cve-2022-20676
Vulnerability from cvelistv5
Published
2022-04-15 14:16
Modified
2024-09-16 18:54
Severity ?
5.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
Summary
Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability
References
ykramarz@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-grbtubUVendor Advisory
Impacted products
CiscoCisco IOS XE Software
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T02:17:53.170Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20220413 Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-grbtubU"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS XE Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2022-04-13T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15."
        }
      ],
      "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": 5.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-250",
              "description": "CWE-250",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-04-15T14:16:53",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20220413 Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-grbtubU"
        }
      ],
      "source": {
        "advisory": "cisco-sa-iosxe-priv-esc-grbtubU",
        "defect": [
          [
            "CSCvy35833"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2022-04-13T16:00:00",
          "ID": "CVE-2022-20676",
          "STATE": "PUBLIC",
          "TITLE": "Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco IOS XE Software",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15."
            }
          ]
        },
        "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": "5.1",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-250"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20220413 Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-grbtubU"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-iosxe-priv-esc-grbtubU",
          "defect": [
            [
              "CSCvy35833"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2022-20676",
    "datePublished": "2022-04-15T14:16:53.321258Z",
    "dateReserved": "2021-11-02T00:00:00",
    "dateUpdated": "2024-09-16T18:54:55.467Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-20676\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2022-04-15T15:15:12.353\",\"lastModified\":\"2024-03-06T15:24:05.660\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en el int\u00e9rprete de Tool Command Language (Tcl) del software Cisco IOS XE podr\u00eda permitir a un atacante local autenticado escalar desde el nivel de privilegio 15 a privilegios de nivel root. Esta vulnerabilidad es debido a que no ha sido suficientemente la entrada de datos que son pasados al int\u00e9rprete Tcl. Un atacante podr\u00eda explotar esta vulnerabilidad cargando c\u00f3digo Tcl malicioso en un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante ejecutar comandos arbitrarios como root. Por defecto, el acceso al shell Tcl requiere un nivel de privilegio 15\"}],\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.7,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":0.8,\"impactScore\":5.9},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.1,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":0.8,\"impactScore\":4.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:C/I:C/A:C\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\",\"baseScore\":7.2},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":3.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-250\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:16.12.1z2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"46E37204-FC9A-4397-AFA4-9CAC7A116D55\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4B7EE7C7-D6C1-4C35-8C80-EAF3FC7E7EFA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B51FA707-8DB1-4596-9122-D4BFEF17F400\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C04DF35A-1B6F-420A-8D84-74EB41BF3700\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"211CC9B2-6108-4C50-AB31-DC527C43053E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.2.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"75CCB5F1-27F5-4FF9-8389-0A9ABCF7F070\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.2.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"08DCCBA3-82D2-4444-B5D3-E5FC58D024F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"128F95D7-E49F-4B36-8F47-823C0298449E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.1a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E21B3881-37E9-4C00-9336-12C9C28D1B61\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.1w:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E54599DB-A85E-4EEA-9985-2CBF90E28A08\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.1x:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4046C325-7EDB-4C95-AA98-541BEC8F9E0F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.1z:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E5B70A3D-CBE1-4218-A7B4-F85741A57BD7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2B270A04-9961-4E99-806B-441CD674AFBD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.2a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1360069D-0358-4746-8C3F-44C2A40988D7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C5DD2403-113B-4100-8BD4-90E1927E6648\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.3a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A35FFA44-9A59-4C20-9D86-C40B68BD5F77\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DAF73937-BCE2-4BEF-B4B0-83212DA4A6C8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.4a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2DDB1E60-C2A9-4570-BE80-F3D478A53738\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.4b:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9841799A-87E2-46AE-807A-824981EAB35A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.3.4c:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CEF022B-271F-4017-B74B-82748D5EBA01\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.4.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5A6B707B-4543-41F1-83DF-49A93BF56FB1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.4.1a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DC8F611B-D347-4A21-90E6-56CF4D8A35A3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.4.1b:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D9A92CE4-B4B0-4C14-AE11-8DFE511406F3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.4.1c:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"298C82F9-79A6-4DB7-8432-8B3A6DA39620\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.4.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"274E3E6F-4280-4EAE-B102-1BE57FE1F1D2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.4.2a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"46B52A51-51DB-4A12-AB1D-8D9605226599\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.5.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"938B0720-8CA7-43BA-9708-5CE9EC7A565A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.5.1a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D4BE7166-DBD3-4CE6-A14A-725FE896B85E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:17.5.1c:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BDEDC7A0-D031-433B-ABF5-4EC0A43D80CC\"}]}]}],\"references\":[{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-grbtubU\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.