A new Linux vulnerability known as 'Dirty Pipe' allows local users to gain root privileges through publicly available exploits. Today, security researcher Max Kellermann responsibly disclosed the ...

干货福利，第一时间送达！ 最近有小伙伴说没有收到当天的文章推送，这是因为微信更改了推送机制，导致没有星标公众号的小伙伴刷不到当天推送的文章，无法接收到一些比较实用的知识和资讯。所以建议大家加个星标⭐️，以后就能第一时间收到推送了。

Logging in as the root user should never be done on Linux. Using the root account could lead to disaster. Sudo is the preferred method of gaining elevated privileges. When I first started using Linux ...

A new Linux NetFilter kernel flaw has been discovered, allowing unprivileged local users to escalate their privileges to root level, allowing complete control over a system. The CVE-2023-32233 ...

IT之家 6 月 18 日消息，安全研究人员发现了两种新的本地权限提升漏洞（LPE），攻击者可以利用这些漏洞完全控制系统，或获得 root 权限，影响主要的 Linux 发行版。这一发现引起了全球系统管理员的警惕。 第一个漏洞，编号 CVE-2025-6018，存在于 openSUSE Leap 15 和 ...

为避免直接使用root账号带来的风险，同时让普通用户能执行必要的管理员操作（如安装软件、修改配置），sudo命令应运而生。sudo（全称为“superuser do”）的核心功能是“让普通用户在授权范围内，临时以root或其他用户身份执行命令”，是Linux系统中保障安全与灵活性的关键工具。

Attackers can now gain root privileges on millions of Linux systems — by exploiting an easy-to-exploit, newly discovered buffer overflow flaw in a common library used on most major distributions of ...

A newly discovered vulnerability in the Linux kernel allows attackers with access to a system to extend their rights and take over the system. Working test exploits for the kernels of current Linux ...

In the Linux Journal article “Implementing Encrypted Home Directories” (August 2003), I described how to encrypt home directories transparently. This article describes how to implement another ...