Vulnerability-Lookup

CNVD-2020-29429

Vulnerability from cnvd - Published: 2020-05-22

Title

ISC BIND拒绝服务漏洞（CNVD-2020-29429）

Description

ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。 ISC BIND中存在拒绝服务漏洞。远程攻击者可利用该漏洞导致拒绝服务。

Severity

高

Patch Name

ISC BIND拒绝服务漏洞（CNVD-2020-29429）的补丁

Patch Description

ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。 ISC BIND中存在拒绝服务漏洞。远程攻击者可利用该漏洞导致拒绝服务。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://kb.isc.org/docs/cve-2020-8617

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-8617

Impacted products

Name
['ISC BIND 9.0.0 -> 9.11.18', 'ISC BIND 9.12.0 -> 9.12.4-P2', 'ISC BIND 9.14.0 -> 9.14.11', 'ISC BIND 9.16.0 -> 9.16.2', 'ISC BIND 9.17.0 -> 9.17.1 实验版本分支', 'ISC BIND 9.13 and 9.15 所有废弃的开发分支', 'ISC BIND Supported Preview Edition from 9.9.3-S1 -> 9.11.18-S1']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8617"
    }
  },
  "description": "ISC BIND\u662f\u7f8e\u56fdISC\u516c\u53f8\u7684\u4e00\u5957\u5b9e\u73b0\u4e86DNS\u534f\u8bae\u7684\u5f00\u6e90\u8f6f\u4ef6\u3002\n\nISC BIND\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-29429",
  "openTime": "2020-05-22",
  "patchDescription": "ISC BIND\u662f\u7f8e\u56fdISC\u516c\u53f8\u7684\u4e00\u5957\u5b9e\u73b0\u4e86DNS\u534f\u8bae\u7684\u5f00\u6e90\u8f6f\u4ef6\u3002\r\n\r\nISC BIND\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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": "ISC BIND\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-29429\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "ISC BIND 9.0.0 -\u003e 9.11.18",
      "ISC BIND 9.12.0 -\u003e 9.12.4-P2",
      "ISC BIND 9.14.0 -\u003e 9.14.11",
      "ISC BIND 9.16.0 -\u003e 9.16.2",
      "ISC BIND 9.17.0 -\u003e 9.17.1 \u5b9e\u9a8c\u7248\u672c\u5206\u652f",
      "ISC BIND 9.13 and 9.15 \u6240\u6709\u5e9f\u5f03\u7684\u5f00\u53d1\u5206\u652f",
      "ISC BIND Supported Preview Edition from 9.9.3-S1 -\u003e 9.11.18-S1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-8617",
  "serverity": "\u9ad8",
  "submitTime": "2020-05-20",
  "title": "ISC BIND\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-29429\uff09"
}

CVE-2020-8617 (GCVE-0-2020-8617)

Vulnerability from cvelistv5 – Published: 2020-05-19 14:05 – Updated: 2024-09-16 20:26

Title

A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c

Summary

Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server. Since BIND, by default, configures a local session key even on servers whose configuration does not otherwise make use of it, almost all current BIND servers are vulnerable. In releases of BIND dating from March 2018 and after, an assertion check in tsig.c detects this inconsistent state and deliberately exits. Prior to the introduction of the check the server would continue operating in an inconsistent state, with potentially harmful results.

Severity

7.5 (High)


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

CWE

An error in BIND code which checks the validity of messages containing TSIG resource records can be exploited by an attacker to trigger an assertion failure in tsig.c, resulting in denial of service to clients. BIND 9.0.0 -> 9.11.18, 9.12.0 -> 9.12.4-P2, 9.14.0 -> 9.14.11, 9.16.0 -> 9.16.2, and releases 9.17.0 -> 9.17.1 of the 9.17 experimental development branch. All releases in the obsolete 9.13 and 9.15 development branches. All releases of BIND Supported Preview Edition from 9.9.3-S1 -> 9.11.18-S1.

Assigner

isc mitre root

References

12 references

URL	Tags
https://kb.isc.org/docs/cve-2020-8617	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2020/05/19/4	mailing-listx_refsource_MLIST
https://www.debian.org/security/2020/dsa-4689	vendor-advisoryx_refsource_DEBIAN
https://security.netapp.com/advisory/ntap-2020052…	x_refsource_CONFIRM
http://packetstormsecurity.com/files/157836/BIND-…	x_refsource_MISC
https://usn.ubuntu.com/4365-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4365-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Impacted products

1 product

Vendor	Product	Version
ISC	BIND9	Affected: 9.0.0 -> 9.11.18, 9.12.0 -> 9.12.4-P2, 9.14.0 -> 9.14.11, 9.16.0 -> 9.16.2, and releases 9.17.0 -> 9.17.1 of the 9.17 experimental development branch. All releases in the obsolete 9.13 and 9.15 development branches. All releases of BIND Supported Preview Edition from 9.9.3-S1 -> 9.11.18-S1

Date Public

2020-05-19 00:00

Show details on NVD website

JSON

To clipboard

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              "name": "[debian-lts-announce] 20200530 [SECURITY] [DLA 2227-1] bind9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html"
            },
            {
              "name": "FEDORA-2020-2d89cbcfd9",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/"
            },
            {
              "name": "FEDORA-2020-f9dcd4e9d5",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/"
            },
            {
              "name": "openSUSE-SU-2020:1699",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html"
            },
            {
              "name": "openSUSE-SU-2020:1701",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.11.19\n    BIND 9.14.12\n    BIND 9.16.3\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    BIND 9.11.19-S1"
          }
        ],
        "source": {
          "discovery": "EXTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "None known."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2020-8617",
    "datePublished": "2020-05-19T14:05:16.241Z",
    "dateReserved": "2020-02-05T00:00:00.000Z",
    "dateUpdated": "2024-09-16T20:26:32.566Z",
    "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-2020-29429

CVE-2020-8617 (GCVE-0-2020-8617)

Tags

Sightings

Nomenclature

Related by attack behaviour