CVE-2019-1730 (GCVE-0-2019-1730)

Vulnerability from cvelistv5 – Published: 2019-05-15 16:50 – Updated: 2024-11-21 19:30
VLAI
Title
Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability
Summary
A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to bypass the limited command set of the restricted Guest Shell and execute commands at the privilege level of a network-admin user outside of the Guest Shell. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to the incorrect implementation of a CLI command that allows a Bash command to be incorrectly invoked on the Guest Shell CLI. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Guest Shell prompt. A successful exploit could allow the attacker to issue commands that should be restricted by a Guest Shell account.
Severity
6 (Medium)
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
http://www.securityfocus.com/bid/108397 vdb-entryx_refsource_BID
Impacted products
Vendor Product Version
Cisco Cisco NX-OS Software Affected: unspecified , < 8.3(1) (custom)
Create a notification for this product.
Date Public
2019-05-15 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T18:28:42.051Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20190515 Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass"
          },
          {
            "name": "108397",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/108397"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2019-1730",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-21T18:58:38.466792Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-21T19:30:45.299Z",
          "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"
            }
          ]
        }
      ],
      "datePublic": "2019-05-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to bypass the limited command set of the restricted Guest Shell and execute commands at the privilege level of a network-admin user outside of the Guest Shell. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to the incorrect implementation of a CLI command that allows a Bash command to be incorrectly invoked on the Guest Shell CLI. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Guest Shell prompt. A successful exploit could allow the attacker to issue commands that should be restricted by a Guest Shell account."
        }
      ],
      "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_0": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-264",
              "description": "CWE-264",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-05-21T13:06:05.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20190515 Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass"
        },
        {
          "name": "108397",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/108397"
        }
      ],
      "source": {
        "advisory": "cisco-sa-20190515-nxos-bash-bypass",
        "defect": [
          [
            "CSCvh76090",
            "CSCvj01472",
            "CSCvj01497"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2019-05-15T16:00:00-0700",
          "ID": "CVE-2019-1730",
          "STATE": "PUBLIC",
          "TITLE": "Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco NX-OS Software",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
                            "version_value": "8.3(1)"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to bypass the limited command set of the restricted Guest Shell and execute commands at the privilege level of a network-admin user outside of the Guest Shell. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to the incorrect implementation of a CLI command that allows a Bash command to be incorrectly invoked on the Guest Shell CLI. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Guest Shell prompt. A successful exploit could allow the attacker to issue commands that should be restricted by a Guest Shell account."
            }
          ]
        },
        "exploit": [
          {
            "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."
          }
        ],
        "impact": {
          "cvss": {
            "baseScore": "6.0",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-264"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20190515 Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass"
            },
            {
              "name": "108397",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/108397"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-20190515-nxos-bash-bypass",
          "defect": [
            [
              "CSCvh76090",
              "CSCvj01472",
              "CSCvj01497"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2019-1730",
    "datePublished": "2019-05-15T16:50:43.974Z",
    "dateReserved": "2018-12-06T00:00:00.000Z",
    "dateUpdated": "2024-11-21T19:30:45.299Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2019-1730",
      "date": "2026-07-23",
      "epss": "0.00398",
      "percentile": "0.32384"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-1730\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2019-05-15T17:29:01.717\",\"lastModified\":\"2024-11-21T04:37:11.850\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to bypass the limited command set of the restricted Guest Shell and execute commands at the privilege level of a network-admin user outside of the Guest Shell. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to the incorrect implementation of a CLI command that allows a Bash command to be incorrectly invoked on the Guest Shell CLI. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Guest Shell prompt. A successful exploit could allow the attacker to issue commands that should be restricted by a Guest Shell account.\"},{\"lang\":\"es\",\"value\":\"na vulnerabilidad en la implementaci\u00f3n Bash Shell para el software NX-OS de Cisco,  podr\u00eda permitir a un atacante local autentificado omitir el conjunto de comandos limitados del Guest Shell y ejecutar comandos en el nivel de privilegio de un usuario administrador de la red fuera del Guest Shell. El atacante necesita autenticarse con credenciales de dispositivo de administrador v\u00e1lidas. La vulnerabilidad es debido a la implementaci\u00f3n inapropiada de un comando de la CLI que permite que se invoque inapropiadamente un comando Bash en la CLI del Guest Shell. Un atacante podr\u00eda explotar esta vulnerabilidad autentific\u00e1ndose en el dispositivo e introduciendo un comando creado en el indicador del Guest Shell. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante enviar comandos que deber\u00edan ser restringidos para una cuenta de Guest Shell.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":6.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":5.9}],\"cvssMetricV30\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H\",\"baseScore\":6.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":5.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":7.2,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":3.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-264\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.0\\\\(3\\\\)i4\",\"versionEndExcluding\":\"7.0\\\\(3\\\\)i4\\\\(9\\\\)\",\"matchCriteriaId\":\"3DFCC3C2-3483-4BD0-AF71-23574D0849B1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.0\\\\(3\\\\)i7\",\"versionEndExcluding\":\"7.0\\\\(3\\\\)i7\\\\(4\\\\)\",\"matchCriteriaId\":\"EF06D835-FBE6-4866-B410-C2F66AEF68CD\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"10FFC5E8-CC5A-4D31-A63A-19E72EC442AB\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3100:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"41C14CC9-C244-4B86-AEA6-C50BAD5DA9A6\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3100-z:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D14D4B4E-120E-4607-A4F1-447C7BF3052E\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3100v:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"15702ACB-29F3-412D-8805-E107E0729E35\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3200:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"32A532C0-B0E3-484A-B356-88970E7D0248\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3400:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"43913A0E-50D5-47DD-94D8-DD3391633619\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A8E1073F-D374-4311-8F12-AD8C72FAA293\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3524-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"10F80A72-AD54-4699-B8AE-82715F0B58E2\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3524-xl:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9354B6A2-D7D6-442E-BF4C-FE8A336D9E94\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3548-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"74CB4002-7636-4382-B33E-FBA060A13C34\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3548-xl:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"10CEBF73-3EE0-459A-86C5-F8F6243FE27C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9000v:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CD9C1F1-8582-4F67-A77D-97CBFECB88B8\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4283E433-7F8C-4410-B565-471415445811\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_92300yc:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F80AB6FB-32FD-43D7-A9F1-80FA47696210\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_92304qc:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D5B2E4C1-2627-4B9D-8E92-4B483F647651\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_92348gc-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"557ED31C-C26A-4FAE-8B14-D06B49F7F08B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9236c:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"11411BFD-3F4D-4309-AB35-A3629A360FB0\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9272q:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E663DE91-C86D-48DC-B771-FA72A8DF7A7C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A90184B3-C82F-4CE5-B2AD-97D5E4690871\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93108tc-fx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4AB89849-6DA4-4C9D-BC3F-EE0E41FD1901\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07DE6F63-2C7D-415B-8C34-01EC05C062F3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F423E45D-A6DD-4305-9C6A-EAB26293E53A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E952A96A-0F48-4357-B7DD-1127D8827650\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F70D81F1-8B12-4474-9060-B4934D8A3873\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-fx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7349D69B-D8FA-4462-AA28-69DD18A652D9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93216tc-fx2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B1CC5F78-E88B-4B82-9E3E-C73D3A49DE26\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93240yc-fx2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"91231DC6-2773-4238-8C14-A346F213B5E5\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9332c:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2DF88547-BAF4-47B0-9F60-80A30297FCEB\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"113772B6-E9D2-4094-9468-3F4E1A87D07D\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93360yc-fx2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C45A38D6-BED6-4FEF-AD87-A1E813695DE0\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9336c-fx2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F1FC2B1F-232E-4754-8076-CC82F3648730\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9336pq_aci_spine:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"785FD17C-F32E-4042-9DDE-A89B3AAE0334\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9348gc-fxp:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"17C7E3DB-8E1A-47AD-B1C5-61747DC0CFB9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9364c:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"63842B25-8C32-4988-BBBD-61E9CB09B4F3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4364ADB9-8162-451D-806A-B98924E6B2CF\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B53BCB42-ED61-4FCF-8068-CB467631C63C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"49E0371B-FDE2-473C-AA59-47E1269D050F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"489D11EC-5A18-4F32-BC7C-AC1FCEC27222\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1BC5293E-F2B4-46DC-85DA-167EA323FCFD\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EA022E77-6557-4A33-9A3A-D028E2DB669A\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.1\",\"versionEndExcluding\":\"8.3\\\\(1\\\\)\",\"matchCriteriaId\":\"32DEA700-FD52-4AFE-9E32-21808F184033\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"12180BEB-7F21-4FA7-ABD2-E9A8EA7340F3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DD7A4B4B-3BB1-4A4D-911E-C4EEF01BBC45\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.0\\\\(3\\\\)\",\"versionEndExcluding\":\"7.0\\\\(3\\\\)f3\\\\(5\\\\)\",\"matchCriteriaId\":\"96BFEE5D-EF9F-4C21-BC51-FBA71029A6A7\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_36180yc-r:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"95D2C4C3-65CE-4612-A027-AF70CEFC3233\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_3636c-r:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"57572E4A-78D5-4D1A-938B-F05F01759612\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"768BE390-5ED5-48A7-9E80-C4DE8BA979B1\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DDC2F709-AFBE-48EA-A3A2-DA1134534FB6\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7E02DC82-0D26-436F-BA64-73C958932B0A\"}]}]}],\"references\":[{\"url\":\"http://www.securityfocus.com/bid/108397\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/108397\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass\", \"name\": \"20190515 Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\", \"x_transferred\"]}, {\"url\": \"http://www.securityfocus.com/bid/108397\", \"name\": \"108397\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T18:28:42.051Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2019-1730\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-21T18:58:38.466792Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-21T19:00:05.840Z\"}}], \"cna\": {\"title\": \"Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability\", \"source\": {\"defect\": [[\"CSCvh76090\", \"CSCvj01472\", \"CSCvj01497\"]], \"advisory\": \"cisco-sa-20190515-nxos-bash-bypass\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"cvssV3_0\": {\"scope\": \"UNCHANGED\", \"version\": \"3.0\", \"baseScore\": 6, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco NX-OS Software\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"8.3(1)\", \"versionType\": \"custom\"}]}], \"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.\"}], \"datePublic\": \"2019-05-15T00:00:00.000Z\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass\", \"name\": \"20190515 Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\"]}, {\"url\": \"http://www.securityfocus.com/bid/108397\", \"name\": \"108397\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to bypass the limited command set of the restricted Guest Shell and execute commands at the privilege level of a network-admin user outside of the Guest Shell. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to the incorrect implementation of a CLI command that allows a Bash command to be incorrectly invoked on the Guest Shell CLI. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Guest Shell prompt. A successful exploit could allow the attacker to issue commands that should be restricted by a Guest Shell account.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-264\", \"description\": \"CWE-264\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2019-05-21T13:06:05.000Z\"}, \"x_legacyV4Record\": {\"impact\": {\"cvss\": {\"version\": \"3.0\", \"baseScore\": \"6.0\", \"vectorString\": \"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H\"}}, \"source\": {\"defect\": [[\"CSCvh76090\", \"CSCvj01472\", \"CSCvj01497\"]], \"advisory\": \"cisco-sa-20190515-nxos-bash-bypass\", \"discovery\": \"INTERNAL\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"affected\": \"\u003c\", \"version_value\": \"8.3(1)\", \"version_affected\": \"\u003c\"}]}, \"product_name\": \"Cisco NX-OS Software\"}]}, \"vendor_name\": \"Cisco\"}]}}, \"exploit\": [{\"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.\"}], \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass\", \"name\": \"20190515 Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability\", \"refsource\": \"CISCO\"}, {\"url\": \"http://www.securityfocus.com/bid/108397\", \"name\": \"108397\", \"refsource\": \"BID\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to bypass the limited command set of the restricted Guest Shell and execute commands at the privilege level of a network-admin user outside of the Guest Shell. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to the incorrect implementation of a CLI command that allows a Bash command to be incorrectly invoked on the Guest Shell CLI. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Guest Shell prompt. A successful exploit could allow the attacker to issue commands that should be restricted by a Guest Shell account.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-264\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2019-1730\", \"STATE\": \"PUBLIC\", \"TITLE\": \"Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability\", \"ASSIGNER\": \"psirt@cisco.com\", \"DATE_PUBLIC\": \"2019-05-15T16:00:00-0700\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2019-1730\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-21T19:30:45.299Z\", \"dateReserved\": \"2018-12-06T00:00:00.000Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2019-05-15T16:50:43.974Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.