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Privilege escalation is the act of exploiting a bug, a design flaw, or a configuration oversight in an operating system or software application to gain elevated access to resources that are normally protected from an application or user.
It is a specific type of privilege escalation. [1] The confused deputy problem is often cited as an example of why capability-based security is important. Capability systems protect against the confused deputy problem, whereas access-control list–based systems do not. [2]
Leo Davidson discovered that Microsoft weakened UAC in Windows 7 through exemption of about 70 Windows programs from displaying a UAC prompt and presented a proof of concept for a privilege escalation. [29] Stefan Kanthak presented a proof of concept for a privilege escalation via UAC's installer detection and IExpress installers. [30]
Although it is a local privilege escalation, remote attackers can use it in conjunction with other exploits that allow remote execution of non-privileged code to achieve remote root access on a computer. [1] The attack itself does not leave traces in the system log. [2]
sudo centralizes all privilege authorization information in a single configuration file, /etc/sudoers, which contains a list of users and the privileged applications and actions that those users are permitted to use. The grammar of the sudoers file is intended to be flexible enough to cover many different scenarios, such as placing restrictions ...
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In computing, privilege is defined as the delegation of authority to perform security-relevant functions on a computer system. [1] A privilege allows a user to perform an action with security consequences. Examples of various privileges include the ability to create a new user, install software, or change kernel functions.
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