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.
5964 vulnerabilities reference this CWE, most recent first.
GHSA-8C96-XX6X-RR2W
Vulnerability from github – Published: 2022-05-02 03:54 – Updated: 2022-05-02 03:54The (1) CHAP and (2) MS-CHAP-V2 authentication capabilities in the PPP Access Concentrator (PPPAC) function in Internet Initiative Japan SEIL/B1 firmware 1.00 through 2.52 use the same challenge for each authentication attempt, which allows remote attackers to bypass authentication via a replay attack.
{
"affected": [],
"aliases": [
"CVE-2009-4409"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-12-23T21:30:00Z",
"severity": "LOW"
},
"details": "The (1) CHAP and (2) MS-CHAP-V2 authentication capabilities in the PPP Access Concentrator (PPPAC) function in Internet Initiative Japan SEIL/B1 firmware 1.00 through 2.52 use the same challenge for each authentication attempt, which allows remote attackers to bypass authentication via a replay attack.",
"id": "GHSA-8c96-xx6x-rr2w",
"modified": "2022-05-02T03:54:25Z",
"published": "2022-05-02T03:54:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-4409"
},
{
"type": "WEB",
"url": "http://jvn.jp/en/jp/JVN49602378/index.html"
},
{
"type": "WEB",
"url": "http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/37628"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/61118"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/37293"
},
{
"type": "WEB",
"url": "http://www.seil.jp/seilseries/security/2009/a00697.php"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8CCJ-P46R-JWQQ
Vulnerability from github – Published: 2026-06-18 14:27 – Updated: 2026-06-18 14:27Summary
Setting PRAISONAI_CALL_AUTH=disabled completely disables all authentication on the /api/v1/agents/{id}/invoke endpoint. This bypass is advertised in the application's own error messages, making it likely to appear in production Docker and Compose configurations.
Details
# src/praisonai/praisonai/api/agent_invoke.py:32
_CALL_AUTH_DISABLED = os.getenv('PRAISONAI_CALL_AUTH', '').lower() == 'disabled'
async def verify_token(...) -> None:
if _CALL_AUTH_DISABLED:
return # all authentication skipped unconditionally
The application's own error message advertises the bypass:
"Set CALL_SERVER_TOKEN or PRAISONAI_CALL_AUTH=disabled to run without authentication."
This causes the setting to appear in Docker/Compose configurations as a convenience option.
Proof of Concept
import os
os.environ["PRAISONAI_CALL_AUTH"] = "disabled"
# verify_token() now returns immediately for any request
# POST /api/v1/agents/any-agent/invoke → 200 OK (no token needed)
Common vulnerable deployment:
# docker-compose.yml
environment:
- PRAISONAI_CALL_AUTH=disabled # auth completely disabled
Impact
Full unauthenticated access to the agent invocation API. Any agent registered on the server can be triggered without credentials, potentially executing arbitrary actions depending on the agent's configured tools.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "praisonai"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.6.61"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-18T14:27:15Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Summary\nSetting `PRAISONAI_CALL_AUTH=disabled` completely disables all authentication on the `/api/v1/agents/{id}/invoke` endpoint. This bypass is advertised in the application\u0027s own error messages, making it likely to appear in production Docker and Compose configurations.\n\n### Details\n\n```python\n# src/praisonai/praisonai/api/agent_invoke.py:32\n_CALL_AUTH_DISABLED = os.getenv(\u0027PRAISONAI_CALL_AUTH\u0027, \u0027\u0027).lower() == \u0027disabled\u0027\n\nasync def verify_token(...) -\u003e None:\n if _CALL_AUTH_DISABLED:\n return # all authentication skipped unconditionally\n```\n\nThe application\u0027s own error message advertises the bypass:\n\u003e \"Set CALL_SERVER_TOKEN or PRAISONAI_CALL_AUTH=disabled to run without authentication.\"\n\nThis causes the setting to appear in Docker/Compose configurations as a convenience option.\n\n### Proof of Concept\n\n```python\nimport os\nos.environ[\"PRAISONAI_CALL_AUTH\"] = \"disabled\"\n# verify_token() now returns immediately for any request\n# POST /api/v1/agents/any-agent/invoke \u2192 200 OK (no token needed)\n```\n\nCommon vulnerable deployment:\n\n```yaml\n# docker-compose.yml\nenvironment:\n - PRAISONAI_CALL_AUTH=disabled # auth completely disabled\n```\n\n### Impact\nFull unauthenticated access to the agent invocation API. Any agent registered on the server can be triggered without credentials, potentially executing arbitrary actions depending on the agent\u0027s configured tools.",
"id": "GHSA-8ccj-p46r-jwqq",
"modified": "2026-06-18T14:27:15Z",
"published": "2026-06-18T14:27:15Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-8ccj-p46r-jwqq"
},
{
"type": "PACKAGE",
"url": "https://github.com/MervinPraison/PraisonAI"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "PraisonAI: PRAISONAI_CALL_AUTH=disabled environment variable unconditionally disables authentication"
}
GHSA-8CGC-7WJM-RF9R
Vulnerability from github – Published: 2022-05-24 17:43 – Updated: 2023-08-08 15:31Insufficient policy enforcement in Autofill in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2021-21177"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-03-09T18:15:00Z",
"severity": "MODERATE"
},
"details": "Insufficient policy enforcement in Autofill in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.",
"id": "GHSA-8cgc-7wjm-rf9r",
"modified": "2023-08-08T15:31:16Z",
"published": "2022-05-24T17:43:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21177"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1173879"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202104-08"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4886"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-8CPJ-P4G2-V3PC
Vulnerability from github – Published: 2022-05-17 02:02 – Updated: 2022-05-17 02:02Cisco TelePresence Manager 1.2.x through 1.6.x allows remote attackers to bypass authentication and invoke arbitrary methods via a malformed SOAP request, aka Bug ID CSCtc59562.
{
"affected": [],
"aliases": [
"CVE-2011-0380"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-02-25T12:00:00Z",
"severity": "HIGH"
},
"details": "Cisco TelePresence Manager 1.2.x through 1.6.x allows remote attackers to bypass authentication and invoke arbitrary methods via a malformed SOAP request, aka Bug ID CSCtc59562.",
"id": "GHSA-8cpj-p4g2-v3pc",
"modified": "2022-05-17T02:02:43Z",
"published": "2022-05-17T02:02:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-0380"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/65618"
},
{
"type": "WEB",
"url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080b6e14f.shtml"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/46526"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id?1025111"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8CQV-3QPF-VQ6X
Vulnerability from github – Published: 2022-05-17 04:19 – Updated: 2025-04-12 12:43The update function in umbraco.webservices/templates/templateService.cs in the TemplateService component in Umbraco CMS before 6.0.4 does not require authentication, which allows remote attackers to execute arbitrary ASP.NET code via a crafted SOAP request.
{
"affected": [],
"aliases": [
"CVE-2013-4793"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-12-27T18:59:00Z",
"severity": "HIGH"
},
"details": "The update function in umbraco.webservices/templates/templateService.cs in the TemplateService component in Umbraco CMS before 6.0.4 does not require authentication, which allows remote attackers to execute arbitrary ASP.NET code via a crafted SOAP request.",
"id": "GHSA-8cqv-3qpf-vq6x",
"modified": "2025-04-12T12:43:28Z",
"published": "2022-05-17T04:19:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4793"
},
{
"type": "WEB",
"url": "https://labs.mwrinfosecurity.com/advisories/2013/11/29/umbraco-cms-templateservice-remote-code-execution"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8CV6-H2PR-548G
Vulnerability from github – Published: 2024-03-06 18:30 – Updated: 2024-03-06 18:30A vulnerability in Cisco Duo Authentication for Windows Logon and RDP could allow an authenticated, physical attacker to bypass secondary authentication and access an affected Windows device.
This vulnerability is due to a failure to invalidate locally created trusted sessions after a reboot of the affected device. An attacker with primary user credentials could exploit this vulnerability by attempting to authenticate to an affected device. A successful exploit could allow the attacker to access the affected device without valid permissions.
{
"affected": [],
"aliases": [
"CVE-2024-20301"
],
"database_specific": {
"cwe_ids": [
"CWE-287",
"CWE-613"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-06T17:15:08Z",
"severity": "MODERATE"
},
"details": "A vulnerability in Cisco Duo Authentication for Windows Logon and RDP could allow an authenticated, physical attacker to bypass secondary authentication and access an affected Windows device. \n\n This vulnerability is due to a failure to invalidate locally created trusted sessions after a reboot of the affected device. An attacker with primary user credentials could exploit this vulnerability by attempting to authenticate to an affected device. A successful exploit could allow the attacker to access the affected device without valid permissions.",
"id": "GHSA-8cv6-h2pr-548g",
"modified": "2024-03-06T18:30:37Z",
"published": "2024-03-06T18:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-20301"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-duo-win-bypass-pn42KKBm"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8CV8-94R4-CP2J
Vulnerability from github – Published: 2022-05-02 03:15 – Updated: 2022-05-02 03:15Whole Hog Ware Support 1.x allows remote attackers to bypass authentication and obtain administrative access via an integer value in the adminid cookie.
{
"affected": [],
"aliases": [
"CVE-2009-0460"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-02-10T07:00:00Z",
"severity": "HIGH"
},
"details": "Whole Hog Ware Support 1.x allows remote attackers to bypass authentication and obtain administrative access via an integer value in the adminid cookie.",
"id": "GHSA-8cv8-94r4-cp2j",
"modified": "2022-05-02T03:15:45Z",
"published": "2022-05-02T03:15:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-0460"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/7951"
},
{
"type": "WEB",
"url": "http://osvdb.org/51734"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/33777"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/33577"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8CVM-WRHF-RH9G
Vulnerability from github – Published: 2023-09-06 06:30 – Updated: 2024-04-04 07:30Improper authentication in SecSettings prior to SMR Sep-2023 Release 1 allows attacker to access Captive Portal Wi-Fi in Reactivation Lock status.
{
"affected": [],
"aliases": [
"CVE-2023-30708"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-06T04:15:11Z",
"severity": "HIGH"
},
"details": "Improper authentication in SecSettings prior to SMR Sep-2023 Release 1 allows attacker to access Captive Portal Wi-Fi in Reactivation Lock status.",
"id": "GHSA-8cvm-wrhf-rh9g",
"modified": "2024-04-04T07:30:39Z",
"published": "2023-09-06T06:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-30708"
},
{
"type": "WEB",
"url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2023\u0026month=09"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8F4C-MXMX-GJGV
Vulnerability from github – Published: 2023-06-06 09:30 – Updated: 2024-04-04 04:34Transient DOS due to improper authorization in Modem
{
"affected": [],
"aliases": [
"CVE-2022-40521"
],
"database_specific": {
"cwe_ids": [
"CWE-285",
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-06T08:15:11Z",
"severity": "HIGH"
},
"details": "Transient DOS due to improper authorization in Modem",
"id": "GHSA-8f4c-mxmx-gjgv",
"modified": "2024-04-04T04:34:08Z",
"published": "2023-06-06T09:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40521"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/june-2023-bulletin"
}
],
"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-8F63-R6MW-5H4Q
Vulnerability from github – Published: 2026-03-23 18:30 – Updated: 2026-03-23 18:30A security vulnerability has been detected in kalcaddle kodbox 1.64. This impacts the function loginAfter/tfaVerify of the file /workspace/source-code/plugins/client/controller/tfa/index.class.php of the component Password Login. The manipulation leads to improper authentication. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is said to be difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
{
"affected": [],
"aliases": [
"CVE-2026-4592"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-23T16:16:52Z",
"severity": "MODERATE"
},
"details": "A security vulnerability has been detected in kalcaddle kodbox 1.64. This impacts the function loginAfter/tfaVerify of the file /workspace/source-code/plugins/client/controller/tfa/index.class.php of the component Password Login. The manipulation leads to improper authentication. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is said to be difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-8f63-r6mw-5h4q",
"modified": "2026-03-23T18:30:31Z",
"published": "2026-03-23T18:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4592"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.352428"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.352428"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.775471"
},
{
"type": "WEB",
"url": "https://vulnplus-note.wetolink.com/share/S6CMNnndYUXU"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
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.