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CVE-2022-31250— keylime %post scriplet allows for privilege escalation from keylime user to root

Quick assessment

Affected
openSUSE Tumbleweed
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 Tumbleweed是openSUSE项目的一个开源系统。 openSUSE Tumbleweed keylime 6.4.2-1.1之前版本存在安全漏洞，该漏洞源于存在一个UNIX符号链接（Symlink）跟随漏洞，允许本地攻击者从keylime用户升级到root用户。

CVSS 7.1 · High EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1612 · Build Image on Host
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I. Basic Information for CVE-2022-31250

Vulnerability Information
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Vulnerability Title
keylime %post scriplet allows for privilege escalation from keylime user to root
Source: CVE Program / CVE List V5
Vulnerability Description
A UNIX Symbolic Link (Symlink) Following vulnerability in keylime of openSUSE Tumbleweed allows local attackers to escalate from the keylime user to root. This issue affects: openSUSE Tumbleweed keylime versions prior to 6.4.2-1.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
openSUSE Tumbleweed 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openSUSE Tumbleweed是openSUSE项目的一个开源系统。 openSUSE Tumbleweed keylime 6.4.2-1.1之前版本存在安全漏洞，该漏洞源于存在一个UNIX符号链接（Symlink）跟随漏洞，允许本地攻击者从keylime用户升级到root用户。
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
openSUSE Tumbleweed keylime ~ 6.4.2-1.1 -

II. Public POCs for CVE-2022-31250

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III. Intelligence Information for CVE-2022-31250

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Vendor Advisories for CVE-2022-31250 (1)

IV. Related Vulnerabilities

Same product: Tumbleweed
Same vendor: openSUSE
Same weakness: CWE-59

V. Comments for CVE-2022-31250

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