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Common Weakness Enumeration

CWE-331

Allowed

Insufficient Entropy

Abstraction: Base · Status: Draft

The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

227 vulnerabilities reference this CWE, most recent first.

GHSA-5844-Q3FC-56RH

Vulnerability from github – Published: 2023-12-06 06:30 – Updated: 2025-07-22 15:14
VLAI
Summary
pubnub Insufficient Entropy vulnerability
Details

Versions of the package pubnub before 7.4.0; all versions of the package com.pubnub:pubnub; versions of the package pubnub before 6.19.0; all versions of the package github.com/pubnub/go; versions of the package github.com/pubnub/go/v7 before 7.2.0; versions of the package pubnub before 7.3.0; versions of the package pubnub/pubnub before 6.1.0; versions of the package pubnub before 5.3.0; versions of the package pubnub before 0.4.0; versions of the package pubnub/c-core before 4.5.0; versions of the package com.pubnub:pubnub-kotlin before 7.7.0; versions of the package pubnub/swift before 6.2.0; versions of the package pubnub before 5.2.0; versions of the package pubnub before 4.3.0 are vulnerable to Insufficient Entropy via the getKey function, due to inefficient implementation of the AES-256-CBC cryptographic algorithm. The provided encrypt function is less secure when hex encoding and trimming are applied, leaving half of the bits in the key always the same for every encoded message or file.

Note:

In order to exploit this vulnerability, the attacker needs to invest resources in preparing the attack and brute-force the encryption.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "pubnub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.pubnub:pubnub-kotlin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.pubnub:pubnub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "4.6.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/pubnub/go/v7"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/pubnub/go"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20231016150651-428517fef5b9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/pubnub/go/v6"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.1-0.20231016150651-428517fef5b9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/pubnub/go/v5"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.0.4-0.20231016150651-428517fef5b9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "Pubnub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.19.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "SwiftURL",
        "name": "github.com/pubnub/swift"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "pubnub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "pubnub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "pubnub/pubnub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Pub",
        "name": "pubnub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pubnub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-26154"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-12-06T16:55:26Z",
    "nvd_published_at": "2023-12-06T05:15:10Z",
    "severity": "MODERATE"
  },
  "details": "Versions of the package pubnub before 7.4.0; all versions of the package com.pubnub:pubnub; versions of the package pubnub before 6.19.0; all versions of the package github.com/pubnub/go; versions of the package github.com/pubnub/go/v7 before 7.2.0; versions of the package pubnub before 7.3.0; versions of the package pubnub/pubnub before 6.1.0; versions of the package pubnub before 5.3.0; versions of the package pubnub before 0.4.0; versions of the package pubnub/c-core before 4.5.0; versions of the package com.pubnub:pubnub-kotlin before 7.7.0; versions of the package pubnub/swift before 6.2.0; versions of the package pubnub before 5.2.0; versions of the package pubnub before 4.3.0 are vulnerable to Insufficient Entropy via the getKey function, due to inefficient implementation of the AES-256-CBC cryptographic algorithm. The provided encrypt function is less secure when hex encoding and trimming are applied, leaving half of the bits in the key always the same for every encoded message or file.\n\n**Note:**\n\nIn order to exploit this vulnerability, the attacker needs to invest resources in preparing the attack and brute-force the encryption.",
  "id": "GHSA-5844-q3fc-56rh",
  "modified": "2025-07-22T15:14:55Z",
  "published": "2023-12-06T06:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26154"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pubnub/go/commit/428517fef5b901db7275d9f5a75eda89a4c28e08"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pubnub/javascript/commit/fb6cd0417cbb4ba87ea2d5d86a9c94774447e119"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-UNMANAGED-PUBNUBCCORE-6098379"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-SWIFT-PUBNUBSWIFT-6098381"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-RUST-PUBNUB-6098378"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-RUBY-PUBNUB-6098377"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-PYTHON-PUBNUB-6098375"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-PUB-PUBNUB-6098385"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-PHP-PUBNUBPUBNUB-6098376"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JS-PUBNUB-5840690"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JAVA-COMPUBNUB-6098380"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JAVA-COMPUBNUB-6098371"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPUBNUBGOV7-6098374"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPUBNUBGO-6098373"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-DOTNET-PUBNUB-6098372"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-COCOAPODS-PUBNUB-6098384"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/pubnub/CVE-2023-26154.yml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pubnub/javascript/blob/master/src/crypto/modules/web.js#L70"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pubnub/javascript"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-5844-q3fc-56rh"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/vargad/20237094fce7a0a28f0723d7ce395bb0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "pubnub Insufficient Entropy vulnerability"
}

GHSA-5C3C-76CF-7HHM

Vulnerability from github – Published: 2021-12-21 00:00 – Updated: 2022-01-04 00:01
VLAI
Details

A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-42138"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-20T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.",
  "id": "GHSA-5c3c-76cf-7hhm",
  "modified": "2022-01-04T00:01:25Z",
  "published": "2021-12-21T00:00:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42138"
    },
    {
      "type": "WEB",
      "url": "https://cpl.thalesgroup.com/support/security-updates"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.gemalto.com/csm?sys_kb_id=a52bd13adbff7010f0e322080596194a\u0026id=kb_article_view\u0026sysparm_rank=1\u0026sysparm_tsqueryId=b3bdd932db33b010f0e3220805961955"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.gemalto.com/csm?sys_kb_id=e8397662dbb7fc10520c4705059619eb\u0026id=kb_article_view\u0026sysparm_rank=2\u0026sysparm_tsqueryId=b3bdd932db33b010f0e3220805961955"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-5Q94-JXWQ-FQFX

Vulnerability from github – Published: 2022-05-24 17:19 – Updated: 2024-04-04 02:54
VLAI
Details

The Bluetooth Low Energy implementation in Cypress PSoC Creator BLE 4.2 component versions before 3.64 generates a random number (Pairing Random) with significantly less entropy than the specified 128 bits during BLE pairing. This is the case for both authenticated and unauthenticated pairing with both LE Secure Connections as well as LE Legacy Pairing. A predictable or brute-forceable random number allows an attacker (in radio range) to perform a MITM attack during BLE pairing.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-11957"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-06-09T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "The Bluetooth Low Energy implementation in Cypress PSoC Creator BLE 4.2 component versions before 3.64 generates a random number (Pairing Random) with significantly less entropy than the specified 128 bits during BLE pairing. This is the case for both authenticated and unauthenticated pairing with both LE Secure Connections as well as LE Legacy Pairing. A predictable or brute-forceable random number allows an attacker (in radio range) to perform a MITM attack during BLE pairing.",
  "id": "GHSA-5q94-jxwq-fqfx",
  "modified": "2024-04-04T02:54:20Z",
  "published": "2022-05-24T17:19:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11957"
    },
    {
      "type": "WEB",
      "url": "https://www.cypress.com/file/504466/download"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5V8G-FFGQ-6FQ9

Vulnerability from github – Published: 2026-08-19 21:30 – Updated: 2026-08-19 21:30
VLAI
Details

IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 could allow a local attacker with administrative privileges to decrypt encrypted data due to certain hypervisor calls utilizing less entropy than requested.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-4937"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-19T21:16:55Z",
    "severity": "MODERATE"
  },
  "details": "IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 could allow a local attacker with administrative privileges to decrypt encrypted data due to certain hypervisor calls utilizing less entropy than requested.",
  "id": "GHSA-5v8g-ffgq-6fq9",
  "modified": "2026-08-19T21:30:38Z",
  "published": "2026-08-19T21:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4937"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7283900"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5VFX-VPJ9-7JVR

Vulnerability from github – Published: 2022-05-13 01:37 – Updated: 2022-05-13 01:37
VLAI
Details

An Insufficient Entropy issue was discovered in LOYTEC LVIS-3ME versions prior to 6.2.0. The application does not utilize sufficiently random number generation for the web interface authentication mechanism, which could allow remote code execution.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-13992"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-10-05T21:29:00Z",
    "severity": "HIGH"
  },
  "details": "An Insufficient Entropy issue was discovered in LOYTEC LVIS-3ME versions prior to 6.2.0. The application does not utilize sufficiently random number generation for the web interface authentication mechanism, which could allow remote code execution.",
  "id": "GHSA-5vfx-vpj9-7jvr",
  "modified": "2022-05-13T01:37:43Z",
  "published": "2022-05-13T01:37:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13992"
    },
    {
      "type": "WEB",
      "url": "https://ics-cert.us-cert.gov/advisories/ICSA-17-257-01"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/100847"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5W7Q-MMR4-39PJ

Vulnerability from github – Published: 2026-09-08 09:35 – Updated: 2026-09-08 09:35
VLAI
Details

A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A session identifier is generated using an algorithm with insufficient randomness, resulting in a token with low entropy that can be predicted or brute-forced within a feasible number of attempts. This could allow an unauthenticated remote attacker to derive valid session identifiers and bypass authentication.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-62646"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-08T09:18:16Z",
    "severity": "CRITICAL"
  },
  "details": "A vulnerability has been identified in Reyrolle 7SR5 (All versions \u003c V2.70). A session identifier is generated using an algorithm with insufficient randomness, resulting in a token with low entropy that can be predicted or brute-forced within a feasible number of attempts. This could allow an unauthenticated remote attacker to derive valid session identifiers and bypass authentication.",
  "id": "GHSA-5w7q-mmr4-39pj",
  "modified": "2026-09-08T09:35:38Z",
  "published": "2026-09-08T09:35:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62646"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-142885.html"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/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:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-5WJ2-44XM-2HRQ

Vulnerability from github – Published: 2026-08-03 21:31 – Updated: 2026-08-07 15:33
VLAI
Details

A cryptographic weakness exists in the Omada adoption protocol where session encryption keys used to protect communications between controllers and managed devices may be predictable due to insufficient entropy in session key generation.

An attacker who successfully intercepts adoption-related communications may be able to recover session encryption keys and decrypt affected communications.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-15629"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-03T19:16:40Z",
    "severity": "MODERATE"
  },
  "details": "A cryptographic\nweakness exists in the Omada adoption protocol where session encryption keys\nused to protect communications between controllers and managed devices may be\npredictable due to insufficient entropy in session key generation.\n\n\n\n\n\n\n\n\n\nAn attacker\nwho successfully intercepts adoption-related communications may be able to recover\nsession encryption keys and decrypt affected communications.",
  "id": "GHSA-5wj2-44xm-2hrq",
  "modified": "2026-08-07T15:33:04Z",
  "published": "2026-08-03T21:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15629"
    },
    {
      "type": "WEB",
      "url": "https://www.omadanetworks.com/en/support/download"
    },
    {
      "type": "WEB",
      "url": "https://www.omadanetworks.com/us/support/download"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5216"
    }
  ],
  "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:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/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:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-63M6-FQGG-RV45

Vulnerability from github – Published: 2022-05-24 17:12 – Updated: 2023-08-31 03:30
VLAI
Details

It's possible that an authenticated user guess other session IDs based on its own. Also it's possible to guess a password reset token or an automated password generated. This issue affects ((OTRS)) Community Edition: 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS; 7.0.15 and prior versions.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-1773"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-03-27T13:15:00Z",
    "severity": "MODERATE"
  },
  "details": "It\u0027s possible that an authenticated user guess other session IDs based on its own. Also it\u0027s possible to guess a password reset token or an automated password generated. This issue affects ((OTRS)) Community Edition: 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS; 7.0.15 and prior versions.",
  "id": "GHSA-63m6-fqgg-rv45",
  "modified": "2023-08-31T03:30:36Z",
  "published": "2022-05-24T17:12:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1773"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html"
    },
    {
      "type": "WEB",
      "url": "https://otrs.com/release-notes/otrs-security-advisory-2020-10"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00038.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00066.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00077.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:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-64QF-4R7V-W6J5

Vulnerability from github – Published: 2022-11-16 12:00 – Updated: 2022-11-21 15:30
VLAI
Details

A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to access sensitive information. This vulnerability is due to missing authorization for certain resources in the web-based management interface together with insufficient entropy in these resource names. An attacker could exploit this vulnerability by sending a series of HTTPS requests to an affected device to enumerate resources on the device. A successful exploit could allow the attacker to retrieve sensitive information from the device.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-20941"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330",
      "CWE-331",
      "CWE-334"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-15T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to access sensitive information. This vulnerability is due to missing authorization for certain resources in the web-based management interface together with insufficient entropy in these resource names. An attacker could exploit this vulnerability by sending a series of HTTPS requests to an affected device to enumerate resources on the device. A successful exploit could allow the attacker to retrieve sensitive information from the device.",
  "id": "GHSA-64qf-4r7v-w6j5",
  "modified": "2022-11-21T15:30:21Z",
  "published": "2022-11-16T12:00:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-20941"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-info-disc-UghNRRhP"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-info-disc-UghNRRhP"
    }
  ],
  "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-6CPX-55PW-9CXQ

Vulnerability from github – Published: 2025-03-24 21:30 – Updated: 2025-03-26 15:32
VLAI
Details

Limited secret space in LLDP packets used in onos v2.7.0 allows attackers to obtain the private key via a bruteforce attack. Attackers are able to leverage this vulnerability into creating crafted LLDP packets.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-29311"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-24T21:15:18Z",
    "severity": "HIGH"
  },
  "details": "Limited secret space in LLDP packets used in onos v2.7.0 allows attackers to obtain the private key via a bruteforce attack. Attackers are able to leverage this vulnerability into creating crafted LLDP packets.",
  "id": "GHSA-6cpx-55pw-9cxq",
  "modified": "2025-03-26T15:32:36Z",
  "published": "2025-03-24T21:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29311"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/Saber-Berserker/790f2a75ae482df3fd0fce569f30504a;"
    }
  ],
  "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"
    }
  ]
}

Mitigation
Implementation

Determine the necessary entropy to adequately provide for randomness and predictability. This can be achieved by increasing the number of bits of objects such as keys and seeds.

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.