Common Weakness Enumeration
CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
1907 vulnerabilities reference this CWE, most recent first.
CVE-2022-39334 (GCVE-0-2022-39334)
Vulnerability from cvelistv5 – Published: 2022-11-25 00:00 – Updated: 2025-11-03 18:08
VLAI
EPSS
VEX
Title
nextcloudcmd incorrectly trusts bad TLS certificates
Summary
Nextcloud also ships a CLI utility called nextcloudcmd which is sometimes used for automated scripting and headless servers. Versions of nextcloudcmd prior to 3.6.1 would incorrectly trust invalid TLS certificates, which may enable a Man-in-the-middle attack that exposes sensitive data or credentials to a network attacker. This affects the CLI only. It does not affect the standard GUI desktop Nextcloud clients, and it does not affect the Nextcloud server.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | security-advisories |
Affected:
< 3.6.1
|
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CVE-2022-39264 (GCVE-0-2022-39264)
Vulnerability from cvelistv5 – Published: 2022-09-28 00:00 – Updated: 2025-04-23 16:54
VLAI
EPSS
VEX
Title
nheko vulnerable to secret poisoning using MITM on secret requests by the homeserver
Summary
nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nheko-Reborn | nheko |
Affected:
< 0.10.2
|
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CVE-2022-39161 (GCVE-0-2022-39161)
Vulnerability from cvelistv5 – Published: 2023-05-03 19:56 – Updated: 2025-02-12 16:05
VLAI
EPSS
VEX
Title
IBM WebSphere Application Server information disclosure
Summary
IBM WebSphere Application Server 7.0, 8.0, 8.5, 9.0, and IBM WebSphere Application Server Liberty, when configured to communicate with the Web Server Plug-ins for IBM WebSphere Application Server, could allow an authenticated user to conduct spoofing attacks. A man-in-the-middle attacker could exploit this vulnerability using a certificate issued by a trusted authority to obtain sensitive information. IBM X-Force ID: 235069.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/6987779 | vendor-advisory |
| https://exchange.xforce.ibmcloud.com/vulnerabilit… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | WebSphere Application Server |
Affected:
7.0, 8.0, 8.5, 9.0, Liberty
|
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CVE-2022-37437 (GCVE-0-2022-37437)
Vulnerability from cvelistv5 – Published: 2022-08-16 19:50 – Updated: 2024-09-16 20:03
VLAI
EPSS
VEX
Title
Ingest Actions UI in Splunk Enterprise 9.0.0 disabled TLS certificate validation
Summary
When using Ingest Actions to configure a destination that resides on Amazon Simple Storage Service (S3) in Splunk Web, TLS certificate validation is not correctly performed and tested for the destination. The vulnerability only affects connections between Splunk Enterprise and an Ingest Actions Destination through Splunk Web and only applies to environments that have configured TLS certificate validation. It does not apply to Destinations configured directly in the outputs.conf configuration file. The vulnerability affects Splunk Enterprise version 9.0.0 and does not affect versions below 9.0.0, including the 8.1.x and 8.2.x versions.
Severity
7.4 (High)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.splunk.com/en_us/product-security/ann… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Splunk | Splunk Enterprise |
Affected:
9.0.0
|
Date Public
2022-08-16 00:00
Credits
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CVE-2022-34865 (GCVE-0-2022-34865)
Vulnerability from cvelistv5 – Published: 2022-08-04 17:48 – Updated: 2024-09-16 16:52
VLAI
EPSS
VEX
Title
Traffic intelligence feeds vulnerability CVE-2022-34865
Summary
In BIG-IP Versions 15.1.x before 15.1.6.1, 14.1.x before 14.1.5, and all versions of 13.1.x, Traffic Intelligence feeds, which use HTTPS, do not verify the remote endpoint identity, allowing for potential data poisoning. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
4.8 (Medium)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://support.f5.com/csp/article/K25046752 | x_refsource_MISC |
Impacted products
Date Public
2022-08-03 00:00
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CVE-2022-34404 (GCVE-0-2022-34404)
Vulnerability from cvelistv5 – Published: 2023-02-10 20:30 – Updated: 2025-03-26 15:19
VLAI
EPSS
VEX
Summary
Dell System Update, version 2.0.0 and earlier, contains an Improper Certificate Validation in data parser module. A local attacker with high privileges could potentially exploit this vulnerability, leading to credential theft and/or denial of service.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/000203733 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | System Update |
Affected:
0 , ≤ 2.0.0
(custom)
|
Date Public
2022-09-26 16:00
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CVE-2022-34394 (GCVE-0-2022-34394)
Vulnerability from cvelistv5 – Published: 2022-09-28 20:30 – Updated: 2025-05-20 20:30
VLAI
EPSS
VEX
Summary
Dell OS10, version 10.5.3.4, contains an Improper Certificate Validation vulnerability in Support Assist. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to unauthorized access to limited switch configuration data. The vulnerability could be leveraged by attackers to conduct man-in-the-middle attacks to gain access to the Support Assist information.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00020297… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | Dell Networking OS10 |
Affected:
unspecified , < 10.5.4.0
(custom)
|
Date Public
2022-09-01 00:00
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CVE-2022-33684 (GCVE-0-2022-33684)
Vulnerability from cvelistv5 – Published: 2022-11-04 00:00 – Updated: 2025-05-02 18:58
VLAI
EPSS
VEX
Title
Apache Pulsar C++/Python OAuth Clients prior to 3.0.0 were vulnerable to an MITM attack due to Disabled Certificate Validation
Summary
The Apache Pulsar C++ Client does not verify peer TLS certificates when making HTTPS calls for the OAuth2.0 Client Credential Flow, even when tlsAllowInsecureConnection is disabled via configuration. This vulnerability allows an attacker to perform a man in the middle attack and intercept and/or modify the GET request that is sent to the ClientCredentialFlow 'issuer url'. The intercepted credentials can be used to acquire authentication data from the OAuth2.0 server to then authenticate with an Apache Pulsar cluster. An attacker can only take advantage of this vulnerability by taking control of a machine 'between' the client and the server. The attacker must then actively manipulate traffic to perform the attack. The Apache Pulsar Python Client wraps the C++ client, so it is also vulnerable in the same way. This issue affects Apache Pulsar C++ Client and Python Client versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.3; 2.9.0 to 2.9.2; 2.10.0 to 2.10.1; 2.6.4 and earlier. Any users running affected versions of the C++ Client or the Python Client should rotate vulnerable OAuth2.0 credentials, including client_id and client_secret. 2.7 C++ and Python Client users should upgrade to 2.7.5 and rotate vulnerable OAuth2.0 credentials. 2.8 C++ and Python Client users should upgrade to 2.8.4 and rotate vulnerable OAuth2.0 credentials. 2.9 C++ and Python Client users should upgrade to 2.9.3 and rotate vulnerable OAuth2.0 credentials. 2.10 C++ and Python Client users should upgrade to 2.10.2 and rotate vulnerable OAuth2.0 credentials. 3.0 C++ users are unaffected and 3.0 Python Client users will be unaffected when it is released. Any users running the C++ and Python Client for 2.6 or less should upgrade to one of the above patched versions.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Pulsar |
Affected:
2.7 , ≤ 2.7.4
(custom)
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CVE-2022-33683 (GCVE-0-2022-33683)
Vulnerability from cvelistv5 – Published: 2022-09-23 09:25 – Updated: 2025-05-22 18:27
VLAI
EPSS
VEX
Title
Disabled Certificate Validation makes Broker, Proxy Admin Clients vulnerable to MITM attack
Summary
Apache Pulsar Brokers and Proxies create an internal Pulsar Admin Client that does not verify peer TLS certificates, even when tlsAllowInsecureConnection is disabled via configuration. The Pulsar Admin Client's intra-cluster and geo-replication HTTPS connections are vulnerable to man in the middle attacks, which could leak authentication data, configuration data, and any other data sent by these clients. An attacker can only take advantage of this vulnerability by taking control of a machine 'between' the client and the server. The attacker must then actively manipulate traffic to perform the attack. This issue affects Apache Pulsar Broker and Proxy versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.3; 2.9.0 to 2.9.2; 2.10.0; 2.6.4 and earlier.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/42v5rsxj36r3nhfxh… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Pulsar |
Affected:
2.10.0
Affected: 2.7 , ≤ 2.7.4 (custom) Affected: 2.8 , ≤ 2.8.3 (custom) Affected: 2.9 , ≤ 2.9.2 (custom) Affected: 2.6 and earlier , ≤ 2.6.4 (custom) |
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CVE-2022-33682 (GCVE-0-2022-33682)
Vulnerability from cvelistv5 – Published: 2022-09-23 09:25 – Updated: 2025-05-27 14:46
VLAI
EPSS
VEX
Title
Disabled Hostname Verification makes Brokers, Proxies vulnerable to MITM attack
Summary
TLS hostname verification cannot be enabled in the Pulsar Broker's Java Client, the Pulsar Broker's Java Admin Client, the Pulsar WebSocket Proxy's Java Client, and the Pulsar Proxy's Admin Client leaving intra-cluster connections and geo-replication connections vulnerable to man in the middle attacks, which could leak credentials, configuration data, message data, and any other data sent by these clients. The vulnerability is for both the pulsar+ssl protocol and HTTPS. An attacker can only take advantage of this vulnerability by taking control of a machine 'between' the client and the server. The attacker must then actively manipulate traffic to perform the attack by providing the client with a cryptographically valid certificate for an unrelated host. This issue affects Apache Pulsar Broker, Proxy, and WebSocket Proxy versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.3; 2.9.0 to 2.9.2; 2.10.0; 2.6.4 and earlier.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/l0ynfl161qghwfcgb… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Pulsar |
Affected:
2.10.0
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"value": "Any users running affected versions of the Pulsar Broker, Pulsar Proxy, or Pulsar WebSocket Proxy should rotate static authentication data vulnerable to man in the middle attacks used by these applications, including tokens and passwords. \n\nTo enable hostname verification, update the following configuration files.\n\nIn the Broker configuration (broker.conf, by default) and in the WebSocket Proxy configuration (websocket.conf, by default), set:\n\nbrokerClient_tlsHostnameVerificationEnable=true\n\nIn Pulsar Helm chart deployments, the Broker and WebSocket Proxy setting name should be prefixed with \"PULSAR_PREFIX_\".\n\nIn the Proxy configuration (proxy.conf, by default), set:\n\ntlsHostnameVerificationEnabled=true\n\n2.7 users should upgrade Pulsar Brokers, Proxies, and WebSocket Proxies to 2.7.5, rotate vulnerable authentication data, including tokens and passwords, and apply the above configuration.\n2.8 users should upgrade Pulsar Brokers, Proxies, and WebSocket Proxies to 2.8.4, rotate vulnerable authentication data, including tokens and passwords, and apply the above configuration.\n2.9 users should upgrade Pulsar Brokers, Proxies, and WebSocket Proxies to 2.9.3, rotate vulnerable authentication data, including tokens and passwords, and apply the above configuration.\n2.10 users should upgrade Pulsar Brokers, Proxies, and WebSocket Proxies to 2.10.1, rotate vulnerable authentication data, including tokens and passwords, and apply the above configuration.\nAny users running Pulsar Brokers, Proxies, and WebSocket Proxies for 2.6.4 and earlier should upgrade to one of the above patched versions, rotate vulnerable authentication data, including tokens and passwords, and apply the above configuration."
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"value": "TLS hostname verification cannot be enabled in the Pulsar Broker\u0027s Java Client, the Pulsar Broker\u0027s Java Admin Client, the Pulsar WebSocket Proxy\u0027s Java Client, and the Pulsar Proxy\u0027s Admin Client leaving intra-cluster connections and geo-replication connections vulnerable to man in the middle attacks, which could leak credentials, configuration data, message data, and any other data sent by these clients. The vulnerability is for both the pulsar+ssl protocol and HTTPS. An attacker can only take advantage of this vulnerability by taking control of a machine \u0027between\u0027 the client and the server. The attacker must then actively manipulate traffic to perform the attack by providing the client with a cryptographically valid certificate for an unrelated host. This issue affects Apache Pulsar Broker, Proxy, and WebSocket Proxy versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.3; 2.9.0 to 2.9.2; 2.10.0; 2.6.4 and earlier."
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"datePublished": "2022-09-23T09:25:14.000Z",
"dateReserved": "2022-06-15T00:00:00.000Z",
"dateUpdated": "2025-05-27T14:46:07.468Z",
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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.