`, `_ChainVe…
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Medium 5.7
Prisma Access Agent: Improper Certificate Validation on iOS
An improper certificate validation vulnerability in the Prisma® Access Agent for iOS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic. The Prisma Access Agent on Windows, macOS, Linux, Android and ChromeOS are not affe…
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Medium 6.5
etcd: gRPC client listener does not enforce `--client-crl-file` certificate revocation
etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate R…
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Medium 4.3
Connection possible to the Administration portal with a revoked certificate
A vulnerability was discovered on Stormshield Network Security 4.3.0 to 4.3.41 (included), 4.4.0 to 4.8.15 (included) , 5.0.2 EA to 5.0.5 (included) A revoked client certificate can still be used to authenticate to the captive‑admin portal, allowing an attac…
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Medium 6.4
Improper XPC caller certificate validation and TOCTOU race condition in macOS PrivilegedHelperTool
Improper certificate validation and a time-of-check time-of-use (TOCTOU) race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed cert…
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Medium 4.3
A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation. This vulnerability af…
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Medium 5.7
iPAddress name constraints not enforced when WOLFSSL_IP_ALT_NAME is undefined
iPAddress name constraints bypass when WOLFSSL_IP_ALT_NAME is not defined. IP address name constraints are not enforced in that configuration, allowing a certificate to bypass an issuing CA's IP address constraints.
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Medium 6.3
OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status
OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status allows a same-issuer SingleResponse whose serial is a prefix of the target serial to be reported as the revocation status of a different certificate. The lookup compared serial-number…
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Medium 6.0
X.509 name constraint bypass via Subject CN treated as a DNS name
X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name. A certificate whose Subject CN violates an issuing CA's DNS name constraints could be accepted.
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Medium 6.3
Wildcard DNS SAN bypasses CA name-constraint checks
Certificates with wildcard DNS SANs (e.g. *.example.com) bypassed CA name-constraint checks. A certificate with a wildcard DNS SAN that should be rejected by the issuing CA's permitted/excluded DNS name constraints could be accepted.
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Medium 6.3
Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA (temporary CA exemption)
Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA. Intermediate CA certificates are required to have the keyCertSign key usage when a Key Usage extension is present, but chain-supplied temporary CAs (WOLFSSL_TEMP_CA) added while building…
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Medium 6.0
Partial-chain verification accepts untrusted intermediate as trust anchor
Partial-chain certificate verification may accept chains that terminate at a peer-supplied, untrusted intermediate certificate rather than a trusted anchor. An attacker could present a chain that ends at an intermediate they control and have it accepted as va…
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Medium 4.8
Jenkins Bitbucket Push and Pull Request Plugin unconditionally disables SSL/TLS certificate validation
Jenkins Bitbucket Push and Pull Request Plugin 3.3.8 and earlier unconditionally disables SSL/TLS certificate and hostname validation for connections sending Bearer token authenticated requests to the configured Bitbucket Server endpoint, allowing attackers a…
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Medium 5.9
Daytona: Git credential leak via git clone with TLS verification disabled
Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. Prior to 0.185.0, the daemon's git clone implementation disabled TLS certificate verification. When a clone request carried Git credentials, the daemon…
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Medium 6.0
Multiple vulnerabilities affect IBM Db2® on Cloud Pak for Data, and Db2 Warehouse on Cloud Pak for Data.
IBM Db2 on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data versions 4.8, 5.0, 5.1, 5.2, 5.3 could allow a privileged user to perform operations and obtain sensitive information outside of their authority due to improper token validation.
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Medium 6.5
Dell PowerFlex Manager, versions prior to 4.5.1.1, contain an improper certificate validation vulnerability. A remote u…
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Medium 6.5
Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier
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Medium 6.5
Improper validation of SSH host keys in Canon EOS Network Setting Tool Version 1.5.0 or earlier
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Medium 5.0
Mail Auto-Configuration Does Not Enable SSL Hostname Verification
Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected. Affected versions: Spring Boot 4.0.0 th…
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Medium 4.0
In Spring AMQP the RabbitConnectionFactoryBean.setUri("amqps://...") bypasses secure SSL setup, uses TrustEverythingTrustManager
Applications that configure their broker connection via RabbitConnectionFactoryBean.setUri("amqps://...") without also calling setUseSSL(true) get TLS encryption with no certificate validation and no hostname verification. Affected versions: Spring AMQP 4.0.0…
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Medium 5.3
Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate
Issue Summary: An error in the callback used to verify the certificate provided in a Root CA key update Certificate Management Protocol (CMP) message response rendered the certificate validation ineffectual, which could lead to escalation of credentials from …
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Medium 5.9
Apache Airflow: No certificate validation on SMTP STARTTLS connections
Apache Airflow's EmailOperator and the underlying `airflow.utils.email` helpers established SMTP STARTTLS connections without verifying the remote certificate when the deployment used `[email] smtp_starttls=True` without `[email] smtp_ssl`. An attacker positi…
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Medium 6.3
OCSP responder certificate validity period not checked in public_key
Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_ocsp module) allows forged OCSP responses signed with an expired responder certificate to be accepted as valid. OCSP response verification in pubkey_ocsp:verify_response/5 and pubk…
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Medium 6.5
OpenTelemetry.Exporter.Instana bypasses TLS certificate validation when a proxy is configured
The OpenTelemetry.Exporter.Instana exports telemetry to Instana backend. Prior to 1.1.0, the OpenTelemetry.Exporter.Instana NuGet package does not validate HTTPS/TLS certificates are valid when sending telemetry to a configured Instana back-end when a proxy i…
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Medium 4.2
Dell PowerFlex Manager, version(s) <=4.6.2, contain(s) an Improper Certificate Validation vulnerability. An unauthentic…
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Medium 6.3
Invoking bypass of certificate restrictions in golang.org/x/crypto/ssh
When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil…
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Medium 5.3
Invoking server panic during CheckHostKey/Authenticate in golang.org/x/crypto/ssh
SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.
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Medium 5.9
Open ISES Tickets < 3.44.2 Disabled TLS Certificate Verification in rm/incs/mobile_login.inc.php
Open ISES Tickets before 3.44.2 disables TLS certificate verification in rm/incs/mobile_login.inc.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests issued during the mobile (RouteMate)…
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Medium 5.9
Open ISES Tickets < 3.44.2 Disabled TLS Certificate Verification in incs/login.inc.php
Open ISES Tickets before 3.44.2 disables TLS certificate verification in incs/login.inc.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests issued during the login/authentication flow. A…
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Medium 5.9
Open ISES Tickets < 3.44.2 Disabled TLS Certificate Verification in incs/functions.inc.php
Open ISES Tickets before 3.44.2 disables TLS certificate verification in incs/functions.inc.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests for general-purpose outbound HTTPS request…
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Medium 5.9
Open ISES Tickets < 3.44.2 Disabled TLS Certificate Verification in ajax/reports.php
Open ISES Tickets before 3.44.2 disables TLS certificate verification in ajax/reports.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests for Google Maps Directions API lookups during in…
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Medium 6.8
Dell Live Optics Windows and Personal Edition collectors contain an improper certificate validation vulnerability. A re…
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Medium 5.3
gitsign verify accepts signatures over go-git-normalized bytes, enabling trust confusion on malformed commits
Gitsign is a keyless Sigstore to signing tool for Git commits with your a GitHub / OIDC identity. Prior to 0.16.0, gitsign verify and gitsign verify-tag re-encode commit/tag objects through go-git's EncodeWithoutSignature before checking the signature, instea…
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Medium 5.8
css_parser allows to MITM included https css urls
css_parser is a Ruby CSS parser. Prior to 2.1.0 and 1.22.0, the CSS Parser gem does not validate HTTPS connections, allowing a Man-in-the-Middle (MITM) attacker to inject or modify CSS content when stylesheets are loaded via HTTPS. The connection is establish…
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Medium 5.8
Unsafe remote resource fetching in expansion misp-modules
MISP modules are autonomous modules that can be used to extend MISP for new services. Prior to 3.0.7, an unsafe remote resource fetching vulnerability existed in MISP Modules expansion modules. The html_to_markdown module accepted arbitrary HTTP(S) URLs witho…
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Medium 6.2
Prisma Access Agent: Improper Certificate Validation Vulnerability
An improper certificate validation vulnerability in the Prisma Access Agent® for Android and Chrome OS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic. By presenting a certificate for any domain issued by a trusted Ce…