Common Weakness Enumeration
CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
1908 vulnerabilities reference this CWE, most recent first.
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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"product": "SINUMERIK Integrate Client 03",
"vendor": "Siemens",
"versions": [
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"vendor": "Siemens",
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"vendor": "Siemens",
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"vendor": "Siemens",
"versions": [
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"vendor": "Siemens",
"versions": [
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"product": "SINUMERIK Manage MyMachines /Spindel Monitor",
"vendor": "Siemens",
"versions": [
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},
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"vendor": "Siemens",
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"status": "affected",
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},
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"product": "SINUMERIK Manage MyResources /Programs",
"vendor": "Siemens",
"versions": [
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"status": "affected",
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},
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"vendor": "Siemens",
"versions": [
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},
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"vendor": "Siemens",
"versions": [
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"status": "affected",
"version": "All versions \u003c V4.8 SP8"
}
]
},
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"vendor": "Siemens",
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},
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"vendor": "Siemens",
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},
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"vendor": "Siemens",
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"value": "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 \u003e= V02.00.12 \u003c 02.00.18), SINUMERIK Integrate Client 03 (All versions \u003e= V03.00.12 \u003c 03.00.18), SINUMERIK Integrate Client 04 (V04.00.02 and all versions \u003e= V04.00.15 \u003c 04.00.18), SINUMERIK Integrate for Production 4.1 (All versions \u003c 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 \u003c V4.8 SP8), SINUMERIK Operate V4.93 (All versions \u003c V4.93 HF7), SINUMERIK Operate V4.94 (All versions \u003c 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."
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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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CVE-2021-29495 (GCVE-0-2021-29495)
Vulnerability from cvelistv5 – Published: 2021-05-07 15:15 – Updated: 2024-08-03 22:11
VLAI
EPSS
VEX
Title
Nim stdlib httpClient does not validate peer certificates by default
Summary
Nim is a statically typed compiled systems programming language. In Nim standard library before 1.4.2, httpClient SSL/TLS certificate verification was disabled by default. Users can upgrade to version 1.4.2 to receive a patch or, as a workaround, set "verifyMode = CVerifyPeer" as documented.
Severity
5.9 (Medium)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/nim-lang/security/security/adv… | x_refsource_CONFIRM |
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CVE-2021-27257 (GCVE-0-2021-27257)
Vulnerability from cvelistv5 – Published: 2021-03-05 20:00 – Updated: 2024-08-03 20:48
VLAI
EPSS
VEX
Summary
This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the downloading of files via FTP. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-12362.
Severity
6.5 (Medium)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.netgear.com/000062883/Security-Advisor… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
Credits
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CVE-2021-26320 (GCVE-0-2021-26320)
Vulnerability from cvelistv5 – Published: 2021-11-16 18:05 – Updated: 2024-09-16 18:34
VLAI
EPSS
VEX
Summary
Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP
Severity
No CVSS data available.
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.amd.com/en/corporate/product-security… | x_refsource_MISC |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| AMD | 1st Gen AMD EPYC™ |
Affected:
unspecified , < NaplesPI-SP3_1.0.0.G
(custom)
|
|
| AMD | 2nd Gen AMD EPYC™ |
Affected:
unspecified , < RomePI-SP3_1.0.0.C
(custom)
|
|
| AMD | 3rd Gen AMD EPYC™ |
Affected:
unspecified , < MilanPI-SP3_1.0.0.4
(custom)
|
Date Public
2021-11-09 00:00
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CVE-2021-25635 (GCVE-0-2021-25635)
Vulnerability from cvelistv5 – Published: 2025-03-21 14:52 – Updated: 2025-03-21 15:13
VLAI
EPSS
VEX
Title
Content Manipulation with Certificate Validation Attack
Summary
An Improper Certificate Validation vulnerability in LibreOffice allowed
an attacker to self sign an ODF document, with a signature untrusted by
the target, then modify it to change the signature algorithm to an
invalid (or unknown to LibreOffice) algorithm and LibreOffice would incorrectly present such a signature with an unknown algorithm as a
valid signature issued by a trusted person
This issue affects LibreOffice: from 7.0 before 7.0.5, from 7.1 before 7.1.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Document Foundation | LibreOffice |
Affected:
7.0 , < 7.0.5
(7.0 series)
Affected: 7.1 , < 7.1.1 (7.1 series) |
Date Public
2021-10-11 14:00
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CVE-2021-25634 (GCVE-0-2021-25634)
Vulnerability from cvelistv5 – Published: 2021-10-12 13:33 – Updated: 2024-09-17 00:46
VLAI
EPSS
VEX
Title
Timestamp Manipulation with Signature Wrapping
Summary
LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to modify a digitally signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.
Severity
No CVSS data available.
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.libreoffice.org/about-us/security/adv… | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4988 | vendor-advisoryx_refsource_DEBIAN |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Document Foundation | LibreOffice |
Affected:
7-0 , < 7.0.6
(custom)
Affected: 7-1 , < 7.1.2 (custom) |
Date Public
2021-10-11 00:00
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CVE-2021-25633 (GCVE-0-2021-25633)
Vulnerability from cvelistv5 – Published: 2021-10-11 16:43 – Updated: 2024-09-16 18:28
VLAI
EPSS
VEX
Title
Content Manipulation with Double Certificate Attack
Summary
LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to combine multiple certificate data, which when opened caused LibreOffice to display a validly signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.
Severity
No CVSS data available.
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.libreoffice.org/about-us/security/adv… | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4988 | vendor-advisoryx_refsource_DEBIAN |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Document Foundation | LibreOffice |
Affected:
7-0 , < 7.0.6
(custom)
Affected: 7-1 , < 7.1.2 (custom) |
Date Public
2021-10-11 00:00
Credits
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CVE-2021-23167 (GCVE-0-2021-23167)
Vulnerability from cvelistv5 – Published: 2021-11-18 18:00 – Updated: 2024-09-17 02:05
VLAI
EPSS
VEX
Summary
Improper certificate validation vulnerability in SMTP Client allows man-in-the-middle attack to retrieve sensitive information from the Command Centre Server. This issue affects: Gallagher Command Centre 8.50 versions prior to 8.50.2048 (MR3); 8.40 versions prior to 8.40.2063 (MR4); 8.30 versions prior to 8.30.1454 (MR4) ; version 8.20 and prior versions.
Severity
8.1 (High)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.gallagher.com/Security-Advisorie… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Gallagher | Command Centre |
Affected:
unspecified , ≤ 8.20
(custom)
Affected: 8.50 , < 8.50.2048 (MR3) (custom) Affected: 8.40 , < 8.40.2063 (MR4) (custom) Affected: 8.30 , < 8.30.1454 (MR4) (custom) |
Date Public
2021-11-15 00:00
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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.