CWE-287
DiscouragedImproper 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.
6040 vulnerabilities reference this CWE, most recent first.
GHSA-4F9F-MPMJ-4C52
Vulnerability from github – Published: 2023-03-30 21:30 – Updated: 2024-03-27 15:30An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.
{
"affected": [],
"aliases": [
"CVE-2023-27536"
],
"database_specific": {
"cwe_ids": [
"CWE-287",
"CWE-305"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-30T20:15:00Z",
"severity": "CRITICAL"
},
"details": "An authentication bypass vulnerability exists libcurl \u003c8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.",
"id": "GHSA-4f9f-mpmj-4c52",
"modified": "2024-03-27T15:30:36Z",
"published": "2023-03-30T21:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27536"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1895135"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202310-12"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230420-0010"
}
],
"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-4F9R-X588-PP2H
Vulnerability from github – Published: 2026-03-30 19:29 – Updated: 2026-03-30 19:29Summary
Fleet contained an issue in the user invitation flow where the email address provided during invite acceptance was not validated against the email address associated with the invite. An attacker who obtained a valid invite token could create an account under an arbitrary email address while inheriting the role granted by the invite, including global admin.
Impact
If an attacker gains access to a valid invite token, they can create a Fleet user account with an email address of their choosing while inheriting the invite’s assigned role and team memberships.
This issue:
- Requires possession of a valid invite token
- Does not bypass authentication controls beyond invite-based account creation
- Does not expose data without successful account creation
Workarounds
If upgrading immediately is not possible:
- Treat invite links as sensitive credentials and avoid sharing them in public or semi-public channels (e.g., Slack, Teams).
- Revoke and reissue invites if there is any concern that an invite link may have been exposed.
- Prefer issuing invites with the minimum required privileges and elevating roles after account creation when appropriate.
For more information
If there are any questions or comments about this advisory:
Send an email to security@fleetdm.com
Credits
Fleet thanks @fuzzztf for responsibly reporting this issue.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/fleetdm/fleet/v4"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.81.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-34389"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-30T19:29:13Z",
"nvd_published_at": "2026-03-27T20:16:35Z",
"severity": "MODERATE"
},
"details": "### Summary\n\nFleet contained an issue in the user invitation flow where the email address provided during invite acceptance was not validated against the email address associated with the invite. An attacker who obtained a valid invite token could create an account under an arbitrary email address while inheriting the role granted by the invite, including global admin.\n\n### Impact\n\nIf an attacker gains access to a valid invite token, they can create a Fleet user account with an email address of their choosing while inheriting the invite\u2019s assigned role and team memberships.\n\nThis issue:\n\n- Requires possession of a valid invite token\n- Does not bypass authentication controls beyond invite-based account creation\n- Does not expose data without successful account creation\n\n### Workarounds\n\nIf upgrading immediately is not possible:\n\n- Treat invite links as sensitive credentials and avoid sharing them in public or semi-public channels (e.g., Slack, Teams).\n- Revoke and reissue invites if there is any concern that an invite link may have been exposed.\n- Prefer issuing invites with the minimum required privileges and elevating roles after account creation when appropriate.\n\n### For more information\n\nIf there are any questions or comments about this advisory:\n\nSend an email to [security@fleetdm.com](mailto:security@fleetdm.com)\n\n### Credits\n\nFleet thanks @fuzzztf for responsibly reporting this issue.",
"id": "GHSA-4f9r-x588-pp2h",
"modified": "2026-03-30T19:29:13Z",
"published": "2026-03-30T19:29:13Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/fleetdm/fleet/security/advisories/GHSA-4f9r-x588-pp2h"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34389"
},
{
"type": "PACKAGE",
"url": "https://github.com/fleetdm/fleet"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U",
"type": "CVSS_V4"
}
],
"summary": "Fleet\u0027s user account creation via invite does not enforce invited email address"
}
GHSA-4FV4-CQ5V-X45M
Vulnerability from github – Published: 2022-05-17 05:45 – Updated: 2022-07-08 18:54shared/util/StateUtils.java in Apache MyFaces 1.1.x before 1.1.8, 1.2.x before 1.2.9, and 2.0.x before 2.0.1 uses an encrypted View State without a Message Authentication Code (MAC), which makes it easier for remote attackers to perform successful modifications of the View State via a padding oracle attack.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.myfaces.shared:myfaces-shared-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.1.0"
},
{
"fixed": "1.1.8"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.myfaces.shared:myfaces-shared-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.2.0"
},
{
"fixed": "1.2.9"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.myfaces.shared:myfaces-shared-core"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.myfaces.core:myfaces-impl"
},
"ranges": [
{
"events": [
{
"introduced": "1.1.0"
},
{
"fixed": "1.1.8"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.myfaces.core:myfaces-impl"
},
"ranges": [
{
"events": [
{
"introduced": "1.2.0"
},
{
"fixed": "1.2.9"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.myfaces.core:myfaces-impl"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2010-2057"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": true,
"github_reviewed_at": "2022-07-08T18:54:49Z",
"nvd_published_at": "2010-10-20T18:00:00Z",
"severity": "MODERATE"
},
"details": "shared/util/StateUtils.java in Apache MyFaces 1.1.x before 1.1.8, 1.2.x before 1.2.9, and 2.0.x before 2.0.1 uses an encrypted View State without a Message Authentication Code (MAC), which makes it easier for remote attackers to perform successful modifications of the View State via a padding oracle attack.",
"id": "GHSA-4fv4-cq5v-x45m",
"modified": "2022-07-08T18:54:49Z",
"published": "2022-05-17T05:45:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2010-2057"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=623799"
},
{
"type": "WEB",
"url": "https://issues.apache.org/jira/browse/MYFACES-2749"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc/myfaces/shared/trunk/core/src/main/java/org/apache/myfaces/shared/util/StateUtils.java?r1=943327\u0026r2=951801"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Improper Authentication in Apache MyFaces"
}
GHSA-4FVF-8XMX-9Q42
Vulnerability from github – Published: 2022-10-20 19:00 – Updated: 2022-10-24 19:00Tenda 11N with firmware version V5.07.33_cn suffers from an Authentication Bypass vulnerability.
{
"affected": [],
"aliases": [
"CVE-2022-42233"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-20T17:15:00Z",
"severity": "CRITICAL"
},
"details": "Tenda 11N with firmware version V5.07.33_cn suffers from an Authentication Bypass vulnerability.",
"id": "GHSA-4fvf-8xmx-9q42",
"modified": "2022-10-24T19:00:26Z",
"published": "2022-10-20T19:00:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42233"
},
{
"type": "WEB",
"url": "https://github.com/D0ngsec/vulns/blob/main/Tenda/Tenda_11N_Authentication_Bypass.md"
}
],
"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-4FWQ-HHHJ-MFGX
Vulnerability from github – Published: 2022-05-01 23:52 – Updated: 2022-05-01 23:52The Real-Time Information Server (RIS) Data Collector service in Cisco Unified Communications Manager (CUCM) 5.x before 5.1(3) and 6.x before 6.1(1) allows remote attackers to bypass authentication, and obtain cluster configuration information and statistics, via a direct TCP connection to the service port, aka Bug ID CSCsj90843.
{
"affected": [],
"aliases": [
"CVE-2008-2730"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2008-06-26T17:41:00Z",
"severity": "MODERATE"
},
"details": "The Real-Time Information Server (RIS) Data Collector service in Cisco Unified Communications Manager (CUCM) 5.x before 5.1(3) and 6.x before 6.1(1) allows remote attackers to bypass authentication, and obtain cluster configuration information and statistics, via a direct TCP connection to the service port, aka Bug ID CSCsj90843.",
"id": "GHSA-4fwq-hhhj-mfgx",
"modified": "2022-05-01T23:52:52Z",
"published": "2022-05-01T23:52:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2008-2730"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/43355"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/30848"
},
{
"type": "WEB",
"url": "http://www.cisco.com/en/US/products/products_security_advisory09186a00809b9011.shtml"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/29935"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id?1020361"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2008/1933/references"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4FWQ-RWJ5-PM2V
Vulnerability from github – Published: 2024-03-28 03:30 – Updated: 2025-01-14 06:32Improper authentication vulnerability in NEC Corporation Aterm WG1800HP4, WG1200HS3, WG1900HP2, WG1200HP3, WG1800HP3, WG1200HS2, WG1900HP, WG1200HP2, W1200EX(-MS), WG1200HS, WG1200HP, WF300HP2, W300P, WF800HP, WR8165N, WG2200HP, WF1200HP2, WG1800HP2, WF1200HP, WG600HP, WG300HP, WF300HP, WG1800HP, WG1400HP, WR8175N, WR9300N, WR8750N, WR8160N, WR9500N, WR8600N, WR8370N, WR8170N, WR8700N, WR8300N, WR8150N, WR4100N, WR4500N, WR8100N, WR8500N, CR2500P, WR8400N, WR8200N, WR1200H, WR7870S, WR6670S, WR7850S, WR6650S, WR6600H, WR7800H, WM3400RN, WM3450RN, WM3500R, WM3600R, WM3800R, WR8166N, MR01LN and MR02LN all versions allows a attacker to execute an arbitrary command with the root privilege via the internet.
{
"affected": [],
"aliases": [
"CVE-2024-28012"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-28T01:15:47Z",
"severity": "CRITICAL"
},
"details": "Improper authentication vulnerability in NEC Corporation Aterm WG1800HP4, WG1200HS3, WG1900HP2, WG1200HP3, WG1800HP3, WG1200HS2, WG1900HP, WG1200HP2, W1200EX(-MS), WG1200HS, WG1200HP, WF300HP2, W300P, WF800HP, WR8165N, WG2200HP, WF1200HP2, WG1800HP2, WF1200HP, WG600HP, WG300HP, WF300HP, WG1800HP, WG1400HP, WR8175N, WR9300N, WR8750N, WR8160N, WR9500N, WR8600N, WR8370N, WR8170N, WR8700N, WR8300N, WR8150N, WR4100N, WR4500N, WR8100N, WR8500N, CR2500P, WR8400N, WR8200N, WR1200H, WR7870S, WR6670S, WR7850S, WR6650S, WR6600H, WR7800H, WM3400RN, WM3450RN, WM3500R, WM3600R, WM3800R, WR8166N, MR01LN and MR02LN all versions allows a attacker to execute an arbitrary command with the root privilege via the internet.",
"id": "GHSA-4fwq-rwj5-pm2v",
"modified": "2025-01-14T06:32:00Z",
"published": "2024-03-28T03:30:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28012"
},
{
"type": "WEB",
"url": "https://https://jpn.nec.com/security-info/secinfo/nv24-001_en.html"
},
{
"type": "WEB",
"url": "https://jpn.nec.com/security-info/secinfo/nv24-001_en.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"
}
]
}
GHSA-4FWV-52RJ-6CV6
Vulnerability from github – Published: 2022-05-14 01:03 – Updated: 2022-05-14 01:03The audit logon feature in Remote Desktop Protocol (RDP) in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly log unauthorized login attempts supplying valid credentials, which makes it easier for remote attackers to bypass intended access restrictions via a series of attempts, aka "Remote Desktop Protocol (RDP) Failure to Audit Vulnerability."
{
"affected": [],
"aliases": [
"CVE-2014-6318"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-11-11T22:55:00Z",
"severity": "MODERATE"
},
"details": "The audit logon feature in Remote Desktop Protocol (RDP) in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly log unauthorized login attempts supplying valid credentials, which makes it easier for remote attackers to bypass intended access restrictions via a series of attempts, aka \"Remote Desktop Protocol (RDP) Failure to Audit Vulnerability.\"",
"id": "GHSA-4fwv-52rj-6cv6",
"modified": "2022-05-14T01:03:37Z",
"published": "2022-05-14T01:03:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-6318"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-074"
},
{
"type": "WEB",
"url": "http://blogs.technet.com/b/srd/archive/2014/11/11/assessing-risk-for-the-november-2014-security-updates.aspx"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/60089"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/70981"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4FWW-6347-XMWG
Vulnerability from github – Published: 2022-05-24 17:46 – Updated: 2024-07-30 03:30An issue was discovered on Sannce Smart HD Wifi Security Camera EAN 2 950004 595317 devices. By default, a mobile application is used to stream over UDP. However, the device offers many more services that also enable streaming. Although the service used by the mobile application requires a password, the other streaming services do not. By initiating communication on the RTSP port, an attacker can obtain access to the video feed without authenticating.
{
"affected": [],
"aliases": [
"CVE-2019-20464"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-02T16:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered on Sannce Smart HD Wifi Security Camera EAN 2 950004 595317 devices. By default, a mobile application is used to stream over UDP. However, the device offers many more services that also enable streaming. Although the service used by the mobile application requires a password, the other streaming services do not. By initiating communication on the RTSP port, an attacker can obtain access to the video feed without authenticating.",
"id": "GHSA-4fww-6347-xmwg",
"modified": "2024-07-30T03:30:50Z",
"published": "2022-05-24T17:46:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20464"
},
{
"type": "WEB",
"url": "https://www.eurofins-cybersecurity.com/news/connected-devices-baby-monitors-part-2"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Jul/14"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-4FXR-CQPX-Q5M7
Vulnerability from github – Published: 2022-05-02 03:56 – Updated: 2022-05-02 03:56admin.php in dB Masters Multimedia Links Directory 3.1.3 allows remote attackers to bypass authentication and gain administrative access via a certain value of the admin_log cookie.
{
"affected": [],
"aliases": [
"CVE-2009-4584"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2010-01-06T22:00:00Z",
"severity": "HIGH"
},
"details": "admin.php in dB Masters Multimedia Links Directory 3.1.3 allows remote attackers to bypass authentication and gain administrative access via a certain value of the admin_log cookie.",
"id": "GHSA-4fxr-cqpx-q5m7",
"modified": "2022-05-02T03:56:07Z",
"published": "2022-05-02T03:56:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-4584"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.org/0912-exploits/dbmastersmm-insecure.txt"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/37985"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/61393"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/37517"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4G56-8MC7-HPJQ
Vulnerability from github – Published: 2022-05-24 17:08 – Updated: 2025-10-22 00:31A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Memory Corruption Vulnerability'.
{
"affected": [],
"aliases": [
"CVE-2020-0688"
],
"database_specific": {
"cwe_ids": [
"CWE-287",
"CWE-502",
"CWE-798"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-02-11T22:15:00Z",
"severity": "HIGH"
},
"details": "A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka \u0027Microsoft Exchange Memory Corruption Vulnerability\u0027.",
"id": "GHSA-4g56-8mc7-hpjq",
"modified": "2025-10-22T00:31:50Z",
"published": "2022-05-24T17:08:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0688"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0688"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0688"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-20-258"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/156592/Microsoft-Exchange-2019-15.2.221.12-Remote-Code-Execution.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/156620/Exchange-Control-Panel-Viewstate-Deserialization.html"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
Mitigation
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.