Common Weakness Enumeration

CWE-330

Discouraged

Use of Insufficiently Random Values

Abstraction: Class · Status: Stable

API response cwe.mitre.org

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

445 vulnerabilities reference this CWE, most recent first.

GHSA-Q556-RCVC-QQ2M

Vulnerability from github – Published: 2022-05-24 22:28 – Updated: 2022-10-25 19:00
VLAI
Details

Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2021-26322"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-11-16T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "Persistent platform private key may not be protected with a random IV leading to a potential \u201ctwo time pad attack\u201d.",
  "id": "GHSA-q556-rcvc-qq2m",
  "modified": "2022-10-25T19:00:22Z",
  "published": "2022-05-24T22:28:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26322"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021"
    }
  ],
  "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-Q5XH-737M-H26F

Vulnerability from github – Published: 2026-05-21 09:32 – Updated: 2026-05-21 09:32
VLAI
Details

Netatalk 2.0.0 through 4.4.2 generates AFP session tokens derived from predictable process IDs, which allows a remote authenticated attacker to cause a denial of service by exploiting the reconnect mechanism.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-44054"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-21T08:16:21Z",
    "severity": "MODERATE"
  },
  "details": "Netatalk 2.0.0 through 4.4.2 generates AFP session tokens derived from predictable process IDs, which allows a remote authenticated attacker to cause a denial of service by exploiting the reconnect mechanism.",
  "id": "GHSA-q5xh-737m-h26f",
  "modified": "2026-05-21T09:32:09Z",
  "published": "2026-05-21T09:32:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44054"
    },
    {
      "type": "WEB",
      "url": "https://netatalk.io/security/CVE-2026-44054"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-Q6JR-MP8X-XVMQ

Vulnerability from github – Published: 2022-07-05 00:00 – Updated: 2022-07-12 00:00
VLAI
Details

Use of insufficiently random values vulnerability exists in Vnet/IP communication module VI461 of YOKOGAWA Wide Area Communication Router (WAC Router) AW810D, which may allow a remote attacker to cause denial-of-service (DoS) condition by sending a specially crafted packet.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2022-32284"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-04T02:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use of insufficiently random values vulnerability exists in Vnet/IP communication module VI461 of YOKOGAWA Wide Area Communication Router (WAC Router) AW810D, which may allow a remote attacker to cause denial-of-service (DoS) condition by sending a specially crafted packet.",
  "id": "GHSA-q6jr-mp8x-xvmq",
  "modified": "2022-07-12T00:00:54Z",
  "published": "2022-07-05T00:00:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32284"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/vu/JVNVU95343906/index.html"
    },
    {
      "type": "WEB",
      "url": "https://web-material3.yokogawa.com/1/32825/files/YSAR-22-0005-E.pdf"
    },
    {
      "type": "WEB",
      "url": "https://web-material3.yokogawa.com/19/32825/files/YSAR-22-0005-J.pdf"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-22-181-02"
    }
  ],
  "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-Q6MM-XFGF-GJR7

Vulnerability from github – Published: 2022-07-13 00:01 – Updated: 2022-07-16 00:00
VLAI
Details

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions), SCALANCE X200-4P IRT (All versions), SCALANCE X201-3P IRT (All versions), SCALANCE X201-3P IRT (All versions), SCALANCE X201-3P IRT PRO (All versions), SCALANCE X201-3P IRT PRO (All versions), SCALANCE X202-2IRT (All versions), SCALANCE X202-2IRT (All versions), SCALANCE X202-2P IRT (All versions), SCALANCE X202-2P IRT (All versions), SCALANCE X202-2P IRT PRO (All versions), SCALANCE X202-2P IRT PRO (All versions), SCALANCE X204-2 (All versions < V5.2.6), SCALANCE X204-2FM (All versions < V5.2.6), SCALANCE X204-2LD (All versions < V5.2.6), SCALANCE X204-2LD TS (All versions < V5.2.6), SCALANCE X204-2TS (All versions < V5.2.6), SCALANCE X204IRT (All versions), SCALANCE X204IRT (All versions), SCALANCE X204IRT PRO (All versions), SCALANCE X204IRT PRO (All versions), SCALANCE X206-1 (All versions < V5.2.6), SCALANCE X206-1LD (All versions < V5.2.6), SCALANCE X208 (All versions < V5.2.6), SCALANCE X208PRO (All versions < V5.2.6), SCALANCE X212-2 (All versions < V5.2.6), SCALANCE X212-2LD (All versions < V5.2.6), SCALANCE X216 (All versions < V5.2.6), SCALANCE X224 (All versions < V5.2.6), SCALANCE XF201-3P IRT (All versions), SCALANCE XF202-2P IRT (All versions), SCALANCE XF204 (All versions < V5.2.6), SCALANCE XF204-2 (All versions < V5.2.6), SCALANCE XF204-2BA IRT (All versions), SCALANCE XF204IRT (All versions), SCALANCE XF204IRT (All versions), SCALANCE XF206-1 (All versions < V5.2.6), SCALANCE XF208 (All versions < V5.2.6). The webserver of affected devices calculates session ids and nonces in an insecure manner. This could allow an unauthenticated remote attacker to brute-force session ids and hijack existing sessions.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2022-26647"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-12T10:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "A vulnerability has been identified in SCALANCE X200-4P IRT (All versions), SCALANCE X200-4P IRT (All versions), SCALANCE X201-3P IRT (All versions), SCALANCE X201-3P IRT (All versions), SCALANCE X201-3P IRT PRO (All versions), SCALANCE X201-3P IRT PRO (All versions), SCALANCE X202-2IRT (All versions), SCALANCE X202-2IRT (All versions), SCALANCE X202-2P IRT (All versions), SCALANCE X202-2P IRT (All versions), SCALANCE X202-2P IRT PRO (All versions), SCALANCE X202-2P IRT PRO (All versions), SCALANCE X204-2 (All versions \u003c V5.2.6), SCALANCE X204-2FM (All versions \u003c V5.2.6), SCALANCE X204-2LD (All versions \u003c V5.2.6), SCALANCE X204-2LD TS (All versions \u003c V5.2.6), SCALANCE X204-2TS (All versions \u003c V5.2.6), SCALANCE X204IRT (All versions), SCALANCE X204IRT (All versions), SCALANCE X204IRT PRO (All versions), SCALANCE X204IRT PRO (All versions), SCALANCE X206-1 (All versions \u003c V5.2.6), SCALANCE X206-1LD (All versions \u003c V5.2.6), SCALANCE X208 (All versions \u003c V5.2.6), SCALANCE X208PRO (All versions \u003c V5.2.6), SCALANCE X212-2 (All versions \u003c V5.2.6), SCALANCE X212-2LD (All versions \u003c V5.2.6), SCALANCE X216 (All versions \u003c V5.2.6), SCALANCE X224 (All versions \u003c V5.2.6), SCALANCE XF201-3P IRT (All versions), SCALANCE XF202-2P IRT (All versions), SCALANCE XF204 (All versions \u003c V5.2.6), SCALANCE XF204-2 (All versions \u003c V5.2.6), SCALANCE XF204-2BA IRT (All versions), SCALANCE XF204IRT (All versions), SCALANCE XF204IRT (All versions), SCALANCE XF206-1 (All versions \u003c V5.2.6), SCALANCE XF208 (All versions \u003c V5.2.6). The webserver of affected devices calculates session ids and nonces in an insecure manner. This could allow an unauthenticated remote attacker to brute-force session ids and hijack existing sessions.",
  "id": "GHSA-q6mm-xfgf-gjr7",
  "modified": "2022-07-16T00:00:24Z",
  "published": "2022-07-13T00:01:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26647"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-310038.pdf"
    }
  ],
  "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-Q723-847Q-5G8G

Vulnerability from github – Published: 2026-06-09 06:31 – Updated: 2026-06-09 06:31
VLAI
Details

IDs for WebSocket sessions in the spring-websocket module are not cryptographically unpredictable, which may be possible to exploit in combination with inadequate authorization rules.

Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

Severity
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-41838"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-09T05:16:35Z",
    "severity": "MODERATE"
  },
  "details": "IDs for WebSocket sessions in the spring-websocket module are not cryptographically unpredictable, which may be possible to exploit in combination with inadequate authorization rules.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.",
  "id": "GHSA-q723-847q-5g8g",
  "modified": "2026-06-09T06:31:57Z",
  "published": "2026-06-09T06:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41838"
    },
    {
      "type": "WEB",
      "url": "https://spring.io/security/cve-2026-41838"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-Q9RR-9M3C-3R79

Vulnerability from github – Published: 2022-05-24 17:48 – Updated: 2022-05-24 17:48
VLAI
Details

Automox Agent prior to version 31 uses an insufficiently protected S3 bucket endpoint for storing sensitive files, which could be brute-forced by an attacker to subvert an organization's security program. The issue has since been fixed in version 31 of the Automox Agent.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2021-26909"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-23T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Automox Agent prior to version 31 uses an insufficiently protected S3 bucket endpoint for storing sensitive files, which could be brute-forced by an attacker to subvert an organization\u0027s security program. The issue has since been fixed in version 31 of the Automox Agent.",
  "id": "GHSA-q9rr-9m3c-3r79",
  "modified": "2022-05-24T17:48:43Z",
  "published": "2022-05-24T17:48:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26909"
    },
    {
      "type": "WEB",
      "url": "https://community.automox.com/t/cve-2021-26908-and-cve-201-26909-automox-agent-information-disclosure-vulnerabilities-fixed/1955"
    },
    {
      "type": "WEB",
      "url": "https://www.rapid7.com/blog/post/2021/04/13/cve-2021-26908-and-cve-2021-26909-automox-agent-information-disclosure-fixed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-QGC9-3M4W-R9W2

Vulnerability from github – Published: 2022-11-10 19:01 – Updated: 2022-11-15 19:00
VLAI
Details

Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids. An unathenticated remote attacker can brute force the session id and gets access to an account on the the device.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2022-42787"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-10T12:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Multiple W\u0026T products of the Comserver Series use a small number space for allocating sessions ids. An unathenticated remote attacker can brute force the session id and gets access to an account on the the device.",
  "id": "GHSA-qgc9-3m4w-r9w2",
  "modified": "2022-11-15T19:00:52Z",
  "published": "2022-11-10T19:01:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42787"
    },
    {
      "type": "WEB",
      "url": "https://cert.vde.com/de/advisories/VDE-2022-043"
    }
  ],
  "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-QJ6H-M7XC-R2V3

Vulnerability from github – Published: 2022-05-17 02:57 – Updated: 2024-04-25 21:22
VLAI
Summary
Froxlor guessable password reset token
Details

Froxlor before 0.9.35 uses the PHP rand function for random number generation, which makes it easier for remote attackers to guess the password reset token by predicting a value.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "froxlor/froxlor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.35"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-5100"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-25T21:22:15Z",
    "nvd_published_at": "2017-02-13T18:59:00Z",
    "severity": "CRITICAL"
  },
  "details": "Froxlor before 0.9.35 uses the PHP rand function for random number generation, which makes it easier for remote attackers to guess the password reset token by predicting a value.",
  "id": "GHSA-qj6h-m7xc-r2v3",
  "modified": "2024-04-25T21:22:15Z",
  "published": "2022-05-17T02:57:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-5100"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Froxlor/Froxlor/commit/da4ec3e1b591de96675817a009e26e05e848a6ba"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Froxlor/Froxlor"
    }
  ],
  "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"
    }
  ],
  "summary": "Froxlor guessable password reset token"
}

GHSA-QP2P-3FR2-8J54

Vulnerability from github – Published: 2024-08-19 18:32 – Updated: 2024-08-20 18:31
VLAI
Details

Predictable seed generation in the security access mechanism of UDS in the Blind Spot Protection Sensor ECU in Nissan Altima (2022) allows attackers to predict the requested seeds and bypass security controls via repeated ECU resets and seed requests.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.3 (Medium)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/V:D/RE:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2024-6348"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-19T16:15:08Z",
    "severity": "MODERATE"
  },
  "details": "Predictable seed generation in the security access mechanism of UDS in the Blind Spot Protection Sensor ECU in Nissan Altima (2022) allows attackers to predict the requested seeds and bypass security controls via repeated ECU resets and seed requests.",
  "id": "GHSA-qp2p-3fr2-8j54",
  "modified": "2024-08-20T18:31:21Z",
  "published": "2024-08-19T18:32:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-6348"
    },
    {
      "type": "WEB",
      "url": "https://asrg.io/security-advisories"
    }
  ],
  "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"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/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:Y/R:X/V:D/RE:H/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-QP4F-2W67-C8HW

Vulnerability from github – Published: 2022-05-24 17:07 – Updated: 2022-12-16 22:56
VLAI
Summary
Inbound TCP Agent Protocol/3 authentication bypass in Jenkins
Details

Jenkins 2.213 and earlier, LTS 2.204.1 and earlier includes support for the Inbound TCP Agent Protocol/3 for communication between controller and agents. While this protocol has been deprecated in 2018 and was recently removed from Jenkins in 2.214, it could still easily be enabled in Jenkins LTS 2.204.1, 2.213, and older.

This protocol incorrectly reuses encryption parameters which allow an unauthenticated remote attacker to determine the connection secret. This secret can then be used to connect attacker-controlled Jenkins agents to the Jenkins controller.

Jenkins 2.204.2 no longer allows for the use of Inbound TCP Agent Protocol/3 by default. The system property jenkins.slaves.JnlpSlaveAgentProtocol3.ALLOW_UNSAFE can be set to true to allow enabling the Inbound TCP Agent Protocol/3 in Jenkins 2.204.2, but doing so is strongly discouraged.

Inbound TCP Agent Protocol/3 was removed completely from Jenkins 2.214 and will not be part of Jenkins LTS after the end of the 2.204.x line.

Severity
8.6 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.204.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.205"
            },
            {
              "fixed": "2.214"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-2099"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-323",
      "CWE-330"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-16T22:56:05Z",
    "nvd_published_at": "2020-01-29T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "Jenkins 2.213 and earlier, LTS 2.204.1 and earlier includes support for the Inbound TCP Agent Protocol/3 for communication between controller and agents. While [this protocol has been deprecated in 2018](https://www.jenkins.io/changelog-old/#v2.128) and was recently removed from Jenkins in 2.214, it could still easily be enabled in Jenkins LTS 2.204.1, 2.213, and older.\n\nThis protocol incorrectly reuses encryption parameters which allow an unauthenticated remote attacker to determine the connection secret. This secret can then be used to connect attacker-controlled Jenkins agents to the Jenkins controller.\n\nJenkins 2.204.2 no longer allows for the use of Inbound TCP Agent Protocol/3 by default. The system property `jenkins.slaves.JnlpSlaveAgentProtocol3.ALLOW_UNSAFE` can be set to `true` to allow enabling the Inbound TCP Agent Protocol/3 in Jenkins 2.204.2, but doing so is strongly discouraged.\n\nInbound TCP Agent Protocol/3 was removed completely from Jenkins 2.214 and will not be part of Jenkins LTS after the end of the 2.204.x line.",
  "id": "GHSA-qp4f-2w67-c8hw",
  "modified": "2022-12-16T22:56:05Z",
  "published": "2022-05-24T17:07:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-2099"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jenkinsci/jenkins/commit/5054bc6e12e1022993d719f66e289ab1d22ae854"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHBA-2020:0402"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHBA-2020:0675"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:0681"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:0683"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jenkinsci/jenkins"
    },
    {
      "type": "WEB",
      "url": "https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2020/01/29/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Inbound TCP Agent Protocol/3 authentication bypass in Jenkins"
}
Mitigation
Architecture and Design
  • Use a well-vetted algorithm that is currently considered to be strong by experts in the field, and select well-tested implementations with adequate length seeds.
  • In general, if a pseudo-random number generator is not advertised as being cryptographically secure, then it is probably a statistical PRNG and should not be used in security-sensitive contexts.
  • Pseudo-random number generators can produce predictable numbers if the generator is known and the seed can be guessed. A 256-bit seed is a good starting point for producing a "random enough" number.
Mitigation
Implementation

Consider a PRNG that re-seeds itself as needed from high quality pseudo-random output sources, such as hardware devices.

Mitigation MIT-2
Architecture and Design Requirements

Strategy: Libraries or Frameworks

Use products or modules that conform to FIPS 140-2 [REF-267] to avoid obvious entropy problems. Consult FIPS 140-2 Annex C ("Approved Random Number Generators").

CAPEC-112: Brute Force

In this attack, some asset (information, functionality, identity, etc.) is protected by a finite secret value. The attacker attempts to gain access to this asset by using trial-and-error to exhaustively explore all the possible secret values in the hope of finding the secret (or a value that is functionally equivalent) that will unlock the asset.

CAPEC-485: Signature Spoofing by Key Recreation

An attacker obtains an authoritative or reputable signer's private signature key by exploiting a cryptographic weakness in the signature algorithm or pseudorandom number generation and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.

CAPEC-59: Session Credential Falsification through Prediction

This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

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