Vulnerability-Lookup

CNVD-2019-15984

Vulnerability from cnvd - Published: 2019-05-30

Title

OneLogin python-saml身份验证绕过漏洞

Description

OneLogin python-saml是美国OneLogin公司的一款基于Python的、用于单点登录（SSO）服务的SAML（安全断言标记语言）库。 OneLogin python-saml中存在身份验证绕过漏洞。攻击者可利用该漏洞绕过身份验证机制并执行未授权的操作。

Severity

高

Patch Name

OneLogin python-saml身份验证绕过漏洞的补丁

Patch Description

Clever saml2-js是一款使用在Clever产品中的SAML（安全断言标记语言）脚本。 Clever saml2-js 2.0版本和1.0版本中存在身份验证绕过漏洞。攻击者可利用该漏洞绕过身份验证机制并执行未授权的操作。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/onelogin/python-saml

Reference

https://www.kb.cert.org/vuls/id/475445

Impacted products

Name
['OneLogin OneLogin python-saml 2.3', 'OneLogin OneLogin python-saml 2.2', 'OneLogin OneLogin python-saml 2.1', 'OneLogin OneLogin python-saml 1.1', 'OneLogin OneLogin python-saml 1.0']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-11427",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11427"
    }
  },
  "description": "OneLogin python-saml\u662f\u7f8e\u56fdOneLogin\u516c\u53f8\u7684\u4e00\u6b3e\u57fa\u4e8ePython\u7684\u3001\u7528\u4e8e\u5355\u70b9\u767b\u5f55\uff08SSO\uff09\u670d\u52a1\u7684SAML\uff08\u5b89\u5168\u65ad\u8a00\u6807\u8bb0\u8bed\u8a00\uff09\u5e93\u3002\n\nOneLogin python-saml\u4e2d\u5b58\u5728\u8eab\u4efd\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u673a\u5236\u5e76\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\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/onelogin/python-saml",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-15984",
  "openTime": "2019-05-30",
  "patchDescription": "Clever saml2-js\u662f\u4e00\u6b3e\u4f7f\u7528\u5728Clever\u4ea7\u54c1\u4e2d\u7684SAML\uff08\u5b89\u5168\u65ad\u8a00\u6807\u8bb0\u8bed\u8a00\uff09\u811a\u672c\u3002\r\n\r\nClever saml2-js 2.0\u7248\u672c\u548c1.0\u7248\u672c\u4e2d\u5b58\u5728\u8eab\u4efd\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u673a\u5236\u5e76\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\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": "OneLogin python-saml\u8eab\u4efd\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "OneLogin OneLogin python-saml 2.3",
      "OneLogin OneLogin python-saml 2.2",
      "OneLogin OneLogin python-saml 2.1",
      "OneLogin OneLogin python-saml 1.1",
      "OneLogin OneLogin python-saml 1.0"
    ]
  },
  "referenceLink": "https://www.kb.cert.org/vuls/id/475445",
  "serverity": "\u9ad8",
  "submitTime": "2019-04-23",
  "title": "OneLogin python-saml\u8eab\u4efd\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2017-11427 (GCVE-0-2017-11427)

Vulnerability from cvelistv5 – Published: 2019-04-17 13:59 – Updated: 2024-08-05 18:12

Title

Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal

Summary

OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

Severity

7.7 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CWE

CWE-287 - Improper Authentication

Assigner

duo CNA

CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details

References

2 references

URL	Tags
https://duo.com/blog/duo-finds-saml-vulnerabiliti…	x_refsource_MISC
https://www.kb.cert.org/vuls/id/475445	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
OneLogin	PythonSAML	Affected: unspecified , < 2.3.0 (custom)

Credits

Kelby Ludwig of Duo Security

Show details on NVD website

JSON

To clipboard

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        "references": [
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            "tags": [
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              "x_transferred"
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            "url": "https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://www.kb.cert.org/vuls/id/475445"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "PythonSAML",
          "vendor": "OneLogin",
          "versions": [
            {
              "lessThan": "2.3.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
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      "credits": [
        {
          "lang": "en",
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        }
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        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
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          }
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        "dateUpdated": "2019-04-17T13:59:19.000Z",
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          "url": "https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations"
        },
        {
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            "x_refsource_MISC"
          ],
          "url": "https://www.kb.cert.org/vuls/id/475445"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal",
      "x_legacyV4Record": {
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          "ASSIGNER": "security@duo.com",
          "ID": "CVE-2017-11427",
          "STATE": "PUBLIC",
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        },
        "affects": {
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            "vendor_data": [
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                "vendor_name": "OneLogin"
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    "datePublished": "2019-04-17T13:59:19.000Z",
    "dateReserved": "2017-07-18T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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