cnvd - cnvd-2023-61011

CNVD-2023-61011

Vulnerability from cnvd - Published: 2023-08-03

Title

QEMU权限提升漏洞（CNVD-2023-61011）

Description

QEMU是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU存在权限提升漏洞，该漏洞源于9p passthrough filesystem在写入文件时未能丢弃SUID/SGID位，攻击者可利用该漏洞导致存在权限升级。

Severity

中

Formal description

厂商尚未发布漏洞修复程序，请及时关注更新： https://bugzilla.redhat.com/show_bug.cgi?id=2223985

Reference

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1386

Impacted products

Name
Qemu QEMU

Show details on source website

JSON

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  "number": "CNVD-2023-61011",
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  "products": {
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  "serverity": "\u4e2d",
  "submitTime": "2023-07-30",
  "title": "QEMU\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2023-61011\uff09"
}

CVE-2023-1386 (GCVE-0-2023-1386)

Vulnerability from cvelistv5 – Published: 2023-07-24 15:19 – Updated: 2024-09-25 19:57

Summary

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. When a local user in the guest writes an executable file with SUID or SGID, none of these privileged bits are correctly dropped. As a result, in rare circumstances, this flaw could be used by malicious users in the guest to elevate their privileges within the guest and help a host local user to elevate privileges on the host.

Severity ?

3.3 (Low)


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

CWE

CWE-281 - Improper Preservation of Permissions

Assigner

redhat

References

URL

Tags

	https://access.redhat.com/security/cve/CVE-2023-1386	vdb-entryx_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2223985	issue-trackingx_refsource_REDHAT
	https://github.com/advisories/GHSA-ppj8-867g-rgjr
	https://github.com/v9fs/linux/issues/29
	https://security.netapp.com/advisory/ntap-2023083…

Impacted products

Vendor

Product

Version

n/a

qemu

Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8 Advanced Virtualization	cpe:/a:redhat:advanced_virtualization:8::el8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Fedora	Fedora
Fedora	Extra Packages for Enterprise Linux

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2023-61011

CVE-2023-1386 (GCVE-0-2023-1386)

Tags

Sightings

Nomenclature