Common Weakness Enumeration

CWE-287

Discouraged

Improper Authentication

Abstraction: Class · Status: Draft

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

5964 vulnerabilities reference this CWE, most recent first.

GHSA-M3CG-WRVH-HRX5

Vulnerability from github – Published: 2022-05-02 03:17 – Updated: 2025-04-11 03:58
VLAI
Details

hagent.exe in Wyse Device Manager (WDM) 4.7.x does not require authentication for commands, which allows remote attackers to obtain management access via a crafted query, as demonstrated by a V52 query that triggers a power-off action.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2009-0695"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2012-06-19T20:55:00Z",
    "severity": "HIGH"
  },
  "details": "hagent.exe in Wyse Device Manager (WDM) 4.7.x does not require authentication for commands, which allows remote attackers to obtain management access via a crafted query, as demonstrated by a V52 query that triggers a power-off action.",
  "id": "GHSA-m3cg-wrvh-hrx5",
  "modified": "2025-04-11T03:58:34Z",
  "published": "2022-05-02T03:17:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2009-0695"
    },
    {
      "type": "WEB",
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0101.html"
    },
    {
      "type": "WEB",
      "url": "http://www.exploit-db.com/exploits/19137"
    },
    {
      "type": "WEB",
      "url": "http://www.kb.cert.org/vuls/id/654545"
    },
    {
      "type": "WEB",
      "url": "http://www.theregister.co.uk/2009/07/10/wyse_remote_exploit_bugs"
    },
    {
      "type": "WEB",
      "url": "http://www.wyse.com/serviceandsupport/Wyse%20Security%20Bulletin%20WSB09-01.pdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-M3CQ-XCX9-3GVM

Vulnerability from github – Published: 2022-12-21 17:24 – Updated: 2025-04-15 12:50
VLAI
Summary
kyverno verifyImages rule bypass possible with malicious proxy/registry
Details

Impact

Users of Kyverno on versions 1.8.3 or 1.8.4 who use verifyImages rules to verify container image signatures, and do not prevent use of unknown registries.

Patches

This issue has been fixed in version 1.8.5

Workarounds

Configure a Kyverno policy to restrict registries to a set of secure trusted image registries (sample).

References

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/kyverno/kyverno"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.8.3"
            },
            {
              "fixed": "1.8.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-47633"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-21T17:24:10Z",
    "nvd_published_at": "2022-12-23T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nUsers of Kyverno on versions 1.8.3 or 1.8.4 who use `verifyImages` rules to verify container image signatures, and do not prevent use of unknown registries.\n\n### Patches\n\nThis issue has been fixed in version [1.8.5](https://github.com/kyverno/kyverno/releases/tag/v1.8.5)\n\n### Workarounds\n\nConfigure a Kyverno policy to restrict registries to a set of secure trusted image registries ([sample](https://kyverno.io/policies/best-practices/restrict_image_registries/restrict_image_registries/)).\n\n### References",
  "id": "GHSA-m3cq-xcx9-3gvm",
  "modified": "2025-04-15T12:50:46Z",
  "published": "2022-12-21T17:24:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-m3cq-xcx9-3gvm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47633"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kyverno/kyverno/pull/5713"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kyverno/kyverno"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kyverno/kyverno/compare/v1.8.4...v1.8.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kyverno/kyverno/releases/tag/v1.8.5"
    },
    {
      "type": "WEB",
      "url": "https://kyverno.io/docs/writing-policies/verify-images"
    },
    {
      "type": "WEB",
      "url": "https://kyverno.io/policies/best-practices/restrict_image_registries/restrict_image_registries"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2022-1180"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20230426095744/https://kyverno.io/policies/best-practices/restrict_image_registries/restrict_image_registries"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kyverno verifyImages rule bypass possible with malicious proxy/registry"
}

GHSA-M3G5-FR99-8PGQ

Vulnerability from github – Published: 2024-04-25 09:32 – Updated: 2026-04-23 15:32
VLAI
Details

Improper Authentication vulnerability in wp-buy Login as User or Customer (User Switching) allows Privilege Escalation.This issue affects Login as User or Customer (User Switching): from n/a through 3.8.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-51484"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-266",
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-25T09:15:07Z",
    "severity": "CRITICAL"
  },
  "details": "Improper Authentication vulnerability in wp-buy Login as User or Customer (User Switching) allows Privilege Escalation.This issue affects Login as User or Customer (User Switching): from n/a through 3.8.",
  "id": "GHSA-m3g5-fr99-8pgq",
  "modified": "2026-04-23T15:32:19Z",
  "published": "2024-04-25T09:32:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51484"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/Wordpress/Plugin/login-as-customer-or-user/vulnerability/wordpress-login-as-user-or-customer-plugin-3-8-unauthenticated-account-takeover-vulnerability?_s_id=cve"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/vulnerability/login-as-customer-or-user/wordpress-login-as-user-or-customer-plugin-3-8-unauthenticated-account-takeover-vulnerability?_s_id=cve"
    }
  ],
  "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-M3HP-8546-5QMR

Vulnerability from github – Published: 2025-01-22 15:32 – Updated: 2025-03-10 21:31
VLAI
Summary
Duplicate Advisory: Authentication Bypass Due to Missing LDAP Bind After Password Reset in Keycloak
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-2p82-5wwr-43cw. This link is maintained to preserve external references.

Original Description

A flaw was found in Keycloak. When an Active Directory user resets their password, the system updates it without performing an LDAP bind to validate the new credentials against AD. This vulnerability allows users whose AD accounts are expired or disabled to regain access in Keycloak, bypassing AD restrictions. The issue enables authentication bypass and could allow unauthorized access under certain conditions.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-ldap-federation"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "26.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-01-22T18:18:25Z",
    "nvd_published_at": "2025-01-22T15:15:14Z",
    "severity": "MODERATE"
  },
  "details": "# Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-2p82-5wwr-43cw. This link is maintained to preserve external references.\n\n# Original Description\n\nA flaw was found in Keycloak. When an Active Directory user resets their password, the system updates it without performing an LDAP bind to validate the new credentials against AD. This vulnerability allows users whose AD accounts are expired or disabled to regain access in Keycloak, bypassing AD restrictions. The issue enables authentication bypass and could allow unauthorized access under certain conditions.",
  "id": "GHSA-m3hp-8546-5qmr",
  "modified": "2025-03-10T21:31:09Z",
  "published": "2025-01-22T15:32:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0604"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2544"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2545"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-0604"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2338993"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: Authentication Bypass Due to Missing LDAP Bind After Password Reset in Keycloak ",
  "withdrawn": "2025-03-10T21:07:03Z"
}

GHSA-M3R2-464W-G5X4

Vulnerability from github – Published: 2022-05-14 03:18 – Updated: 2022-05-14 03:18
VLAI
Details

Some Lenovo System x server BIOS/UEFI versions, when Secure Boot mode is enabled by a system administrator, do not properly authenticate signed code before booting it. As a result, an attacker with physical access to the system could boot unsigned code.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-3775"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-05-04T17:29:00Z",
    "severity": "MODERATE"
  },
  "details": "Some Lenovo System x server BIOS/UEFI versions, when Secure Boot mode is enabled by a system administrator, do not properly authenticate signed code before booting it. As a result, an attacker with physical access to the system could boot unsigned code.",
  "id": "GHSA-m3r2-464w-g5x4",
  "modified": "2022-05-14T03:18:34Z",
  "published": "2022-05-14T03:18:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-3775"
    },
    {
      "type": "WEB",
      "url": "https://support.lenovo.com/us/en/solutions/LEN-20241"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M3R3-QCHC-M9XX

Vulnerability from github – Published: 2022-03-11 00:02 – Updated: 2022-03-17 00:01
VLAI
Details

Acer QuickAccess 2.01.300x before 2.01.3030 and 3.00.30xx before 3.00.3038 contains a local privilege escalation vulnerability. The user process communicates with a service of system authority through a named pipe. In this case, the Named Pipe is also given Read and Write rights to the general user. In addition, the service program does not verify the user when communicating. A thread may exist with a specific command. When the path of the program to be executed is sent, there is a local privilege escalation in which the service program executes the path with system privileges.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-24286"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-10T17:46:00Z",
    "severity": "HIGH"
  },
  "details": "Acer QuickAccess 2.01.300x before 2.01.3030 and 3.00.30xx before 3.00.3038 contains a local privilege escalation vulnerability. The user process communicates with a service of system authority through a named pipe. In this case, the Named Pipe is also given Read and Write rights to the general user. In addition, the service program does not verify the user when communicating. A thread may exist with a specific command. When the path of the program to be executed is sent, there is a local privilege escalation in which the service program executes the path with system privileges.",
  "id": "GHSA-m3r3-qchc-m9xx",
  "modified": "2022-03-17T00:01:28Z",
  "published": "2022-03-11T00:02:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24286"
    },
    {
      "type": "WEB",
      "url": "https://community.acer.com/en/kb/articles/14762"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M3R6-PWX8-F7QX

Vulnerability from github – Published: 2022-05-14 02:48 – Updated: 2022-05-14 02:48
VLAI
Details

The RPC service in Tripwire (formerly nCircle) IP360 VnE Manager 7.2.2 before 7.2.6 allows remote attackers to bypass authentication and (1) enumerate users, (2) reset passwords, or (3) manipulate IP filter restrictions via crafted "privileged commands."

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2015-6237"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-12-27T19:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "The RPC service in Tripwire (formerly nCircle) IP360 VnE Manager 7.2.2 before 7.2.6 allows remote attackers to bypass authentication and (1) enumerate users, (2) reset passwords, or (3) manipulate IP filter restrictions via crafted \"privileged commands.\"",
  "id": "GHSA-m3r6-pwx8-f7qx",
  "modified": "2022-05-14T02:48:00Z",
  "published": "2022-05-14T02:48:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-6237"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2015/Oct/20"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/536609/100/0/threaded"
    }
  ],
  "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-M3RF-7M4W-R66Q

Vulnerability from github – Published: 2021-12-09 19:09 – Updated: 2025-03-07 19:09
VLAI
Summary
Improper Authentication in Flask-AppBuilder
Details

Impact

Improper authentication on the REST API. Allows for a malicious actor with a carefully crafted request to successfully authenticate and gain access to existing protected REST API endpoints. Only affects non database authentication types, and new REST API endpoints.

Patches

Upgrade to Flask-AppBuilder 3.3.4

For more information

If you have any questions or comments about this advisory: * Open an issue in https://github.com/dpgaspar/Flask-AppBuilder

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Flask-AppBuilder"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.3.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-41265"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-12-09T18:14:23Z",
    "nvd_published_at": "2021-12-09T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nImproper authentication on the REST API. Allows for a malicious actor with a carefully crafted request to successfully authenticate and gain access to existing protected REST API endpoints. Only affects non database authentication types, and new REST API endpoints.\n\n### Patches\nUpgrade to Flask-AppBuilder 3.3.4\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in https://github.com/dpgaspar/Flask-AppBuilder",
  "id": "GHSA-m3rf-7m4w-r66q",
  "modified": "2025-03-07T19:09:17Z",
  "published": "2021-12-09T19:09:07Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-m3rf-7m4w-r66q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41265"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/commit/eba517aab121afa3f3f2edb011ec6bc4efd61fbc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dpgaspar/Flask-AppBuilder/releases/tag/v3.3.4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/flask-appbuilder/PYSEC-2021-851.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Improper Authentication in Flask-AppBuilder"
}

GHSA-M3W6-C4J9-5C65

Vulnerability from github – Published: 2025-11-19 18:31 – Updated: 2025-11-19 21:31
VLAI
Details

The Newtec Celox UHD (models: CELOXA504, CELOXA820) running firmware version celox-21.6.13 is vulnerable to an authentication bypass. An attacker can exploit this issue by modifying intercepted responses from the /celoxservice endpoint. By injecting a forged response body during the loginWithUserName flow, the attacker can gain Superuser or Operator access without providing valid credentials.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-63210"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-19T18:15:49Z",
    "severity": "CRITICAL"
  },
  "details": "The Newtec Celox UHD (models: CELOXA504, CELOXA820) running firmware version celox-21.6.13 is vulnerable to an authentication bypass. An attacker can exploit this issue by modifying intercepted responses from the /celoxservice endpoint. By injecting a forged response body during the loginWithUserName flow, the attacker can gain Superuser or Operator access without providing valid credentials.",
  "id": "GHSA-m3w6-c4j9-5c65",
  "modified": "2025-11-19T21:31:23Z",
  "published": "2025-11-19T18:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-63210"
    },
    {
      "type": "WEB",
      "url": "https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-63210_Newtec%20Celox%20UHD%20Authentication%20Bypass%20_%20Privilege%20Escalation"
    },
    {
      "type": "WEB",
      "url": "https://www.newtec.com"
    }
  ],
  "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-M3WM-RJVF-M778

Vulnerability from github – Published: 2022-10-18 19:00 – Updated: 2025-10-22 00:32
VLAI
Details

An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.6, FortiProxy version 7.2.0 and version 7.0.0 through 7.0.6 and FortiSwitchManager version 7.2.0 and 7.0.0 allows an unauthenticated atttacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-40684"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-10-18T14:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.6, FortiProxy version 7.2.0 and version 7.0.0 through 7.0.6 and FortiSwitchManager version 7.2.0 and 7.0.0 allows an unauthenticated atttacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests.",
  "id": "GHSA-m3wm-rjvf-m778",
  "modified": "2025-10-22T00:32:37Z",
  "published": "2022-10-18T19:00:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40684"
    },
    {
      "type": "WEB",
      "url": "https://fortiguard.com/psirt/FG-IR-22-377"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-40684"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/169431/Fortinet-FortiOS-FortiProxy-FortiSwitchManager-Authentication-Bypass.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/171515/Fortinet-7.2.1-Authentication-Bypass.html"
    }
  ],
  "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"
    }
  ]
}

Mitigation
Architecture and Design

Strategy: Libraries or Frameworks

Use an authentication framework or library such as the OWASP ESAPI Authentication feature.

CAPEC-114: Authentication Abuse

An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker.

CAPEC-115: Authentication Bypass

An attacker gains access to application, service, or device with the privileges of an authorized or privileged user by evading or circumventing an authentication mechanism. The attacker is therefore able to access protected data without authentication ever having taken place.

CAPEC-151: Identity Spoofing

Identity Spoofing refers to the action of assuming (i.e., taking on) the identity of some other entity (human or non-human) and then using that identity to accomplish a goal. An adversary may craft messages that appear to come from a different principle or use stolen / spoofed authentication credentials.

CAPEC-194: Fake the Source of Data

An adversary takes advantage of improper authentication to provide data or services under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or to assume the rights granted to another individual. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. The root of the attack (in this case the email system) fails to properly authenticate the source and this results in the reader incorrectly performing the instructed action. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.

CAPEC-22: Exploiting Trust in Client

An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.

CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data

This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.

CAPEC-593: Session Hijacking

This type of attack involves an adversary that exploits weaknesses in an application's use of sessions in performing authentication. The adversary is able to steal or manipulate an active session and use it to gain unathorized access to the application.

CAPEC-633: Token Impersonation

An adversary exploits a weakness in authentication to create an access token (or equivalent) that impersonates a different entity, and then associates a process/thread to that that impersonated token. This action causes a downstream user to make a decision or take action that is based on the assumed identity, and not the response that blocks the adversary.

CAPEC-650: Upload a Web Shell to a Web Server

By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.

CAPEC-94: Adversary in the Middle (AiTM)

An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.