Vulnerability-Lookup

CNVD-2017-35132

Vulnerability from cnvd - Published: 2017-11-27

Title

libvirt TLS证书验证漏洞

Description

libvirt是一套免费、开源的支持Linux下主流虚拟化工具的C函数库。 Libvirt 2.3.0及更高版本存在TLS证书验证漏洞。该漏洞产生的原因是libvirt传递到QEMU的默认配置"verify-peer=no"错误，这导致默认情况下不验证SSL/TLS证书。

Severity

中

Patch Name

libvirt TLS证书验证漏洞的补丁

Patch Description

libvirt是一套免费、开源的支持Linux下主流虚拟化工具的C函数库。 Libvirt 2.3.0及更高版本存在TLS证书验证漏洞。该漏洞产生的原因是libvirt传递到QEMU的默认配置"verify-peer=no"错误，这导致默认情况下不验证SSL/TLS证书。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

厂商已发布漏洞修复程序，请及时关注更新： https://www.redhat.com/archives/libvirt-announce/2017-October/msg00001.html

Reference

https://www.debian.org/security/2017/dsa-4003

Impacted products

Name
libvirt libvirt >=2.3.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-1000256"
    }
  },
  "description": "libvirt\u662f\u4e00\u5957\u514d\u8d39\u3001\u5f00\u6e90\u7684\u652f\u6301Linux\u4e0b\u4e3b\u6d41\u865a\u62df\u5316\u5de5\u5177\u7684C\u51fd\u6570\u5e93\u3002\r\n\r\nLibvirt 2.3.0\u53ca\u66f4\u9ad8\u7248\u672c\u5b58\u5728TLS\u8bc1\u4e66\u9a8c\u8bc1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662flibvirt\u4f20\u9012\u5230QEMU\u7684\u9ed8\u8ba4\u914d\u7f6e\"verify-peer=no\"\u9519\u8bef\uff0c\u8fd9\u5bfc\u81f4\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4e0d\u9a8c\u8bc1SSL/TLS\u8bc1\u4e66\u3002",
  "discovererName": "unknown",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.redhat.com/archives/libvirt-announce/2017-October/msg00001.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-35132",
  "openTime": "2017-11-27",
  "patchDescription": "libvirt\u662f\u4e00\u5957\u514d\u8d39\u3001\u5f00\u6e90\u7684\u652f\u6301Linux\u4e0b\u4e3b\u6d41\u865a\u62df\u5316\u5de5\u5177\u7684C\u51fd\u6570\u5e93\u3002\r\n\r\nLibvirt 2.3.0\u53ca\u66f4\u9ad8\u7248\u672c\u5b58\u5728TLS\u8bc1\u4e66\u9a8c\u8bc1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662flibvirt\u4f20\u9012\u5230QEMU\u7684\u9ed8\u8ba4\u914d\u7f6e\"verify-peer=no\"\u9519\u8bef\uff0c\u8fd9\u5bfc\u81f4\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4e0d\u9a8c\u8bc1SSL/TLS\u8bc1\u4e66\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": "libvirt TLS\u8bc1\u4e66\u9a8c\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "libvirt libvirt \u003e=2.3.0"
  },
  "referenceLink": "https://www.debian.org/security/2017/dsa-4003",
  "serverity": "\u4e2d",
  "submitTime": "2017-10-20",
  "title": "libvirt TLS\u8bc1\u4e66\u9a8c\u8bc1\u6f0f\u6d1e"
}

CVE-2017-1000256 (GCVE-0-2017-1000256)

Vulnerability from cvelistv5 – Published: 2017-10-31 15:00 – Updated: 2024-08-05 22:00

Summary

libvirt version 2.3.0 and later is vulnerable to a bad default configuration of "verify-peer=no" passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://www.redhat.com/archives/libvirt-announce/…	mailing-listx_refsource_MLIST
https://www.mail-archive.com/debian-bugs-dist%40l…	x_refsource_MISC
http://www.debian.org/security/2017/dsa-4003	vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/security/cve/CVE-2017-1000256	x_refsource_CONFIRM

Date Public

2017-10-31 00:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-05T22:00:39.668Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[libvirt-announce] 20171016 LSN-2017-0002 - TLS certificate verification disabled for clients",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://www.redhat.com/archives/libvirt-announce/2017-October/msg00001.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1556251.html"
          },
          {
            "name": "DSA-4003",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2017/dsa-4003"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2017-1000256"
          }
        ],
        "title": "CVE Program Container"
      }
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    "cna": {
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      "dateAssigned": "2017-10-12T00:00:00.000Z",
      "datePublic": "2017-10-31T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "value": "libvirt version 2.3.0 and later is vulnerable to a bad default configuration of \"verify-peer=no\" passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default."
        }
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      ],
      "providerMetadata": {
        "dateUpdated": "2017-11-06T10:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "[libvirt-announce] 20171016 LSN-2017-0002 - TLS certificate verification disabled for clients",
          "tags": [
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          ],
          "url": "https://www.redhat.com/archives/libvirt-announce/2017-October/msg00001.html"
        },
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        },
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          "tags": [
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            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2017/dsa-4003"
        },
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          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2017-1000256"
        }
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      "x_legacyV4Record": {
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          "STATE": "PUBLIC"
        },
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        },
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            },
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            },
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}

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.

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CNVD-2017-35132

CVE-2017-1000256 (GCVE-0-2017-1000256)

Tags

Sightings

Nomenclature

Related by attack behaviour