github - ghsa-5jcx-7jcf-9fw2

GHSA-5JCX-7JCF-9FW2

Vulnerability from github – Published: 2025-05-07 18:30 – Updated: 2025-05-07 18:30

Details

A vulnerability in the bootstrap loading of Cisco IOS XE Software could allow an authenticated, local attacker to write arbitrary files to an affected system.

This vulnerability is due to insufficient input validation of the bootstrap file that is read by the system software when a device is first deployed in SD-WAN mode or when an administrator configures SD-Routing on the device. An attacker could exploit this vulnerability by modifying a bootstrap file generated by Cisco Catalyst SD-WAN Manager, loading it into the device flash, and then either reloading the device in a green field deployment in SD-WAN mode or configuring the device with SD-Routing. A successful exploit could allow the attacker to perform arbitrary file writes to the underlying operating system.

Severity ?

6.0 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2025-20155"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-07T18:15:37Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the bootstrap loading of Cisco IOS XE Software could allow an authenticated, local attacker to write arbitrary files to an affected system.\n\n This vulnerability is due to insufficient input validation of the bootstrap file that is read by the system software when a device is first deployed in SD-WAN mode or when an administrator configures SD-Routing on the device. An attacker could exploit this vulnerability by modifying a bootstrap file generated by Cisco Catalyst SD-WAN Manager, loading it into the device flash, and then either reloading the device in a green field deployment in SD-WAN mode or configuring the device with SD-Routing. A successful exploit could allow the attacker to perform arbitrary file writes to the underlying operating system.",
  "id": "GHSA-5jcx-7jcf-9fw2",
  "modified": "2025-05-07T18:30:48Z",
  "published": "2025-05-07T18:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20155"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootstrap-KfgxYgdh"
    }
  ],
  "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-2025-20155 (GCVE-0-2025-20155)

Vulnerability from cvelistv5 – Published: 2025-05-07 17:37 – Updated: 2025-05-08 03:56

Summary

A vulnerability in the bootstrap loading of Cisco IOS XE Software could allow an authenticated, local attacker to write arbitrary files to an affected system. This vulnerability is due to insufficient input validation of the bootstrap file that is read by the system software when a device is first deployed in SD-WAN mode or when an administrator configures SD-Routing on the device. An attacker could exploit this vulnerability by modifying a bootstrap file generated by Cisco Catalyst SD-WAN Manager, loading it into the device flash, and then either reloading the device in a green field deployment in SD-WAN mode or configuring the device with SD-Routing. A successful exploit could allow the attacker to perform arbitrary file writes to the underlying operating system.

Severity ?

6 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-1287 - Improper Validation of Specified Type of Input

Assigner

cisco

References

URL

Tags

https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XE Software	Affected: 17.9.4 Affected: 17.9.5 Affected: 17.9.4a Affected: 17.9.5a Affected: 17.9.5b Affected: 17.9.6 Affected: 17.9.6a Affected: 17.9.5e Affected: 17.9.5f Affected: 17.12.1 Affected: 17.12.1w Affected: 17.12.1a Affected: 17.12.1x Affected: 17.12.2 Affected: 17.12.3 Affected: 17.12.2a Affected: 17.12.1y Affected: 17.12.1z Affected: 17.12.4 Affected: 17.12.3a Affected: 17.12.1z1 Affected: 17.12.4a Affected: 17.12.4b Affected: 17.13.1 Affected: 17.13.1a Affected: 17.14.1 Affected: 17.14.1a Affected: 17.11.99SW

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-20155",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-07T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-08T03:56:34.728Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS XE Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "17.9.4"
            },
            {
              "status": "affected",
              "version": "17.9.5"
            },
            {
              "status": "affected",
              "version": "17.9.4a"
            },
            {
              "status": "affected",
              "version": "17.9.5a"
            },
            {
              "status": "affected",
              "version": "17.9.5b"
            },
            {
              "status": "affected",
              "version": "17.9.6"
            },
            {
              "status": "affected",
              "version": "17.9.6a"
            },
            {
              "status": "affected",
              "version": "17.9.5e"
            },
            {
              "status": "affected",
              "version": "17.9.5f"
            },
            {
              "status": "affected",
              "version": "17.12.1"
            },
            {
              "status": "affected",
              "version": "17.12.1w"
            },
            {
              "status": "affected",
              "version": "17.12.1a"
            },
            {
              "status": "affected",
              "version": "17.12.1x"
            },
            {
              "status": "affected",
              "version": "17.12.2"
            },
            {
              "status": "affected",
              "version": "17.12.3"
            },
            {
              "status": "affected",
              "version": "17.12.2a"
            },
            {
              "status": "affected",
              "version": "17.12.1y"
            },
            {
              "status": "affected",
              "version": "17.12.1z"
            },
            {
              "status": "affected",
              "version": "17.12.4"
            },
            {
              "status": "affected",
              "version": "17.12.3a"
            },
            {
              "status": "affected",
              "version": "17.12.1z1"
            },
            {
              "status": "affected",
              "version": "17.12.4a"
            },
            {
              "status": "affected",
              "version": "17.12.4b"
            },
            {
              "status": "affected",
              "version": "17.13.1"
            },
            {
              "status": "affected",
              "version": "17.13.1a"
            },
            {
              "status": "affected",
              "version": "17.14.1"
            },
            {
              "status": "affected",
              "version": "17.14.1a"
            },
            {
              "status": "affected",
              "version": "17.11.99SW"
            }
          ]
        }
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      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the bootstrap loading of Cisco IOS XE Software could allow an authenticated, local attacker to write arbitrary files to an affected system.\r\n\r This vulnerability is due to insufficient input validation of the bootstrap file that is read by the system software when a device is first deployed in SD-WAN mode or when an administrator configures SD-Routing on the device. An attacker could exploit this vulnerability by modifying a bootstrap file generated by Cisco Catalyst SD-WAN Manager, loading it into the device flash, and then either reloading the device in a green field deployment in SD-WAN mode or configuring the device with SD-Routing. A successful exploit could allow the attacker to perform arbitrary file writes to the underlying operating system."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (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": [
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              "description": "Improper Validation of Specified Type of Input",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-07T17:37:05.984Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-bootstrap-KfgxYgdh",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootstrap-KfgxYgdh"
        }
      ],
      "source": {
        "advisory": "cisco-sa-bootstrap-KfgxYgdh",
        "defects": [
          "CSCwj60286"
        ],
        "discovery": "INTERNAL"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2025-20155",
    "datePublished": "2025-05-07T17:37:05.984Z",
    "dateReserved": "2024-10-10T19:15:13.216Z",
    "dateUpdated": "2025-05-08T03:56:34.728Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

GHSA-5JCX-7JCF-9FW2

CVE-2025-20155 (GCVE-0-2025-20155)

Tags

Sightings

Nomenclature