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CVE-2023-31096

Estado: ModificadaAlta (7.8)—

An issue was discovered in Broadcom) LSI PCI-SV92EX Soft Modem Kernel Driver through 2.2.100.1 (aka AGRSM64.sys). There is Local Privilege Escalation to SYSTEM via a Stack Overflow in RTLCopyMemory (IOCTL 0x1b2150). An attacker can exploit this to elevate privileges from a medium-integrity process to SYSTEM. This can also be used to bypass kernel-level protections such as AV or PPL, because exploit code runs with high-integrity privileges and can be used in coordinated BYOVD (bring your own vulnerable driver) ransomware campaigns.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Broadcom — LSI Pci-sv92ex Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2023-31096",
  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
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              "automatable": "no"
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              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2024-09-19T14:02:57.765231Z"
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          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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  "affected": [
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  "vulnStatus": "Modified",
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      "value": "An issue was discovered in Broadcom) LSI PCI-SV92EX Soft Modem Kernel Driver through 2.2.100.1 (aka AGRSM64.sys). There is Local Privilege Escalation to SYSTEM via a Stack Overflow in RTLCopyMemory (IOCTL 0x1b2150). An attacker can exploit this to elevate privileges from a medium-integrity process to SYSTEM. This can also be used to bypass kernel-level protections such as AV or PPL, because exploit code runs with high-integrity privileges and can be used in coordinated BYOVD (bring your own vulnerable driver) ransomware campaigns."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en Broadcom) LSI PCI-SV92EX Soft Modem Kernel Driver hasta 2.2.100.1 (también conocido como AGRSM64.sys). Hay una escalada de privilegios local al SYSTEM a través de un desbordamiento de pila en RTLCopyMemory (IOCTL 0x1b2150). Un atacante puede aprovechar esto para elevar los privilegios de un proceso de integridad media al SYSTEM. Esto también se puede utilizar para omitir protecciones a nivel de kernel como AV o PPL, porque el código de explotación se ejecuta con privilegios de alta integridad y se puede utilizar en campañas coordinadas de ransomware BYOVD (traiga su propio controlador vulnerable)."
    }
  ],
  "lastModified": "2026-06-17T05:56:17.097",
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