pysec - pysec-2021-328

pysec-2021-328

Vulnerability from pysec

Published

2021-09-16 15:15

Modified

2021-09-23 00:11

Details

mitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In mitmproxy 7.0.2 and below, a malicious client or server is able to perform HTTP request smuggling attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of another request/response's HTTP message body. While a smuggled request is still captured as part of another request's body, it does not appear in the request list and does not go through the usual mitmproxy event hooks, where users may have implemented custom access control checks or input sanitization. Unless one uses mitmproxy to protect an HTTP/1 service, no action is required. The vulnerability has been fixed in mitmproxy 7.0.3 and above.

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mitmproxy",
        "purl": "pkg:pypi/mitmproxy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10",
        "0.10.1",
        "0.11",
        "0.11.1",
        "0.11.2",
        "0.11.3",
        "0.12.0",
        "0.12.1",
        "0.13",
        "0.14.0",
        "0.15",
        "0.16",
        "0.17",
        "0.18.1",
        "0.18.2",
        "0.18.3",
        "0.8",
        "0.8.1",
        "0.9",
        "0.9.1",
        "0.9.2",
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "2.0.0",
        "2.0.1",
        "2.0.2",
        "3.0.0",
        "3.0.1",
        "3.0.2",
        "3.0.3",
        "3.0.4",
        "4.0.0",
        "4.0.1",
        "4.0.3",
        "4.0.4",
        "5.0.0",
        "5.0.1",
        "5.1.0",
        "5.1.1",
        "5.2",
        "5.3.0",
        "6.0.0",
        "6.0.1",
        "6.0.2",
        "7.0.0",
        "7.0.1",
        "7.0.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-39214",
    "GHSA-22gh-3r9q-xf38"
  ],
  "details": "mitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In mitmproxy 7.0.2 and below, a malicious client or server is able to perform HTTP request smuggling attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of another request/response\u0027s HTTP message body. While a smuggled request is still captured as part of another request\u0027s body, it does not appear in the request list and does not go through the usual mitmproxy event hooks, where users may have implemented custom access control checks or input sanitization. Unless one uses mitmproxy to protect an HTTP/1 service, no action is required. The vulnerability has been fixed in mitmproxy 7.0.3 and above.",
  "id": "PYSEC-2021-328",
  "modified": "2021-09-23T00:11:00.900340Z",
  "published": "2021-09-16T15:15:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38"
    }
  ]
}

cve-2021-39214

Vulnerability from cvelistv5

Published

2021-09-16 15:10

Modified

2024-08-04 01:58

Severity ?

8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

▼	URL	Tags
	https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38	x_refsource_CONFIRM

Impacted products

Vendor

Product

Version

▼

mitmproxy

Version: < 7.0.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:58:18.196Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "mitmproxy",
          "vendor": "mitmproxy",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.0.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "mitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In mitmproxy 7.0.2 and below, a malicious client or server is able to perform HTTP request smuggling attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of another request/response\u0027s HTTP message body. While a smuggled request is still captured as part of another request\u0027s body, it does not appear in the request list and does not go through the usual mitmproxy event hooks, where users may have implemented custom access control checks or input sanitization. Unless one uses mitmproxy to protect an HTTP/1 service, no action is required. The vulnerability has been fixed in mitmproxy 7.0.3 and above."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-444",
              "description": "CWE-444: Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request Smuggling\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-16T15:10:10",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38"
        }
      ],
      "source": {
        "advisory": "GHSA-22gh-3r9q-xf38",
        "discovery": "UNKNOWN"
      },
      "title": "Lacking Protection against HTTP Request Smuggling in mitmproxy",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-39214",
          "STATE": "PUBLIC",
          "TITLE": "Lacking Protection against HTTP Request Smuggling in mitmproxy"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "mitmproxy",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 7.0.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "mitmproxy"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "mitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In mitmproxy 7.0.2 and below, a malicious client or server is able to perform HTTP request smuggling attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of another request/response\u0027s HTTP message body. While a smuggled request is still captured as part of another request\u0027s body, it does not appear in the request list and does not go through the usual mitmproxy event hooks, where users may have implemented custom access control checks or input sanitization. Unless one uses mitmproxy to protect an HTTP/1 service, no action is required. The vulnerability has been fixed in mitmproxy 7.0.3 and above."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-444: Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request Smuggling\u0027)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38",
              "refsource": "CONFIRM",
              "url": "https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-22gh-3r9q-xf38",
          "discovery": "UNKNOWN"
        }
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-39214",
    "datePublished": "2021-09-16T15:10:10",
    "dateReserved": "2021-08-16T00:00:00",
    "dateUpdated": "2024-08-04T01:58:18.196Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

ghsa-22gh-3r9q-xf38

Vulnerability from github

Published

2021-09-20 19:53

Modified

2024-10-01 19:26

Severity ?

8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Summary

Lacking Protection against HTTP Request Smuggling in mitmproxy

Details

Impact

In mitmproxy 7.0.2 and below, a malicious client or server is able to perform HTTP request smuggling attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of another request/response's HTTP message body. While mitmproxy would only see one request, the target server would see multiple requests. A smuggled request is still captured as part of another request's body, but it does not appear in the request list and does not go through the usual mitmproxy event hooks, where users may have implemented custom access control checks or input sanitization.

Unless you use mitmproxy to protect an HTTP/1 service, no action is required.

Patches

The vulnerability has been fixed in mitmproxy 7.0.3 and above.

Acknowledgements

We thank João Sobral (@chinchila) for responsibly disclosing this vulnerability to the mitmproxy team.

Timeline

2021-09-08: Received initial report for mitmproxy <= 6.0.2.
2021-09-08: Requested clarification if 7.x is affected.
2021-09-10: Received additional details, 7.x situation still unclear.
2021-09-13: Internally determined that 7.x is also affected.
2021-09-13: Shared initial fix with researcher.
2021-09-14: Received confirmation that fix is working, but H2.TE/H2.CL should also be looked at.
2021-09-14: Shared revised fix that includes additional H2.TE mitigations.
2021-09-14: Received confirmation that revised fix is working.
2021-09-16: Completed internal patch review.
2021-09-16: Published patch release and advisory.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mitmproxy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-39214"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-09-17T18:30:53Z",
    "nvd_published_at": "2021-09-16T15:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nIn mitmproxy 7.0.2 and below, a malicious client or server is able to perform [HTTP request smuggling](https://en.wikipedia.org/wiki/HTTP_request_smuggling) attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of another request/response\u0027s HTTP message body. While mitmproxy would only see one request, the target server would see multiple requests. A smuggled request is still captured as part of another request\u0027s body, but it does not appear in the request list and does not go through the usual mitmproxy event hooks, where users may have implemented custom access control checks or input sanitization.\n\nUnless you use mitmproxy to protect an HTTP/1 service, no action is required.\n\n\n### Patches\n\nThe vulnerability has been fixed in mitmproxy 7.0.3 and above.\n\n\n### Acknowledgements\n\nWe thank Jo\u00e3o Sobral (@chinchila) for responsibly disclosing this vulnerability to the mitmproxy team.\n\n\n### Timeline\n\n- **2021-09-08**: Received initial report for mitmproxy \u003c= 6.0.2.\n- **2021-09-08**: Requested clarification if 7.x is affected.\n- **2021-09-10**: Received additional details, 7.x situation still unclear.\n- **2021-09-13**: Internally determined that 7.x is also affected.\n- **2021-09-13**: Shared initial fix with researcher.\n- **2021-09-14**: Received confirmation that fix is working, but H2.TE/H2.CL should also be looked at.\n- **2021-09-14**: Shared revised fix that includes additional H2.TE mitigations.\n- **2021-09-14**: Received confirmation that revised fix is working.\n- **2021-09-16**: Completed internal patch review.\n- **2021-09-16**: Published patch release and advisory.",
  "id": "GHSA-22gh-3r9q-xf38",
  "modified": "2024-10-01T19:26:44Z",
  "published": "2021-09-20T19:53:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39214"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mitmproxy/mitmproxy"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/mitmproxy/PYSEC-2021-328.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Lacking Protection against HTTP Request Smuggling in mitmproxy"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2021-328

Vulnerability from pysec

cve-2021-39214

Vulnerability from cvelistv5

ghsa-22gh-3r9q-xf38

Vulnerability from github

Impact

Patches

Acknowledgements

Timeline

Tags

Sightings

Nomenclature