Vulnerability-Lookup

CNVD-2022-05867

Vulnerability from cnvd - Published: 2022-01-23

Title

HAProxy输入验证错误漏洞

Description

HAProxy是法国HAProxy=公司的一款开源的TCP/HTTP负载均衡服务器。= HAProxy存在输入验证错误漏洞，该漏洞源于HAProxy中的htx_add_header()和htx_add_trailer() 函数中缺少标头名称长度检查，攻击者可利用漏洞导致请求走私攻击或响应拆分攻击。

Severity

中

Patch Name

HAProxy输入验证错误漏洞的补丁

Patch Description

HAProxy是法国HAProxy=公司的一款开源的TCP/HTTP负载均衡服务器。= HAProxy存在输入验证错误漏洞，该漏洞源于HAProxy中的htx_add_header()和htx_add_trailer() 函数中缺少标头名称长度检查，攻击者可利用漏洞导致请求走私攻击或响应拆分攻击。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://www.auscert.org.au/bulletins/ESB-2021.3002

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-40346

Impacted products

Name
HAProxy HAProxy >=2.0，<=2.5

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-40346"
    }
  },
  "description": "HAProxy\u662f\u6cd5\u56fdHAProxy=\u516c\u53f8\u7684\u4e00\u6b3e\u5f00\u6e90\u7684TCP/HTTP\u8d1f\u8f7d\u5747\u8861\u670d\u52a1\u5668\u3002=\n\nHAProxy\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eHAProxy\u4e2d\u7684htx_add_header()\u548chtx_add_trailer() \u51fd\u6570\u4e2d\u7f3a\u5c11\u6807\u5934\u540d\u79f0\u957f\u5ea6\u68c0\u67e5\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u8bf7\u6c42\u8d70\u79c1\u653b\u51fb\u6216\u54cd\u5e94\u62c6\u5206\u653b\u51fb\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://www.auscert.org.au/bulletins/ESB-2021.3002",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-05867",
  "openTime": "2022-01-23",
  "patchDescription": "HAProxy\u662f\u6cd5\u56fdHAProxy=\u516c\u53f8\u7684\u4e00\u6b3e\u5f00\u6e90\u7684TCP/HTTP\u8d1f\u8f7d\u5747\u8861\u670d\u52a1\u5668\u3002=\r\n\r\nHAProxy\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eHAProxy\u4e2d\u7684htx_add_header()\u548chtx_add_trailer() \u51fd\u6570\u4e2d\u7f3a\u5c11\u6807\u5934\u540d\u79f0\u957f\u5ea6\u68c0\u67e5\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u8bf7\u6c42\u8d70\u79c1\u653b\u51fb\u6216\u54cd\u5e94\u62c6\u5206\u653b\u51fb\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": "HAProxy\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "HAProxy HAProxy \u003e=2.0\uff0c\u003c=2.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-40346",
  "serverity": "\u4e2d",
  "submitTime": "2021-09-09",
  "title": "HAProxy\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-40346 (GCVE-0-2021-40346)

Vulnerability from cvelistv5 – Published: 2021-09-08 16:40 – Updated: 2024-08-04 02:27

Summary

An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

10 references

URL	Tags
https://www.mail-archive.com/haproxy%40formilux.org	x_refsource_MISC
https://git.haproxy.org/?p=haproxy.git	x_refsource_MISC
https://www.debian.org/security/2021/dsa-4968	vendor-advisoryx_refsource_DEBIAN
https://www.mail-archive.com/haproxy%40formilux.o…	x_refsource_MISC
https://jfrog.com/blog/critical-vulnerability-in-…	x_refsource_MISC
https://github.com/haproxy/haproxy/commit/3b69886…	x_refsource_MISC
https://lists.apache.org/thread.html/r284567dd752…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r8a58fd7a298…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T02:27:31.887Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.mail-archive.com/haproxy%40formilux.org"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://git.haproxy.org/?p=haproxy.git"
          },
          {
            "name": "DSA-4968",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-4968"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg41114.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/haproxy/haproxy/commit/3b69886f7dcc3cfb3d166309018e6cfec9ce2c95"
          },
          {
            "name": "[cloudstack-dev] 20210910 CVE-2021-40346 (haproxy 2.x)",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.apache.org/thread.html/r284567dd7523f5823e2ce995f787ccd37b1cc4108779c50a97c79120%40%3Cdev.cloudstack.apache.org%3E"
          },
          {
            "name": "[cloudstack-dev] 20210910 Re: CVE-2021-40346 (haproxy 2.x)",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.apache.org/thread.html/r8a58fd7a29808e5d27ee56877745e58dc4bb041b9af94601554e2a5a%40%3Cdev.cloudstack.apache.org%3E"
          },
          {
            "name": "FEDORA-2021-3493f9f6ab",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7V2IYO22LWVBGUNZWVKNTMDV4KINLFO/"
          },
          {
            "name": "FEDORA-2021-cd5ee418f6",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXTSBY2TEAXWZVFQM3CXHJFRONX7PEMN/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "n/a",
          "versions": [
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            }
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      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-17T21:06:26.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.mail-archive.com/haproxy%40formilux.org"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://git.haproxy.org/?p=haproxy.git"
        },
        {
          "name": "DSA-4968",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2021/dsa-4968"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg41114.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/haproxy/haproxy/commit/3b69886f7dcc3cfb3d166309018e6cfec9ce2c95"
        },
        {
          "name": "[cloudstack-dev] 20210910 CVE-2021-40346 (haproxy 2.x)",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.apache.org/thread.html/r284567dd7523f5823e2ce995f787ccd37b1cc4108779c50a97c79120%40%3Cdev.cloudstack.apache.org%3E"
        },
        {
          "name": "[cloudstack-dev] 20210910 Re: CVE-2021-40346 (haproxy 2.x)",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.apache.org/thread.html/r8a58fd7a29808e5d27ee56877745e58dc4bb041b9af94601554e2a5a%40%3Cdev.cloudstack.apache.org%3E"
        },
        {
          "name": "FEDORA-2021-3493f9f6ab",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7V2IYO22LWVBGUNZWVKNTMDV4KINLFO/"
        },
        {
          "name": "FEDORA-2021-cd5ee418f6",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXTSBY2TEAXWZVFQM3CXHJFRONX7PEMN/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-40346",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
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                        ]
                      }
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                  ]
                },
                "vendor_name": "n/a"
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        "data_format": "MITRE",
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        "description": {
          "description_data": [
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              "value": "An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.mail-archive.com/haproxy@formilux.org",
              "refsource": "MISC",
              "url": "https://www.mail-archive.com/haproxy@formilux.org"
            },
            {
              "name": "https://git.haproxy.org/?p=haproxy.git",
              "refsource": "MISC",
              "url": "https://git.haproxy.org/?p=haproxy.git"
            },
            {
              "name": "DSA-4968",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4968"
            },
            {
              "name": "https://www.mail-archive.com/haproxy@formilux.org/msg41114.html",
              "refsource": "MISC",
              "url": "https://www.mail-archive.com/haproxy@formilux.org/msg41114.html"
            },
            {
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              "refsource": "MISC",
              "url": "https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/"
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            },
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              "url": "https://lists.apache.org/thread.html/r8a58fd7a29808e5d27ee56877745e58dc4bb041b9af94601554e2a5a@%3Cdev.cloudstack.apache.org%3E"
            },
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              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A7V2IYO22LWVBGUNZWVKNTMDV4KINLFO/"
            },
            {
              "name": "FEDORA-2021-cd5ee418f6",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MXTSBY2TEAXWZVFQM3CXHJFRONX7PEMN/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-40346",
    "datePublished": "2021-09-08T16:40:38.000Z",
    "dateReserved": "2021-08-31T00:00:00.000Z",
    "dateUpdated": "2024-08-04T02:27:31.887Z",
    "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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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.

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CNVD-2022-05867

CVE-2021-40346 (GCVE-0-2021-40346)

Tags

Sightings

Nomenclature

Related by attack behaviour