Linux Sudo | Breaking Cybersecurity News | The Hacker News

Joe Vennix of Apple security has found another significant vulnerability in sudo utility that under a specific configuration could allow low privileged users or malicious programs to execute arbitrary commands with administrative ('root') privileges on Linux or macOS systems. Sudo is one of the most important, powerful, and commonly used utilities that comes as a core command pre-installed on macOS and almost every UNIX or Linux-based operating system. Sudo has been designed to let users run apps or commands with the privileges of a different user without switching environments. Sudo Vulnerability (CVE-2019-18634) The newly discovered privilege escalation vulnerability, tracked as CVE-2019-18634 , in question stems from a stack-based buffer overflow issue that resides in Sudo versions before 1.8.26. According to Vennix, the flaw can only be exploited when the " pwfeedback " option is enabled in the sudoers configuration file, a feature that provides visua

Attention Linux Users! A new vulnerability has been discovered in Sudo —one of the most important, powerful, and commonly used utilities that comes as a core command installed on almost every UNIX and Linux-based operating system. The vulnerability in question is a sudo security policy bypass issue that could allow a malicious user or a program to execute arbitrary commands as root on a targeted Linux system even when the "sudoers configuration" explicitly disallows the root access. Sudo, stands for "superuser do," is a system command that allows a user to run applications or commands with the privileges of a different user without switching environments—most often, for running commands as the root user. By default on most Linux distributions, the ALL keyword in RunAs specification in /etc/sudoers file, as shown in the screenshot, allows all users in the admin or sudo groups to run any command as any valid user on the system. However, since privilege separ

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