github - ghsa-7g3p-mpgp-q5c5

GHSA-7G3P-MPGP-Q5C5

Vulnerability from github – Published: 2022-05-24 16:45 – Updated: 2023-03-24 18:30

Details

A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.

Severity ?

6.7 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2019-1809"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-05-15T23:29:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.",
  "id": "GHSA-7g3p-mpgp-q5c5",
  "modified": "2023-03-24T18:30:22Z",
  "published": "2022-05-24T16:45:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1809"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/108375"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2019-1809 (GCVE-0-2019-1809)

Vulnerability from cvelistv5 – Published: 2019-05-15 22:15 – Updated: 2024-11-20 17:19

Title

Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability

Summary

Severity ?

6.4 (Medium)


                        
                          CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-347

Assigner

cisco

References

URL

Tags

	https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
	http://www.securityfocus.com/bid/108375	vdb-entryx_refsource_BID

Impacted products

	Vendor	Product	Version
	Cisco	Cisco NX-OS Software	Affected: unspecified , < 8.3(1) (custom)

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T18:28:42.815Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20190515 Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb"
          },
          {
            "name": "108375",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/108375"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2019-1809",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-20T16:54:32.981622Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-20T17:19:35.902Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco NX-OS Software",
          "vendor": "Cisco",
          "versions": [
            {
              "lessThan": "8.3(1)",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
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      "descriptions": [
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          "lang": "en",
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        }
      ],
      "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."
        }
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      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
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      "providerMetadata": {
        "dateUpdated": "2019-05-20T14:06:08",
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      "references": [
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          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb"
        },
        {
          "name": "108375",
          "tags": [
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            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/108375"
        }
      ],
      "source": {
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        "defect": [
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            "CSCvj12239"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2019-05-15T16:00:00-0700",
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          "STATE": "PUBLIC",
          "TITLE": "Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability"
        },
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                      "version": {
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                            "version_affected": "\u003c",
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                "vendor_name": "Cisco"
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        },
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            },
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}

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.

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GHSA-7G3P-MPGP-Q5C5

CVE-2019-1809 (GCVE-0-2019-1809)

Tags

Sightings

Nomenclature