{
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                "id": "CVE-2025-20177",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "lang": "en",
          "value": "A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR image signature verification and load unverified software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the affected device.\r\n\r\nThis vulnerability is due to incomplete validation of files in the boot verification process. An attacker could exploit this vulnerability by manipulating the system configuration options to bypass some of the integrity checks that are performed during the boot process. A successful exploit could allow the attacker to control the boot configuration, which could enable them to bypass the requirement to run Cisco-signed images or alter the security properties of the running system.\r\nNote: Because exploitation of this vulnerability could result in the attacker bypassing Cisco image verification, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
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            "confidentialityImpact": "HIGH",
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      "providerMetadata": {
        "dateUpdated": "2025-03-12T16:13:04.362Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
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      "references": [
        {
          "name": "cisco-sa-ios-xr-verii-bypass-HhPwQRvx",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xr-verii-bypass-HhPwQRvx"
        },
        {
          "name": "Crafting endless AS-PATHS in BGP",
          "url": "https://blog.apnic.net/2024/09/02/crafting-endless-as-paths-in-bgp/"
        }
      ],
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        "advisory": "cisco-sa-ios-xr-verii-bypass-HhPwQRvx",
        "defects": [
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        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco IOS XR Software Image Verification Bypass Vulnerability"
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  },
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    "assignerShortName": "cisco",
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    "datePublished": "2025-03-12T16:13:04.362Z",
    "dateReserved": "2024-10-10T19:15:13.220Z",
    "dateUpdated": "2025-03-14T15:31:19.971Z",
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Nota: Dado que la explotaci\u00f3n de esta vulnerabilidad podr\u00eda provocar que el atacante omita la verificaci\u00f3n de la imagen de Cisco, Cisco ha elevado la calificaci\u00f3n de impacto de seguridad (SIR) de este aviso de media a 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Advisory\"]}]}}"
  }
}