CVE-2020-11635 (GCVE-0-2020-11635)

Vulnerability from cvelistv5 – Published: 2021-02-16 19:37 – Updated: 2024-08-04 11:35
VLAI
Summary
The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges.
CWE
  • Improper Privilege Management
References
URL Tags
https://trust.zscaler.com/posts/7316 x_refsource_MISC
Impacted products
Vendor Product Version CPE status
n/a Zscaler Client Connector for Windows Affected: < 3.1.0
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T11:35:13.634Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://trust.zscaler.com/posts/7316"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Zscaler Client Connector for Windows",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Improper Privilege Management",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-02-16T19:37:39.000Z",
        "orgId": "73c6f63b-efac-410d-a0a9-569700f85a04",
        "shortName": "Zscaler"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://trust.zscaler.com/posts/7316"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@zscaler.com",
          "ID": "CVE-2020-11635",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Zscaler Client Connector for Windows",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 3.1.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Improper Privilege Management"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://trust.zscaler.com/posts/7316",
              "refsource": "MISC",
              "url": "https://trust.zscaler.com/posts/7316"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "73c6f63b-efac-410d-a0a9-569700f85a04",
    "assignerShortName": "Zscaler",
    "cveId": "CVE-2020-11635",
    "datePublished": "2021-02-16T19:37:39.000Z",
    "dateReserved": "2020-04-08T00:00:00.000Z",
    "dateUpdated": "2024-08-04T11:35:13.634Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-11635",
      "date": "2026-10-02",
      "epss": "0.00444",
      "percentile": "0.36367"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*",
                  "matchCriteriaId": "8DA41D34-ECD0-41CE-B3B8-86CE19F58A32",
                  "versionEndExcluding": "3.1.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges."
        },
        {
          "lang": "es",
          "value": "Zscaler Client Connector versiones anteriores a 3.1.0, no comprobaba suficientemente los clientes RPC, lo que permite a un adversario local ejecutar c\u00f3digo con privilegios system o llevar a cabo acciones limitadas para las que no ten\u00eda privilegios"
        }
      ],
      "id": "CVE-2020-11635",
      "lastModified": "2024-11-21T04:58:17.873",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "HIGH",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "LOCAL",
              "authentication": "NONE",
              "availabilityImpact": "COMPLETE",
              "baseScore": 7.2,
              "confidentialityImpact": "COMPLETE",
              "integrityImpact": "COMPLETE",
              "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
              "version": "2.0"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 10.0,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 1.8,
            "impactScore": 5.9,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2021-02-16T20:15:15.487",
      "references": [
        {
          "source": "cve@zscaler.com",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://trust.zscaler.com/posts/7316"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://trust.zscaler.com/posts/7316"
        }
      ],
      "sourceIdentifier": "cve@zscaler.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "NVD-CWE-noinfo"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*",
                    "matchCriteriaId": "8DA41D34-ECD0-41CE-B3B8-86CE19F58A32",
                    "versionEndExcluding": "3.1.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges."
          },
          {
            "lang": "es",
            "value": "Zscaler Client Connector versiones anteriores a 3.1.0, no comprobaba suficientemente los clientes RPC, lo que permite a un adversario local ejecutar c\u00f3digo con privilegios system o llevar a cabo acciones limitadas para las que no ten\u00eda privilegios"
          }
        ],
        "id": "CVE-2020-11635",
        "lastModified": "2024-11-21T04:58:17.873",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 7.2,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 10.0,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-02-16T20:15:15.487",
        "references": [
          {
            "source": "cve@zscaler.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://trust.zscaler.com/posts/7316"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://trust.zscaler.com/posts/7316"
          }
        ],
        "sourceIdentifier": "cve@zscaler.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…