Vulnerability-Lookup

CNVD-2017-35049

Vulnerability from cnvd - Published: 2017-11-22

Title

MIT krb5身份验证绕过漏洞

Description

MIT Kerberos是一款广泛使用的超强加密来验证客户端和服务器端的网络协议。 MIT krb5容易出现身份验证绕过漏洞。攻击者可能利用漏洞获得未经授权的访问或绕过预期的安全限制。

Severity

中

Patch Name

MIT krb5身份验证绕过漏洞的补丁

Patch Description

MIT Kerberos是一款广泛使用的超强加密来验证客户端和服务器端的网络协议。 MIT krb5容易出现身份验证绕过漏洞。攻击者可能利用漏洞获得未经授权的访问或绕过预期的安全限制。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

用户可参考如下供应商提供的安全公告获得补丁信息： http://web.mit.edu/kerberos/

Reference

http://www.securityfocus.com/bid/100511/

Impacted products

Name
MIT krb5 0

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "100511"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7562"
    }
  },
  "description": "MIT Kerberos\u662f\u4e00\u6b3e\u5e7f\u6cdb\u4f7f\u7528\u7684\u8d85\u5f3a\u52a0\u5bc6\u6765\u9a8c\u8bc1\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7684\u7f51\u7edc\u534f\u8bae\u3002\r\n\r\nMIT krb5\u5bb9\u6613\u51fa\u73b0\u8eab\u4efd\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u80fd\u5229\u7528\u6f0f\u6d1e\u83b7\u5f97\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u6216\u7ed5\u8fc7\u9884\u671f\u7684\u5b89\u5168\u9650\u5236\u3002",
  "discovererName": "greghudson",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttp://web.mit.edu/kerberos/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-35049",
  "openTime": "2017-11-22",
  "patchDescription": "MIT Kerberos\u662f\u4e00\u6b3e\u5e7f\u6cdb\u4f7f\u7528\u7684\u8d85\u5f3a\u52a0\u5bc6\u6765\u9a8c\u8bc1\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7684\u7f51\u7edc\u534f\u8bae\u3002\r\n\r\nMIT krb5\u5bb9\u6613\u51fa\u73b0\u8eab\u4efd\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u80fd\u5229\u7528\u6f0f\u6d1e\u83b7\u5f97\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u6216\u7ed5\u8fc7\u9884\u671f\u7684\u5b89\u5168\u9650\u5236\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": "MIT krb5\u8eab\u4efd\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "MIT krb5 0"
  },
  "referenceLink": "http://www.securityfocus.com/bid/100511/",
  "serverity": "\u4e2d",
  "submitTime": "2017-09-21",
  "title": "MIT krb5\u8eab\u4efd\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2017-7562 (GCVE-0-2017-7562)

Vulnerability from cvelistv5 – Published: 2018-07-26 15:00 – Updated: 2024-08-05 16:04

Summary

An authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances.

Severity

6.5 (Medium)


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

CWE

Assigner

redhat redhat root

References

7 references

URL	Tags
https://github.com/krb5/krb5/pull/694/commits/50f…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/100511	vdb-entryx_refsource_BID
https://github.com/krb5/krb5/pull/694/commits/1de…	x_refsource_CONFIRM
https://github.com/krb5/krb5/pull/694	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:0666	vendor-advisoryx_refsource_REDHAT
https://github.com/krb5/krb5/pull/694/commits/b7a…	x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
MIT	krb5	Affected: 1.16.1

Date Public

2017-08-25 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T16:04:12.058Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          },
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    ],
    "cna": {
      "affected": [
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          "product": "krb5",
          "vendor": "MIT",
          "versions": [
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        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
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              "description": "CWE-287",
              "lang": "en",
              "type": "CWE"
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        "dateUpdated": "2018-07-27T09:57:01.000Z",
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        },
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          "url": "https://github.com/krb5/krb5/pull/694"
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    "datePublished": "2018-07-26T15:00:00.000Z",
    "dateReserved": "2017-04-05T00:00:00.000Z",
    "dateUpdated": "2024-08-05T16:04:12.058Z",
    "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.
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CNVD-2017-35049

CVE-2017-7562 (GCVE-0-2017-7562)

Tags

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Nomenclature

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