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CVE-2022-31252— permissions: chkstat does not check for group-writable parent directories or target files in safeOpen()

Quick assessment

Affected
SUSE SUSE Linux Enterprise Server 12-SP5
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

openSUSE是德国SUSE公司的一套基于Linux的自由操作系统与开源社区项目。 openSUSE 存在安全漏洞。攻击者利用该漏洞通过 chkstat() 绕过 SUSE 权限的访问限制，以读取或更改文件。

CVSS 4.4 · Medium EPSS 0.15% · P4
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I. Basic Information for CVE-2022-31252

Vulnerability Information
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Vulnerability Title
permissions: chkstat does not check for group-writable parent directories or target files in safeOpen()
Source: CVE Program / CVE List V5
Vulnerability Description
A Incorrect Authorization vulnerability in chkstat of SUSE Linux Enterprise Server 12-SP5; openSUSE Leap 15.3, openSUSE Leap 15.4, openSUSE Leap Micro 5.2 did not consider group writable path components, allowing local attackers with access to a group what can write to a location included in the path to a privileged binary to influence path resolution. This issue affects: SUSE Linux Enterprise Server 12-SP5 permissions versions prior to 20170707. openSUSE Leap 15.3 permissions versions prior to 20200127. openSUSE Leap 15.4 permissions versions prior to 20201225. openSUSE Leap Micro 5.2 permissions versions prior to 20181225.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
openSUSE 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openSUSE是德国SUSE公司的一套基于Linux的自由操作系统与开源社区项目。 openSUSE 存在安全漏洞。攻击者利用该漏洞通过 chkstat() 绕过 SUSE 权限的访问限制，以读取或更改文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SUSE SUSE Linux Enterprise Server 12-SP5 permissions ~ 20170707 -
openSUSE openSUSE Leap 15.3 permissions ~ 20200127 -
openSUSE openSUSE Leap 15.4 permissions ~ 20201225 -
openSUSE openSUSE Leap Micro 5.2 permissions ~ 20181225 -

II. Public POCs for CVE-2022-31252

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III. Intelligence Information for CVE-2022-31252

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Vendor Advisories for CVE-2022-31252 (1)

IV. Related Vulnerabilities

Same product: SUSE Linux Enterprise Server 12-SP5
Same vendor: SUSE
Same weakness: CWE-863

V. Comments for CVE-2022-31252

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