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CVE-2018-16888

Quick assessment

Affected
The systemd Project systemd
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.

systemd是德国软件开发者Lennart Poettering和其他人共同研发的一款基于Linux的系统和服务管理器，它兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd 237之前版本中存在安全漏洞，该漏洞源于程序在终止进程之前没有正确地检查PIDFile文件内容。本地攻击者可利用该漏洞终止其他服务或/和提升权限。

AI Predicted 7.8 Difficulty: Easy EPSS 0.29% · P20
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I. Basic Information for CVE-2018-16888

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
带着不必要的权限执行
Source: CVE Program / CVE List V5
Vulnerability Title
systemd 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
systemd是德国软件开发者Lennart Poettering和其他人共同研发的一款基于Linux的系统和服务管理器，它兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd 237之前版本中存在安全漏洞，该漏洞源于程序在终止进程之前没有正确地检查PIDFile文件内容。本地攻击者可利用该漏洞终止其他服务或/和提升权限。
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
The systemd Project systemd v237 -

II. Public POCs for CVE-2018-16888

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III. Intelligence Information for CVE-2018-16888

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Vendor Advisories for CVE-2018-16888 (4)

Mailing List Discussions for CVE-2018-16888 (1)

IV. Related Vulnerabilities

Same product: systemd
Same vendor: The systemd Project
Same weakness: CWE-250

V. Comments for CVE-2018-16888

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