github - ghsa-q9rh-69gg-78fc

ghsa-q9rh-69gg-78fc

Vulnerability from github

Published

2025-09-10 18:30

Modified

2025-09-10 18:30

Severity ?

6.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Details

A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification and load unsigned software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the affected device.

This vulnerability is due to incomplete validation of files during the installation of an .iso file. An attacker could exploit this vulnerability by modifying contents of the .iso image and then installing and activating it on the device. A successful exploit could allow the attacker to load an unsigned file as part of the image activation process.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-20248"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-10T16:15:36Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification and load unsigned software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the affected device.\n\nThis vulnerability is due to incomplete validation of files during the installation of an .iso file. An attacker could exploit this vulnerability by modifying contents of the .iso image and then installing and activating it on the device. A successful exploit could allow the attacker to load an unsigned file as part of the image activation process.",
  "id": "GHSA-q9rh-69gg-78fc",
  "modified": "2025-09-10T18:30:15Z",
  "published": "2025-09-10T18:30:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20248"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xrsig-UY4zRUCG"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2025-20248

Vulnerability from cvelistv5

Published

2025-09-10 16:06

Modified

2025-09-11 03:56

Severity ?

6.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Summary

Cisco IOS XR Software Image Verification Bypass Vulnerability

References

▼	URL	Tags
	https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xrsig-UY4zRUCG

Impacted products

▼	Vendor	Product
	Cisco	Cisco IOS XR Software

Show details on NVD website

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-20248",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-10T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-11T03:56:26.379Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco IOS XR Software",
          "vendor": "Cisco",
          "versions": [
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              "version": "6.5.3"
            },
            {
              "status": "affected",
              "version": "6.5.29"
            },
            {
              "status": "affected",
              "version": "6.5.1"
            },
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              "version": "6.6.1"
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              "version": "6.5.25"
            },
            {
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            },
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            {
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              "version": "6.7.1"
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            },
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              "version": "7.4.15"
            },
            {
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              "version": "6.5.32"
            },
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              "status": "affected",
              "version": "7.3.2"
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            {
              "status": "affected",
              "version": "7.5.1"
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              "version": "7.4.16"
            },
            {
              "status": "affected",
              "version": "7.3.27"
            },
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              "status": "affected",
              "version": "7.6.1"
            },
            {
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            },
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            },
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              "version": "7.3.3"
            },
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            },
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            },
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              "status": "affected",
              "version": "7.3.4"
            },
            {
              "status": "affected",
              "version": "7.4.2"
            },
            {
              "status": "affected",
              "version": "6.7.35"
            },
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              "version": "6.9.1"
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              "version": "7.6.2"
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            {
              "status": "affected",
              "version": "7.5.3"
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            {
              "status": "affected",
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              "status": "affected",
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              "version": "6.5.33"
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            {
              "status": "affected",
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            {
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            },
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              "version": "24.1.1"
            },
            {
              "status": "affected",
              "version": "7.3.6"
            },
            {
              "status": "affected",
              "version": "7.11.2"
            },
            {
              "status": "affected",
              "version": "24.2.1"
            },
            {
              "status": "affected",
              "version": "24.1.2"
            },
            {
              "status": "affected",
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            },
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              "status": "affected",
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            },
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              "status": "affected",
              "version": "24.4.1"
            },
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              "status": "affected",
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            },
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              "status": "affected",
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            },
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              "status": "affected",
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            },
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            },
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            },
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification and load unsigned 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 during the installation of an .iso file. An attacker could exploit this vulnerability by modifying contents of the .iso image and then installing and activating it on the device. A successful exploit could allow the attacker to load an unsigned file as part of the image activation process."
        }
      ],
      "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "Improper Verification of Cryptographic Signature",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-10T16:06:49.860Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-xrsig-UY4zRUCG",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xrsig-UY4zRUCG"
        }
      ],
      "source": {
        "advisory": "cisco-sa-xrsig-UY4zRUCG",
        "defects": [
          "CSCwm03455"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco IOS XR Software Image Verification Bypass Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2025-20248",
    "datePublished": "2025-09-10T16:06:49.860Z",
    "dateReserved": "2024-10-10T19:15:13.238Z",
    "dateUpdated": "2025-09-11T03:56:26.379Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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