Vulnerability-Lookup

CNVD-2021-64473

Vulnerability from cnvd - Published: 2021-08-24

Title

Containous Traefik权限提升漏洞

Description

Containous Traefik是美国Containous公司的一款反向代理和负载平衡器。 Traefik 2.4.13之前版本存在安全漏洞，攻击者可以利用该漏洞提升权限。

Severity

中

Patch Name

Containous Traefik权限提升漏洞的补丁

Patch Description

Containous Traefik是美国Containous公司的一款反向代理和负载平衡器。 Traefik 2.4.13之前版本存在安全漏洞，攻击者可以利用该漏洞提升权限。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

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/traefik/traefik/pull/8319/commits/cbaf86a93014a969b8accf39301932c17d0d73f9

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-32813

Impacted products

Name
Containous Traefik <2.4.13

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32813"
    }
  },
  "description": "Containous Traefik\u662f\u7f8e\u56fdContainous\u516c\u53f8\u7684\u4e00\u6b3e\u53cd\u5411\u4ee3\u7406\u548c\u8d1f\u8f7d\u5e73\u8861\u5668\u3002\n\nTraefik 2.4.13\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\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/traefik/traefik/pull/8319/commits/cbaf86a93014a969b8accf39301932c17d0d73f9",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-64473",
  "openTime": "2021-08-24",
  "patchDescription": "Containous Traefik\u662f\u7f8e\u56fdContainous\u516c\u53f8\u7684\u4e00\u6b3e\u53cd\u5411\u4ee3\u7406\u548c\u8d1f\u8f7d\u5e73\u8861\u5668\u3002\r\n\r\nTraefik 2.4.13\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\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": "Containous Traefik\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Containous Traefik \u003c2.4.13"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-32813",
  "serverity": "\u4e2d",
  "submitTime": "2021-08-05",
  "title": "Containous Traefik\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2021-32813 (GCVE-0-2021-32813)

Vulnerability from cvelistv5 – Published: 2021-08-03 22:50 – Updated: 2024-08-03 23:33

Title

Drop Headers via Malicious Connection Header

Summary

Traefik is an HTTP reverse proxy and load balancer. Prior to version 2.4.13, there exists a potential header vulnerability in Traefik's handling of the Connection header. Active exploitation of this issue is unlikely, as it requires that a removed header would lead to a privilege escalation, however, the Traefik team has addressed this issue to prevent any potential abuse. If one has a chain of Traefik middlewares, and one of them sets a request header, then sending a request with a certain Connection header will cause it to be removed before the request is sent. In this case, the backend does not see the request header. A patch is available in version 2.4.13. There are no known workarounds aside from upgrading.

Severity

4.8 (Medium)


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

CWE

CWE-913 - Improper Control of Dynamically-Managed Code Resources

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/pull/8319/comm…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v2.4.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: < 2.4.13 Affected: <= 1.7.30

Show details on NVD website

JSON

To clipboard

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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:33:55.883Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/traefik/traefik/security/advisories/GHSA-m697-4v8f-55qg"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://github.com/traefik/traefik/pull/8319/commits/cbaf86a93014a969b8accf39301932c17d0d73f9"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/traefik/traefik/releases/tag/v2.4.13"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "traefik",
          "vendor": "traefik",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.4.13"
            },
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            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Traefik is an HTTP reverse proxy and load balancer. Prior to version 2.4.13, there exists a potential header vulnerability in Traefik\u0027s handling of the Connection header. Active exploitation of this issue is unlikely, as it requires that a removed header would lead to a privilege escalation, however, the Traefik team has addressed this issue to prevent any potential abuse. If one has a chain of Traefik middlewares, and one of them sets a request header, then sending a request with a certain Connection header will cause it to be removed before the request is sent. In this case, the backend does not see the request header. A patch is available in version 2.4.13. There are no known workarounds aside from upgrading."
        }
      ],
      "metrics": [
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            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-03T22:50:11.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/traefik/traefik/security/advisories/GHSA-m697-4v8f-55qg"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/traefik/traefik/pull/8319/commits/cbaf86a93014a969b8accf39301932c17d0d73f9"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/traefik/traefik/releases/tag/v2.4.13"
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      ],
      "source": {
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        "discovery": "UNKNOWN"
      },
      "title": "Drop Headers via Malicious Connection Header",
      "x_legacyV4Record": {
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          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-32813",
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          "TITLE": "Drop Headers via Malicious Connection Header"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
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                    {
                      "product_name": "traefik",
                      "version": {
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                          {
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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-2021-64473

CVE-2021-32813 (GCVE-0-2021-32813)

Tags

Sightings

Nomenclature

Related by attack behaviour