Common Weakness Enumeration

CWE-295

Allowed

Improper Certificate Validation

Abstraction: Base · Status: Draft

The product does not validate, or incorrectly validates, a certificate.

2039 vulnerabilities reference this CWE, most recent first.

GHSA-M574-P9PR-7XFP

Vulnerability from github – Published: 2022-05-17 02:47 – Updated: 2022-05-17 02:47
VLAI
Details

Jetstar App for iOS before 3.0.0 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2016-1221"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-04-21T20:59:00Z",
    "severity": "MODERATE"
  },
  "details": "Jetstar App for iOS before 3.0.0 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.",
  "id": "GHSA-m574-p9pr-7xfp",
  "modified": "2022-05-17T02:47:26Z",
  "published": "2022-05-17T02:47:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-1221"
    },
    {
      "type": "WEB",
      "url": "http://jvn.jp/en/jp/JVN43529183/index.html"
    },
    {
      "type": "WEB",
      "url": "http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000067.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M575-4PR9-X5XR

Vulnerability from github – Published: 2026-02-23 18:32 – Updated: 2026-02-23 18:32
VLAI
Details

An issue pertaining to CWE-295: Improper Certificate Validation was discovered in fofolee uTools-quickcommand 5.0.3.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-70044"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-23T16:29:36Z",
    "severity": "MODERATE"
  },
  "details": "An issue pertaining to CWE-295: Improper Certificate Validation was discovered in fofolee uTools-quickcommand 5.0.3.",
  "id": "GHSA-m575-4pr9-x5xr",
  "modified": "2026-02-23T18:32:02Z",
  "published": "2026-02-23T18:32:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-70044"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/zcxlighthouse/c00a0eef8ac41ec15ec43b75e2a2f7f8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fofolee"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fofolee/uTools-quickcommand"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M578-PV52-H53W

Vulnerability from github – Published: 2024-08-06 21:30 – Updated: 2024-08-06 21:30
VLAI
Details

There is a vulnerability in the AP Certificate Management Service which could allow a threat actor to execute an unauthenticated RCE attack. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system leading to complete system compromise.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-42395"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-06T19:15:57Z",
    "severity": "CRITICAL"
  },
  "details": "There is a vulnerability in the AP Certificate Management Service which could allow a threat actor to execute an unauthenticated RCE attack. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system leading to complete system compromise.",
  "id": "GHSA-m578-pv52-h53w",
  "modified": "2024-08-06T21:30:47Z",
  "published": "2024-08-06T21:30:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42395"
    },
    {
      "type": "WEB",
      "url": "https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw04678en_us\u0026docLocale=en_US"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M658-P24X-P74R

Vulnerability from github – Published: 2022-02-12 00:00 – Updated: 2024-05-20 21:04
VLAI
Summary
Duplicate Advisory: TLS certificate validation error in mellium.im/xmpp
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-h289-x5wc-xcv8. This link is maintained to preserve external references.

Original Description

In Mellium mellium.im/xmpp through 0.21.0, an attacker capable of spoofing DNS TXT records can redirect a WebSocket connection request to a server under their control without causing TLS certificate verification to fail. This occurs because the wrong host name is selected during this verification.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "mellium.im/xmpp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.18.0"
            },
            {
              "fixed": "0.21.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-02-14T22:38:04Z",
    "nvd_published_at": "2022-02-11T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-h289-x5wc-xcv8. This link is maintained to preserve external references.\n\n## Original Description\nIn Mellium mellium.im/xmpp through 0.21.0, an attacker capable of spoofing DNS TXT records can redirect a WebSocket connection request to a server under their control without causing TLS certificate verification to fail. This occurs because the wrong host name is selected during this verification.",
  "id": "GHSA-m658-p24x-p74r",
  "modified": "2024-05-20T21:04:24Z",
  "published": "2022-02-12T00:00:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24968"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mellium/xmpp/pull/260"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mellium/xmpp/commit/0d92aa486da69b71f2f4a30e62aa722c711b98ac"
    },
    {
      "type": "WEB",
      "url": "https://mellium.im/cve/cve-2022-24968"
    },
    {
      "type": "WEB",
      "url": "https://mellium.im/issue/259"
    },
    {
      "type": "WEB",
      "url": "https://mellium.im/xmpp"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2022-0370"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: TLS certificate validation error in mellium.im/xmpp",
  "withdrawn": "2024-05-20T21:04:24Z"
}

GHSA-M6FW-CR7C-RH9V

Vulnerability from github – Published: 2022-05-17 02:39 – Updated: 2025-04-20 03:39
VLAI
Details

The "Peoples Bank Tulsa" by Peoples Bank - OK app 3.0.2 -- aka peoples-bank-tulsa/id1074279285 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-9600"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-06-16T12:29:00Z",
    "severity": "MODERATE"
  },
  "details": "The \"Peoples Bank Tulsa\" by Peoples Bank - OK app 3.0.2 -- aka peoples-bank-tulsa/id1074279285 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.",
  "id": "GHSA-m6fw-cr7c-rh9v",
  "modified": "2025-04-20T03:39:14Z",
  "published": "2022-05-17T02:39:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9600"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/%40chronic_9612/advisory-44-credit-union-apps-for-ios-may-allow-login-credential-exposure-4d2f380b85c5"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/@chronic_9612/advisory-44-credit-union-apps-for-ios-may-allow-login-credential-exposure-4d2f380b85c5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M6MG-MJQ2-V73R

Vulnerability from github – Published: 2022-05-24 19:11 – Updated: 2022-05-24 19:11
VLAI
Details

The AWV component of Mitel MiCollab before 9.3 could allow an attacker to perform a Man-In-the-Middle attack due to improper TLS negotiation. A successful exploit could allow an attacker to view and modify data.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-32069"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-13T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The AWV component of Mitel MiCollab before 9.3 could allow an attacker to perform a Man-In-the-Middle attack due to improper TLS negotiation. A successful exploit could allow an attacker to view and modify data.",
  "id": "GHSA-m6mg-mjq2-v73r",
  "modified": "2022-05-24T19:11:05Z",
  "published": "2022-05-24T19:11:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32069"
    },
    {
      "type": "WEB",
      "url": "https://www.mitel.com/support/security-advisories"
    },
    {
      "type": "WEB",
      "url": "https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-21-0005"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-M74J-PP4X-R2G8

Vulnerability from github – Published: 2022-05-14 01:30 – Updated: 2022-05-14 01:30
VLAI
Details

Cordaware bestinformed Microsoft Windows client before 6.2.1.0 is affected by insecure SSL certificate verification and insecure access patterns. These issues allow remote attackers to downgrade encrypted connections to cleartext.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-6266"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-02-25T23:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "Cordaware bestinformed Microsoft Windows client before 6.2.1.0 is affected by insecure SSL certificate verification and insecure access patterns. These issues allow remote attackers to downgrade encrypted connections to cleartext.",
  "id": "GHSA-m74j-pp4x-r2g8",
  "modified": "2022-05-14T01:30:10Z",
  "published": "2022-05-14T01:30:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6266"
    },
    {
      "type": "WEB",
      "url": "https://www.detack.de/en/cve-2019-6265-6266"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M7JQ-XVR4-F7XC

Vulnerability from github – Published: 2022-11-04 19:01 – Updated: 2022-11-08 19:00
VLAI
Details

A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain TLS connections that are processed by an affected device. An attacker could exploit this vulnerability by establishing a large number of concurrent TLS connections to an affected device. A successful exploit could allow the attacker to cause the device to drop new TLS email messages that come from the associated email servers. Exploitation of this vulnerability does not cause the affected device to unexpectedly reload. The device will recover autonomously within a few hours of when the attack is halted or mitigated.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-20960"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295",
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-04T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain TLS connections that are processed by an affected device. An attacker could exploit this vulnerability by establishing a large number of concurrent TLS connections to an affected device. A successful exploit could allow the attacker to cause the device to drop new TLS email messages that come from the associated email servers. Exploitation of this vulnerability does not cause the affected device to unexpectedly reload. The device will recover autonomously within a few hours of when the attack is halted or mitigated.",
  "id": "GHSA-m7jq-xvr4-f7xc",
  "modified": "2022-11-08T19:00:23Z",
  "published": "2022-11-04T19:01:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-20960"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-gdghHmbV"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-gdghHmbV"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M7P8-9W66-9FRM

Vulnerability from github – Published: 2018-01-06 01:11 – Updated: 2023-01-23 21:24
VLAI
Summary
net-ldap Improper Certificate Validation vulnerability
Details

The Net::LDAP (aka net-ldap) gem before 0.16.0 for Ruby has Missing SSL Certificate Validation.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "net-ldap"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.16.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-17718"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:45:19Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "The Net::LDAP (aka net-ldap) gem before 0.16.0 for Ruby has Missing SSL Certificate Validation.",
  "id": "GHSA-m7p8-9w66-9frm",
  "modified": "2023-01-23T21:24:13Z",
  "published": "2018-01-06T01:11:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17718"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby-ldap/ruby-net-ldap/issues/258"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby-ldap/ruby-net-ldap/pull/279"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ruby-ldap/ruby-net-ldap"
    },
    {
      "type": "WEB",
      "url": "http://openwall.com/lists/oss-security/2017/12/17/10"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net-ldap Improper Certificate Validation vulnerability"
}

GHSA-M835-W378-P8VP

Vulnerability from github – Published: 2022-05-24 19:18 – Updated: 2022-05-24 19:18
VLAI
Details

CFEngine Enterprise 3.15.0 through 3.15.4 has Missing SSL Certificate Validation.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-36756"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-27T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "CFEngine Enterprise 3.15.0 through 3.15.4 has Missing SSL Certificate Validation.",
  "id": "GHSA-m835-w378-p8vp",
  "modified": "2022-05-24T19:18:57Z",
  "published": "2022-05-24T19:18:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36756"
    },
    {
      "type": "WEB",
      "url": "https://cfengine.com/blog/2021/cve-2021-38379-and-cve-2021-36756"
    },
    {
      "type": "WEB",
      "url": "https://cfengine.com/downloads/cfengine-enterprise"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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.