Vulnerability-Lookup

CNVD-2021-39685

Vulnerability from cnvd - Published: 2021-06-05

Title

Github authelia授权问题漏洞

Description

Github authelia是美国Github公司的一个应用软件。一个开源身份验证和授权服务器，可通过Web门户为应用程序提供2要素身份验证和单点登录（SSO）。 Authelia 4.29.3之前版本存在授权问题漏洞，该漏洞允许恶意的个人伪造一个畸形的http请求来绕过认证机制。目前没有详细漏洞细节提供。

Severity

高

Patch Name

Github authelia授权问题漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/authelia/authelia/security/advisories/GHSA-68wm-pfjf-wqp6

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-32637

Impacted products

Name
github authelia <4.29.3

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32637",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-32637"
    }
  },
  "description": "Github authelia\u662f\u7f8e\u56fdGithub\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u8f6f\u4ef6\u3002\u4e00\u4e2a\u5f00\u6e90\u8eab\u4efd\u9a8c\u8bc1\u548c\u6388\u6743\u670d\u52a1\u5668\uff0c\u53ef\u901a\u8fc7Web\u95e8\u6237\u4e3a\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b2\u8981\u7d20\u8eab\u4efd\u9a8c\u8bc1\u548c\u5355\u70b9\u767b\u5f55\uff08SSO\uff09\u3002\n\nAuthelia 4.29.3\u4e4b\u524d\u7248\u672c\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u6076\u610f\u7684\u4e2a\u4eba\u4f2a\u9020\u4e00\u4e2a\u7578\u5f62\u7684http\u8bf7\u6c42\u6765\u7ed5\u8fc7\u8ba4\u8bc1\u673a\u5236\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/authelia/authelia/security/advisories/GHSA-68wm-pfjf-wqp6",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-39685",
  "openTime": "2021-06-05",
  "patchDescription": "Github authelia\u662f\u7f8e\u56fdGithub\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u8f6f\u4ef6\u3002\u4e00\u4e2a\u5f00\u6e90\u8eab\u4efd\u9a8c\u8bc1\u548c\u6388\u6743\u670d\u52a1\u5668\uff0c\u53ef\u901a\u8fc7Web\u95e8\u6237\u4e3a\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b2\u8981\u7d20\u8eab\u4efd\u9a8c\u8bc1\u548c\u5355\u70b9\u767b\u5f55\uff08SSO\uff09\u3002\r\n\r\nAuthelia 4.29.3\u4e4b\u524d\u7248\u672c\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u6076\u610f\u7684\u4e2a\u4eba\u4f2a\u9020\u4e00\u4e2a\u7578\u5f62\u7684http\u8bf7\u6c42\u6765\u7ed5\u8fc7\u8ba4\u8bc1\u673a\u5236\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "Github authelia\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "github authelia \u003c4.29.3"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-32637",
  "serverity": "\u9ad8",
  "submitTime": "2021-06-02",
  "title": "Github authelia\u6388\u6743\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2021-32637 (GCVE-0-2021-32637)

Vulnerability from cvelistv5 – Published: 2021-05-28 17:00 – Updated: 2024-08-03 23:25

Title

Authentication bypassed with malformed request URI

Summary

Authelia is a a single sign-on multi-factor portal for web apps. This affects uses who are using nginx ngx_http_auth_request_module with Authelia, it allows a malicious individual who crafts a malformed HTTP request to bypass the authentication mechanism. It additionally could theoretically affect other proxy servers, but all of the ones we officially support except nginx do not allow malformed URI paths. The problem is rectified entirely in v4.29.3. As this patch is relatively straightforward we can back port this to any version upon request. Alternatively we are supplying a git patch to 4.25.1 which should be relatively straightforward to apply to any version, the git patches for specific versions can be found in the references. The most relevant workaround is upgrading. You can also add a block which fails requests that contains a malformed URI in the internal location block.

Severity

10 (Critical)


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

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/authelia/authelia/security/adv…	x_refsource_CONFIRM
https://github.com/authelia/authelia/commit/c62db…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
authelia	authelia	Affected: >= 4.0.0-alpha1, < 4.29.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:25:30.869Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/authelia/authelia/security/advisories/GHSA-68wm-pfjf-wqp6"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/authelia/authelia/commit/c62dbd43d6e69ae81530e7c4f8763857f8ff1dda"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "authelia",
          "vendor": "authelia",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.0.0-alpha1, \u003c 4.29.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Authelia is a a single sign-on multi-factor portal for web apps. This affects uses who are using nginx ngx_http_auth_request_module with Authelia, it allows a malicious individual who crafts a malformed HTTP request to bypass the authentication mechanism. It additionally could theoretically affect other proxy servers, but all of the ones we officially support except nginx do not allow malformed URI paths. The problem is rectified entirely in v4.29.3. As this patch is relatively straightforward we can back port this to any version upon request. Alternatively we are supplying a git patch to 4.25.1 which should be relatively straightforward to apply to any version, the git patches for specific versions can be found in the references. The most relevant workaround is upgrading. You can also add a block which fails requests that contains a malformed URI in the internal location block."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287: Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-28T17:00:11.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/authelia/authelia/security/advisories/GHSA-68wm-pfjf-wqp6"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/authelia/authelia/commit/c62dbd43d6e69ae81530e7c4f8763857f8ff1dda"
        }
      ],
      "source": {
        "advisory": "GHSA-68wm-pfjf-wqp6",
        "discovery": "UNKNOWN"
      },
      "title": "Authentication bypassed with malformed request URI",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-32637",
          "STATE": "PUBLIC",
          "TITLE": "Authentication bypassed with malformed request URI"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "authelia",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003e= 4.0.0-alpha1, \u003c 4.29.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "authelia"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Authelia is a a single sign-on multi-factor portal for web apps. This affects uses who are using nginx ngx_http_auth_request_module with Authelia, it allows a malicious individual who crafts a malformed HTTP request to bypass the authentication mechanism. It additionally could theoretically affect other proxy servers, but all of the ones we officially support except nginx do not allow malformed URI paths. The problem is rectified entirely in v4.29.3. As this patch is relatively straightforward we can back port this to any version upon request. Alternatively we are supplying a git patch to 4.25.1 which should be relatively straightforward to apply to any version, the git patches for specific versions can be found in the references. The most relevant workaround is upgrading. You can also add a block which fails requests that contains a malformed URI in the internal location block."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-287: Improper Authentication"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/authelia/authelia/security/advisories/GHSA-68wm-pfjf-wqp6",
              "refsource": "CONFIRM",
              "url": "https://github.com/authelia/authelia/security/advisories/GHSA-68wm-pfjf-wqp6"
            },
            {
              "name": "https://github.com/authelia/authelia/commit/c62dbd43d6e69ae81530e7c4f8763857f8ff1dda",
              "refsource": "MISC",
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            }
          ]
        },
        "source": {
          "advisory": "GHSA-68wm-pfjf-wqp6",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-32637",
    "datePublished": "2021-05-28T17:00:12.000Z",
    "dateReserved": "2021-05-12T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:25:30.869Z",
    "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.

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.

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CNVD-2021-39685

CVE-2021-32637 (GCVE-0-2021-32637)

Tags

Sightings

Nomenclature

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