FKIE_CVE-2025-42959

Vulnerability from fkie_nvd - Published: 2025-07-08 01:15 - Updated: 2025-07-08 16:18
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.
References
cna@sap.comhttps://me.sap.com/notes/3600846
cna@sap.comhttps://url.sap/sapsecuritypatchday
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability."
    },
    {
      "lang": "es",
      "value": "Un atacante no autenticado podr\u00eda explotar una situaci\u00f3n en la que una credencial de C\u00f3digo de Autenticaci\u00f3n de Mensajes Hash (HMAC), extra\u00edda de un sistema sin parches de seguridad espec\u00edficos, se reutiliza en un ataque de repetici\u00f3n contra otro sistema. Incluso si el sistema objetivo cuenta con todos los parches instalados, una explotaci\u00f3n exitosa podr\u00eda comprometer completamente el sistema, afectando la confidencialidad, la integridad y la disponibilidad."
    }
  ],
  "id": "CVE-2025-42959",
  "lastModified": "2025-07-08T16:18:14.207",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "cna@sap.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-07-08T01:15:22.477",
  "references": [
    {
      "source": "cna@sap.com",
      "url": "https://me.sap.com/notes/3600846"
    },
    {
      "source": "cna@sap.com",
      "url": "https://url.sap/sapsecuritypatchday"
    }
  ],
  "sourceIdentifier": "cna@sap.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-308"
        }
      ],
      "source": "cna@sap.com",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.