cnvd - cnvd-2017-35316

CNVD-2017-35316

Vulnerability from cnvd - Published: 2017-11-29

Title

pyjwt存在未明漏洞

Description

Python是Python软件基金会的一套开源的、面向对象的程序设计语言。PyJWT是软件开发者Jose Padilla所研发的一个Python中的JSON Web Token实现。 PyJWT 1.5.0及之前的版本中存在安全漏洞。攻击者可利用该漏洞制造JWT。

Severity

中

Patch Name

pyjwt存在未明漏洞的补丁

Patch Description

Python是Python软件基金会的一套开源的、面向对象的程序设计语言。PyJWT是软件开发者Jose Padilla所研发的一个Python中的JSON Web Token实现。 PyJWT 1.5.0及之前的版本中存在安全漏洞。攻击者可利用该漏洞制造JWT。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/jpadilla/pyjwt/pull/277/commits

Reference

https://www.debian.org/security/2017/dsa-3979

Impacted products

Name
Pyjwt_project PyJWT <=1.5.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-11424"
    }
  },
  "description": "Python\u662fPython\u8f6f\u4ef6\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u5f00\u6e90\u7684\u3001\u9762\u5411\u5bf9\u8c61\u7684\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\u3002PyJWT\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Jose Padilla\u6240\u7814\u53d1\u7684\u4e00\u4e2aPython\u4e2d\u7684JSON Web Token\u5b9e\u73b0\u3002\r\n\r\nPyJWT 1.5.0\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5236\u9020JWT\u3002",
  "discovererName": "Unknow",
  "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/jpadilla/pyjwt/pull/277/commits",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-35316",
  "openTime": "2017-11-29",
  "patchDescription": "Python\u662fPython\u8f6f\u4ef6\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u5f00\u6e90\u7684\u3001\u9762\u5411\u5bf9\u8c61\u7684\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\u3002PyJWT\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Jose Padilla\u6240\u7814\u53d1\u7684\u4e00\u4e2aPython\u4e2d\u7684JSON Web Token\u5b9e\u73b0\u3002\r\n\r\nPyJWT 1.5.0\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5236\u9020JWT\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": "pyjwt\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Pyjwt_project PyJWT  \u003c=1.5.0"
  },
  "referenceLink": "https://www.debian.org/security/2017/dsa-3979",
  "serverity": "\u4e2d",
  "submitTime": "2017-09-21",
  "title": "pyjwt\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2017-11424 (GCVE-0-2017-11424)

Vulnerability from cvelistv5 – Published: 2017-08-24 16:00 – Updated: 2024-08-05 18:12

Summary

In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM encoded format would be allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC KEY-----` which is not accounted for. This enables symmetric/asymmetric key confusion attacks against users using the PKCS1 PEM encoded public keys, which would allow an attacker to craft JWTs from scratch.

Severity ?

No CVSS data available.

CWE

Assigner

duo

References

URL

Tags

	http://www.debian.org/security/2017/dsa-3979	vendor-advisoryx_refsource_DEBIAN
	https://github.com/jpadilla/pyjwt/pull/277	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T18:12:39.550Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "DSA-3979",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2017/dsa-3979"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/jpadilla/pyjwt/pull/277"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2017-06-22T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM encoded format would be allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC KEY-----` which is not accounted for. This enables symmetric/asymmetric key confusion attacks against users using the PKCS1 PEM encoded public keys, which would allow an attacker to craft JWTs from scratch."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-11-03T18:57:01",
        "orgId": "7cd4c57f-0a88-4dda-be53-70336b413766",
        "shortName": "duo"
      },
      "references": [
        {
          "name": "DSA-3979",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2017/dsa-3979"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/jpadilla/pyjwt/pull/277"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@duo.com",
          "ID": "CVE-2017-11424",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM encoded format would be allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC KEY-----` which is not accounted for. This enables symmetric/asymmetric key confusion attacks against users using the PKCS1 PEM encoded public keys, which would allow an attacker to craft JWTs from scratch."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "DSA-3979",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2017/dsa-3979"
            },
            {
              "name": "https://github.com/jpadilla/pyjwt/pull/277",
              "refsource": "CONFIRM",
              "url": "https://github.com/jpadilla/pyjwt/pull/277"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7cd4c57f-0a88-4dda-be53-70336b413766",
    "assignerShortName": "duo",
    "cveId": "CVE-2017-11424",
    "datePublished": "2017-08-24T16:00:00",
    "dateReserved": "2017-07-18T00:00:00",
    "dateUpdated": "2024-08-05T18:12:39.550Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2017-35316

CVE-2017-11424 (GCVE-0-2017-11424)

Tags

Sightings

Nomenclature