Common Weakness Enumeration
CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
2146 vulnerabilities reference this CWE, most recent first.
CVE-2021-44531 (GCVE-0-2021-44531)
Vulnerability from cvelistv5 – Published: 2022-02-24 18:27 – Updated: 2025-04-30 22:24
VLAI
EPSS
VEX
Summary
Accepting arbitrary Subject Alternative Name (SAN) types, unless a PKI is specifically defined to use a particular SAN type, can result in bypassing name-constrained intermediates. Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 was accepting URI SAN types, which PKIs are often not defined to use. Additionally, when a protocol allows URI SANs, Node.js did not match the URI correctly.Versions of Node.js with the fix for this disable the URI SAN type when checking a certificate against a hostname. This behavior can be reverted through the --security-revert command-line option.
Severity
No CVSS data available.
CWE
- CWE-295 - Improper Certificate Validation (CWE-295)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://hackerone.com/reports/1429694 | x_refsource_MISC |
| https://nodejs.org/en/blog/vulnerability/jan-2022… | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022032… | x_refsource_CONFIRM |
| https://www.debian.org/security/2022/dsa-5170 | vendor-advisoryx_refsource_DEBIAN |
| https://www.oracle.com/security-alerts/cpujul2022.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NodeJS | Node |
Affected:
4.0 , < 4.*
(semver)
Affected: 5.0 , < 5.* (semver) Affected: 6.0 , < 6.* (semver) Affected: 7.0 , < 7.* (semver) Affected: 8.0 , < 8.* (semver) Affected: 9.0 , < 9.* (semver) Affected: 10.0 , < 10.* (semver) Affected: 11.0 , < 11.* (semver) Affected: 12.0 , < 12.22.9 (semver) Affected: 13.0 , < 13.* (semver) Affected: 14.0 , < 14.18.3 (semver) Affected: 15.0 , < 15.* (semver) Affected: 16.0 , < 16.13.2 (semver) Affected: 17.0 , < 17.3.1 (semver) |
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CVE-2021-42027 (GCVE-0-2021-42027)
Vulnerability from cvelistv5 – Published: 2021-12-14 12:06 – Updated: 2024-08-04 03:22
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in SINUMERIK Edge (All versions < V3.2). The affected software does not properly validate the server certificate when initiating a TLS connection. This could allow an attacker to spoof a trusted entity by interfering in the communication path between the client and the intended server.
Severity
No CVSS data available.
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | SINUMERIK Edge |
Affected:
All versions < V3.2
|
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CVE-2021-40713 (GCVE-0-2021-40713)
Vulnerability from cvelistv5 – Published: 2021-09-27 15:43 – Updated: 2025-04-23 19:27
VLAI
EPSS
VEX
Title
Adobe Experience Manager Improper Certificate Validation Could Lead to Man In The Middle Attack
Summary
Adobe Experience Manager version 6.5.9.0 (and earlier) is affected by a improper certificate validation vulnerability in the cold storage component. If an attacker can achieve a man in the middle when the cold server establishes a new certificate, they would be able to harvest sensitive information.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:11 UTC
CWE
- CWE-295 - Improper Certificate Validation (CWE-295)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/experie… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Experience Manager |
Affected:
unspecified , ≤ 6.5.9.0
(custom)
Affected: unspecified , ≤ None (custom) |
Date Public
2021-09-14 00:00
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CVE-2021-37698 (GCVE-0-2021-37698)
Vulnerability from cvelistv5 – Published: 2021-08-19 13:55 – Updated: 2025-11-03 21:45
VLAI
EPSS
VEX
Title
Missing TLS service certificate validation in GelfWriter, ElasticsearchWriter, InfluxdbWriter and Influxdb2Writer
Summary
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions 2.5.0 through 2.13.0, ElasticsearchWriter, GelfWriter, InfluxdbWriter and Influxdb2Writer do not verify the server's certificate despite a certificate authority being specified. Icinga 2 instances which connect to any of the mentioned time series databases (TSDBs) using TLS over a spoofable infrastructure should immediately upgrade to version 2.13.1, 2.12.6, or 2.11.11 to patch the issue. Such instances should also change the credentials (if any) used by the TSDB writer feature to authenticate against the TSDB. There are no workarounds aside from upgrading.
Severity
7.5 (High)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/Icinga/icinga2/security/adviso… | x_refsource_CONFIRM |
| https://github.com/Icinga/icinga2/releases/tag/v2.11.11 | x_refsource_MISC |
| https://github.com/Icinga/icinga2/releases/tag/v2.12.6 | x_refsource_MISC |
| https://github.com/Icinga/icinga2/releases/tag/v2.13.1 | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2024… |
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CVE-2021-34599 (GCVE-0-2021-34599)
Vulnerability from cvelistv5 – Published: 2021-12-01 09:00 – Updated: 2024-09-17 02:32
VLAI
EPSS
VEX
Title
Improper Certificate Validation in CODESYS Git
Summary
Affected versions of CODESYS Git in Versions prior to V1.1.0.0 lack certificate validation in HTTPS handshakes. CODESYS Git does not implement certificate validation by default, so it does not verify that the server provides a valid and trusted HTTPS certificate. Since the certificate of the server to which the connection is made is not properly verified, the server connection is vulnerable to a man-in-the-middle attack.
Severity
7.4 (High)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://customers.codesys.com/index.php?eID=dumpF… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CODESYS | CODESYS Git |
Affected:
CODESYS Git , < V1.1.0.0
(custom)
|
Date Public
2021-12-01 00:00
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CVE-2021-32755 (GCVE-0-2021-32755)
Vulnerability from cvelistv5 – Published: 2021-07-13 20:55 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
Certificate pinning is not enforced on the web socket connection
Summary
Wire is a collaboration platform. wire-ios-transport handles authentication of requests, network failures, and retries for the iOS implementation of Wire. In the 3.82 version of the iOS application, a new web socket implementation was introduced for users running iOS 13 or higher. This new websocket implementation is not configured to enforce certificate pinning when available. Certificate pinning for the new websocket is enforced in version 3.84 or above.
Severity
5.4 (Medium)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/wireapp/wire-ios-transport/sec… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wireapp | wire-ios-transport |
Affected:
= 3.8.2
|
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CVE-2021-32728 (GCVE-0-2021-32728)
Vulnerability from cvelistv5 – Published: 2021-08-18 16:00 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
End-to-end encryption device setup did not verify public key
Summary
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a private key belongs to previously downloaded public certificate. If the Nextcloud instance serves a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. This issue is fixed in Nextcloud Desktop Client version 3.3.0. There are no known workarounds aside from upgrading.
Severity
6.5 (Medium)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://hackerone.com/reports/1189162 | x_refsource_MISC |
| https://github.com/nextcloud/security-advisories/… | x_refsource_CONFIRM |
| https://github.com/nextcloud/desktop/pull/3338 | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4974 | vendor-advisoryx_refsource_DEBIAN |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | security-advisories |
Affected:
< 3.3.0
|
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CVE-2021-32727 (GCVE-0-2021-32727)
Vulnerability from cvelistv5 – Published: 2021-07-12 20:40 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
End-to-end encryption device setup did not verify public key
Summary
Nextcloud Android Client is the Android client for Nextcloud. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.16.1, the Nextcloud Android client skipped a step that involved the client checking if a private key belonged to a previously downloaded public certificate. If the Nextcloud instance served a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. The vulnerability is patched in version 3.16.1. As a workaround, do not add additional end-to-end encrypted devices to a user account.
Severity
5.7 (Medium)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/nextcloud/security-advisories/… | x_refsource_CONFIRM |
| https://github.com/nextcloud/android/pull/8438 | x_refsource_MISC |
| https://hackerone.com/reports/1189162 | x_refsource_MISC |
| https://github.com/nextcloud/end_to_end_encryptio… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | security-advisories |
Affected:
< 3.16.1
|
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CVE-2021-31892 (GCVE-0-2021-31892)
Vulnerability from cvelistv5 – Published: 2021-07-13 11:02 – Updated: 2024-08-03 23:10
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in SINUMERIK Analyse MyCondition (All versions), SINUMERIK Analyze MyPerformance (All versions), SINUMERIK Analyze MyPerformance /OEE-Monitor (All versions), SINUMERIK Analyze MyPerformance /OEE-Tuning (All versions), SINUMERIK Integrate Client 02 (All versions >= V02.00.12 < 02.00.18), SINUMERIK Integrate Client 03 (All versions >= V03.00.12 < 03.00.18), SINUMERIK Integrate Client 04 (V04.00.02 and all versions >= V04.00.15 < 04.00.18), SINUMERIK Integrate for Production 4.1 (All versions < V4.1 SP10 HF3), SINUMERIK Integrate for Production 5.1 (V5.1), SINUMERIK Manage MyMachines (All versions), SINUMERIK Manage MyMachines /Remote (All versions), SINUMERIK Manage MyMachines /Spindel Monitor (All versions), SINUMERIK Manage MyPrograms (All versions), SINUMERIK Manage MyResources /Programs (All versions), SINUMERIK Manage MyResources /Tools (All versions), SINUMERIK Manage MyTools (All versions), SINUMERIK Operate V4.8 (All versions < V4.8 SP8), SINUMERIK Operate V4.93 (All versions < V4.93 HF7), SINUMERIK Operate V4.94 (All versions < V4.94 HF5), SINUMERIK Optimize MyProgramming /NX-Cam Editor (All versions). Due to an error in a third-party dependency the ssl flags used for setting up a TLS connection to a server are overwitten with wrong settings. This results in a missing validation of the server certificate and thus in a possible TLS MITM szenario.
Severity
No CVSS data available.
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-194-04 | x_refsource_MISC |
Impacted products
20 products
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"vendor": "Siemens",
"versions": [
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"status": "affected",
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"vendor": "Siemens",
"versions": [
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"status": "affected",
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"vendor": "Siemens",
"versions": [
{
"status": "affected",
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]
},
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},
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"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "V5.1"
}
]
},
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"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "SINUMERIK Manage MyMachines /Remote",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "SINUMERIK Manage MyMachines /Spindel Monitor",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "SINUMERIK Manage MyPrograms",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "SINUMERIK Manage MyResources /Programs",
"vendor": "Siemens",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
},
{
"product": "SINUMERIK Manage MyResources /Tools",
"vendor": "Siemens",
"versions": [
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"status": "affected",
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}
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},
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"product": "SINUMERIK Manage MyTools",
"vendor": "Siemens",
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CVE-2021-29504 (GCVE-0-2021-29504)
Vulnerability from cvelistv5 – Published: 2021-06-07 20:50 – Updated: 2024-08-03 22:11
VLAI
EPSS
VEX
Title
Improper Certificate Validation in WP-CLI framework
Summary
WP-CLI is the command-line interface for WordPress. An improper error handling in HTTPS requests management in WP-CLI version 0.12.0 and later allows remote attackers able to intercept the communication to remotely disable the certificate verification on WP-CLI side, gaining full control over the communication content, including the ability to impersonate update servers and push malicious updates towards WordPress instances controlled by the vulnerable WP-CLI agent, or push malicious updates toward WP-CLI itself. The vulnerability stems from the fact that the default behavior of `WP_CLI\Utils\http_request()` when encountering a TLS handshake error is to disable certificate validation and retry the same request. The default behavior has been changed with version 2.5.0 of WP-CLI and the `wp-cli/wp-cli` framework (via https://github.com/wp-cli/wp-cli/pull/5523) so that the `WP_CLI\Utils\http_request()` method accepts an `$insecure` option that is `false` by default and consequently that a TLS handshake failure is a hard error by default. This new default is a breaking change and ripples through to all consumers of `WP_CLI\Utils\http_request()`, including those in separate WP-CLI bundled or third-party packages. https://github.com/wp-cli/wp-cli/pull/5523 has also added an `--insecure` flag to the `cli update` command to counter this breaking change. There is no direct workaround for the default insecure behavior of `wp-cli/wp-cli` versions before 2.5.0. The workaround for dealing with the breaking change in the commands directly affected by the new secure default behavior is to add the `--insecure` flag to manually opt-in to the previous insecure behavior.
Severity
9.1 (Critical)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/wp-cli/wp-cli/security/advisor… | x_refsource_CONFIRM |
| https://github.com/wp-cli/checksum-command/pull/86 | x_refsource_MISC |
| https://github.com/wp-cli/config-command/pull/128 | x_refsource_MISC |
| https://github.com/wp-cli/core-command/pull/186 | x_refsource_MISC |
| https://github.com/wp-cli/extension-command/pull/287 | x_refsource_MISC |
| https://github.com/wp-cli/package-command/pull/138 | x_refsource_MISC |
| https://github.com/wp-cli/wp-cli/pull/5523 | x_refsource_MISC |
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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.