Vulnerability-Lookup

CNVD-2021-31929

Vulnerability from cnvd - Published: 2021-04-30

Title

DUO Authentication Proxy存在未明漏洞

Description

DUO Authentication Proxy是美国DUO公司的一个应用程序。用于身份验证代理。 DUO Authentication Proxy installer 5.2.1之前版本中存在安全漏洞，该漏洞源于未正确验证文件安装路径，攻击者可利用该漏洞强制安装程序写入任意有特权的目录。

Severity

低

Patch Name

DUO Authentication Proxy存在未明漏洞的补丁

Patch Description

DUO Authentication Proxy是美国DUO公司的一个应用程序。用于身份验证代理。 DUO Authentication Proxy installer 5.2.1之前版本中存在安全漏洞，该漏洞源于未正确验证文件安装路径，攻击者可利用该漏洞强制安装程序写入任意有特权的目录。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://help.duo.com/s/article/6789?language=en_US

Reference

https://help.duo.com/s/article/6789?language=en_US

Impacted products

Name
Duo Duo Authentication Proxy <5.2.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1492",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1492"
    }
  },
  "description": "DUO Authentication Proxy\u662f\u7f8e\u56fdDUO\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u3002\u7528\u4e8e\u8eab\u4efd\u9a8c\u8bc1\u4ee3\u7406\u3002\n\nDUO Authentication Proxy installer 5.2.1\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u6b63\u786e\u9a8c\u8bc1\u6587\u4ef6\u5b89\u88c5\u8def\u5f84\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5f3a\u5236\u5b89\u88c5\u7a0b\u5e8f\u5199\u5165\u4efb\u610f\u6709\u7279\u6743\u7684\u76ee\u5f55\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://help.duo.com/s/article/6789?language=en_US",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-31929",
  "openTime": "2021-04-30",
  "patchDescription": "DUO Authentication Proxy\u662f\u7f8e\u56fdDUO\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u3002\u7528\u4e8e\u8eab\u4efd\u9a8c\u8bc1\u4ee3\u7406\u3002\r\n\r\nDUO Authentication Proxy installer 5.2.1\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u6b63\u786e\u9a8c\u8bc1\u6587\u4ef6\u5b89\u88c5\u8def\u5f84\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5f3a\u5236\u5b89\u88c5\u7a0b\u5e8f\u5199\u5165\u4efb\u610f\u6709\u7279\u6743\u7684\u76ee\u5f55\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "DUO  Authentication Proxy\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Duo Duo Authentication Proxy \u003c5.2.1"
  },
  "referenceLink": "https://help.duo.com/s/article/6789?language=en_US",
  "serverity": "\u4f4e",
  "submitTime": "2021-04-02",
  "title": "DUO  Authentication Proxy\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2021-1492 (GCVE-0-2021-1492)

Vulnerability from cvelistv5 – Published: 2021-03-25 14:25 – Updated: 2024-11-08 23:30

Title

Duo Authentication Proxy Installer Denial of Service Vulnerability

Summary

The Duo Authentication Proxy installer prior to 5.2.1 did not properly validate file installation paths. This allows an attacker with local user privileges to coerce the installer to write to arbitrary privileged directories. If successful, an attacker can manipulate files used by Duo Authentication Proxy installer, cause Denial of Service (DoS) by deleting file(s), or replace system files to potentially achieve elevation of privileges. This is only exploitable during new installations, while the installer is running, and is not exploitable once installation has finished. Versions 5.2.1 of Duo Authentication Proxy installer addresses this issue.

Severity

6.6 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-08 20:47 UTC

CWE

CWE-64

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://help.duo.com/s/article/6789	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

Vendor	Product	Version
Cisco	Duo Authentication Proxy	Affected: unspecified , < 5.2.1 (custom)

Date Public

2021-03-25 00:00

Credits

Duo Security appreciates Ido Hoorvitch from CyberArk Labs for reporting the method of exploitation.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:11:17.436Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://help.duo.com/s/article/6789"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-1492",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T20:47:03.836598Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-08T23:30:18.753Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Duo Authentication Proxy",
          "vendor": "Cisco",
          "versions": [
            {
              "lessThan": "5.2.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Duo Security appreciates Ido Hoorvitch from CyberArk Labs for reporting the method of exploitation."
        }
      ],
      "datePublic": "2021-03-25T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Duo Authentication Proxy installer prior to 5.2.1 did not properly validate file installation paths. This allows an attacker with local user privileges to coerce the installer to write to arbitrary privileged directories. If successful, an attacker can manipulate files used by Duo Authentication Proxy installer, cause Denial of Service (DoS) by deleting file(s), or replace system files to potentially achieve elevation of privileges. This is only exploitable during new installations, while the installer is running, and is not exploitable once installation has finished. Versions 5.2.1 of Duo Authentication Proxy installer addresses this issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-64",
              "description": "CWE-64",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-25T14:25:18.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://help.duo.com/s/article/6789"
        }
      ],
      "source": {
        "advisory": "6789",
        "discovery": "EXTERNAL"
      },
      "title": "Duo Authentication Proxy Installer Denial of Service Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2021-03-25T13:00:00.000Z",
          "ID": "CVE-2021-1492",
          "STATE": "PUBLIC",
          "TITLE": "Duo Authentication Proxy Installer Denial of Service Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Duo Authentication Proxy",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "5.2.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Duo Security appreciates Ido Hoorvitch from CyberArk Labs for reporting the method of exploitation."
          }
        ],
        "data_format": "MITRE",
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        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "impact": {
          "cvss": {
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            "attackVector": "LOCAL",
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            "baseSeverity": "MEDIUM",
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            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-64"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://help.duo.com/s/article/6789",
              "refsource": "CISCO",
              "url": "https://help.duo.com/s/article/6789"
            }
          ]
        },
        "source": {
          "advisory": "6789",
          "discovery": "EXTERNAL"
        }
      }
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  },
  "cveMetadata": {
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    "assignerShortName": "cisco",
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    "datePublished": "2021-03-25T14:25:18.867Z",
    "dateReserved": "2020-11-13T00:00:00.000Z",
    "dateUpdated": "2024-11-08T23:30:18.753Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.