Vulnerability-Lookup

CNVD-2019-05087

Vulnerability from cnvd - Published: 2019-02-22

Title

QEMU目录遍历漏洞

Description

QEMU是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。Media Transfer Protocol（MTP）是其中的一个媒体传输协议。 QEMU中的MTP存在安全漏洞。攻击者可利用该漏洞在QEMU进程的上下文中导航主机文件系统，进而读取该进程可访问的任意文件。

Severity

低

Patch Name

QEMU目录遍历漏洞的补丁

Patch Description

QEMU是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。Media Transfer Protocol（MTP）是其中的一个媒体传输协议。 QEMU中的MTP存在安全漏洞。攻击者可利用该漏洞在QEMU进程的上下文中导航主机文件系统，进而读取该进程可访问的任意文件。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，详情请关注厂商主页： https://www.qemu.org/

Reference

https://www.securityfocus.com/bid/106212

Impacted products

Name
QEMU QEMU 0

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "106212"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-16872",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16872"
    }
  },
  "description": "QEMU\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002Media Transfer Protocol\uff08MTP\uff09\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5a92\u4f53\u4f20\u8f93\u534f\u8bae\u3002\n\nQEMU\u4e2d\u7684MTP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728QEMU\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u5bfc\u822a\u4e3b\u673a\u6587\u4ef6\u7cfb\u7edf\uff0c\u8fdb\u800c\u8bfb\u53d6\u8be5\u8fdb\u7a0b\u53ef\u8bbf\u95ee\u7684\u4efb\u610f\u6587\u4ef6\u3002",
  "discovererName": "Michael Hanselmann",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.qemu.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-05087",
  "openTime": "2019-02-22",
  "patchDescription": "QEMU\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002Media Transfer Protocol\uff08MTP\uff09\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5a92\u4f53\u4f20\u8f93\u534f\u8bae\u3002\r\n\r\nQEMU\u4e2d\u7684MTP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728QEMU\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u5bfc\u822a\u4e3b\u673a\u6587\u4ef6\u7cfb\u7edf\uff0c\u8fdb\u800c\u8bfb\u53d6\u8be5\u8fdb\u7a0b\u53ef\u8bbf\u95ee\u7684\u4efb\u610f\u6587\u4ef6\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": "QEMU\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 0"
  },
  "referenceLink": "https://www.securityfocus.com/bid/106212",
  "serverity": "\u4f4e",
  "submitTime": "2018-12-18",
  "title": "QEMU\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e"
}

CVE-2018-16872 (GCVE-0-2018-16872)

Vulnerability from cvelistv5 – Published: 2018-12-13 21:00 – Updated: 2024-08-05 10:32

Summary

A flaw was found in qemu Media Transfer Protocol (MTP). The code opening files in usb_mtp_get_object and usb_mtp_get_partial_object and directories in usb_mtp_object_readdir doesn't consider that the underlying filesystem may have changed since the time lstat(2) was called in usb_mtp_object_alloc, a classical TOCTTOU problem. An attacker with write access to the host filesystem shared with a guest can use this property to navigate the host filesystem in the context of the QEMU process and read any file the QEMU process has access to. Access to the filesystem may be local or via a network share protocol such as CIFS.

Severity

5 (Medium)


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

CWE

CWE-367

Assigner

redhat redhat root

References

9 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/106212	vdb-entryx_refsource_BID
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://usn.ubuntu.com/3923-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://www.debian.org/security/2019/dsa-4454	vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/May/76	mailing-listx_refsource_BUGTRAQ
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
[UNKNOWN]	QEMU:	Affected: n/a

Date Public

2018-12-13 00:00

Show details on NVD website

JSON

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    ],
    "cna": {
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          "versions": [
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        }
      ],
      "metrics": [
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            "privilegesRequired": "HIGH",
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    "state": "PUBLISHED"
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  "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.

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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.

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CNVD-2019-05087

CVE-2018-16872 (GCVE-0-2018-16872)

Tags

Sightings

Nomenclature

Related by attack behaviour