Vulnerability-Lookup

CNVD-2021-36605

Vulnerability from cnvd - Published: 2021-05-24

Title

Squid环境问题漏洞

Description

Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 4.12之前版本和5.0.3之前的5.x版本中的http/ContentLengthInterpreter.cc文件存在环境问题漏洞，该漏洞源于程序没有正确验证输入。攻击者可借助特制HTTP请求利用该漏洞造成Web缓存中毒，绕过Web应用程序防火墙保护或实施跨站脚本攻击。

Severity

中

Patch Name

Squid环境问题漏洞的补丁

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/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-15049

Impacted products

Name
['Squid Squid <4.12', 'Squid Squid >=5.0，<5.0.3', 'Squid Squid >=4.0，<4.12', 'Squid Squid >=3.1，<3.5.28', 'Squid Squid 2.7:stable2', 'Squid Squid 2.7:stable3', 'Squid Squid 2.7:stable4', 'Squid Squid 2.7:stable8', 'Squid Squid 2.7:stable9']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-15049"
    }
  },
  "description": "Squid\u662f\u4e00\u5957\u4ee3\u7406\u670d\u52a1\u5668\u548cWeb\u7f13\u5b58\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u63d0\u4f9b\u7f13\u5b58\u4e07\u7ef4\u7f51\u3001\u8fc7\u6ee4\u6d41\u91cf\u3001\u4ee3\u7406\u4e0a\u7f51\u7b49\u529f\u80fd\u3002\n\nSquid 4.12\u4e4b\u524d\u7248\u672c\u548c5.0.3\u4e4b\u524d\u76845.x\u7248\u672c\u4e2d\u7684http/ContentLengthInterpreter.cc\u6587\u4ef6\u5b58\u5728\u73af\u5883\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u6b63\u786e\u9a8c\u8bc1\u8f93\u5165\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236HTTP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210Web\u7f13\u5b58\u4e2d\u6bd2\uff0c\u7ed5\u8fc7Web\u5e94\u7528\u7a0b\u5e8f\u9632\u706b\u5899\u4fdd\u62a4\u6216\u5b9e\u65bd\u8de8\u7ad9\u811a\u672c\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://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-36605",
  "openTime": "2021-05-24",
  "patchDescription": "Squid\u662f\u4e00\u5957\u4ee3\u7406\u670d\u52a1\u5668\u548cWeb\u7f13\u5b58\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u63d0\u4f9b\u7f13\u5b58\u4e07\u7ef4\u7f51\u3001\u8fc7\u6ee4\u6d41\u91cf\u3001\u4ee3\u7406\u4e0a\u7f51\u7b49\u529f\u80fd\u3002\r\n\r\nSquid 4.12\u4e4b\u524d\u7248\u672c\u548c5.0.3\u4e4b\u524d\u76845.x\u7248\u672c\u4e2d\u7684http/ContentLengthInterpreter.cc\u6587\u4ef6\u5b58\u5728\u73af\u5883\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u6b63\u786e\u9a8c\u8bc1\u8f93\u5165\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236HTTP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210Web\u7f13\u5b58\u4e2d\u6bd2\uff0c\u7ed5\u8fc7Web\u5e94\u7528\u7a0b\u5e8f\u9632\u706b\u5899\u4fdd\u62a4\u6216\u5b9e\u65bd\u8de8\u7ad9\u811a\u672c\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": "Squid\u73af\u5883\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Squid Squid \u003c4.12",
      "Squid Squid \u003e=5.0\uff0c\u003c5.0.3",
      "Squid Squid \u003e=4.0\uff0c\u003c4.12",
      "Squid Squid \u003e=3.1\uff0c\u003c3.5.28",
      "Squid Squid 2.7:stable2",
      "Squid Squid 2.7:stable3",
      "Squid Squid 2.7:stable4",
      "Squid Squid 2.7:stable8",
      "Squid Squid 2.7:stable9"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-15049",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-30",
  "title": "Squid\u73af\u5883\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-15049 (GCVE-0-2020-15049)

Vulnerability from cvelistv5 – Published: 2020-06-30 17:55 – Updated: 2024-08-04 13:08

Summary

An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value.

Severity

9.9 (Critical)


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

CWE

Assigner

mitre mitre root

References

10 references

URL	Tags
http://www.squid-cache.org/Versions/v4/changesets…	x_refsource_MISC
http://www.squid-cache.org/Versions/v5/changesets…	x_refsource_MISC
https://github.com/squid-cache/squid/security/adv…	x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2020/dsa-4732	vendor-advisoryx_refsource_DEBIAN
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://usn.ubuntu.com/4551-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2021031…	x_refsource_CONFIRM

Date Public

2020-06-26 00:00

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:08:21.396Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patch"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5"
          },
          {
            "name": "FEDORA-2020-cbebc5617e",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/"
          },
          {
            "name": "DSA-4732",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2020/dsa-4732"
          },
          {
            "name": "openSUSE-SU-2020:1346",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html"
          },
          {
            "name": "openSUSE-SU-2020:1369",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html"
          },
          {
            "name": "USN-4551-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4551-1/"
          },
          {
            "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210312-0001/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2020-06-26T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing \"+\\ \"-\" or an uncommon shell whitespace character prefix to the length field-value."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:C/UI:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "lang": "en",
              "type": "text"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-12T12:06:30.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
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          ],
          "url": "http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch"
        },
        {
          "tags": [
            "x_refsource_MISC"
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          "url": "http://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patch"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5"
        },
        {
          "name": "FEDORA-2020-cbebc5617e",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/"
        },
        {
          "name": "DSA-4732",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2020/dsa-4732"
        },
        {
          "name": "openSUSE-SU-2020:1346",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html"
        },
        {
          "name": "openSUSE-SU-2020:1369",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html"
        },
        {
          "name": "USN-4551-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4551-1/"
        },
        {
          "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210312-0001/"
        }
      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-15049",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
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                            "version_value": "n/a"
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                "vendor_name": "n/a"
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            }
          ]
        },
        "impact": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "confidentialityImpact": "HIGH",
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              "refsource": "MISC",
              "url": "http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch"
            },
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            },
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              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020/dsa-4732"
            },
            {
              "name": "openSUSE-SU-2020:1346",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html"
            },
            {
              "name": "openSUSE-SU-2020:1369",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html"
            },
            {
              "name": "USN-4551-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4551-1/"
            },
            {
              "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html"
            },
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              "name": "https://security.netapp.com/advisory/ntap-20210312-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20210312-0001/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-15049",
    "datePublished": "2020-06-30T17:55:55.000Z",
    "dateReserved": "2020-06-25T00:00:00.000Z",
    "dateUpdated": "2024-08-04T13:08:21.396Z",
    "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.

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.

Action not permitted

CNVD-2021-36605

CVE-2020-15049 (GCVE-0-2020-15049)

Tags

Sightings

Nomenclature

Related by attack behaviour