LFCS · Question #515
Why is the xhost program considered dangerous to use?
The correct answer is B. It allows easy access to your X server by other users. The xhost program is considered dangerous because its improper use can grant unauthorized users easy access to your X server, leading to security vulnerabilities.
Question
Options
- AIt makes it difficult to uniquely identify a computer on the network.
- BIt allows easy access to your X server by other users.
- CIt logs sensitive information to syslog.
- DIt makes your computer share network resources without any authentication.
- EIt is a graphical DNS tool with known exploits.
How the community answered
(29 responses)- A7% (2)
- B90% (26)
- E3% (1)
Why each option
The `xhost` program is considered dangerous because its improper use can grant unauthorized users easy access to your X server, leading to security vulnerabilities.
`xhost` manages X server access control, not network identification of computers.
The `xhost` command controls access to the X server, and using commands like `xhost +` or `xhost +hostname` can remove access control restrictions, allowing any user or host to connect to your X server, potentially capturing keystrokes, viewing screen content, or injecting malicious input.
`xhost` itself is an access control utility for the X server; its primary danger is not logging sensitive information to syslog.
`xhost` specifically affects X server access, not general network resource sharing without authentication.
`xhost` is an X server access control program, not a graphical DNS tool.
Concept tested: X server security and xhost command risks
Source: https://man7.org/linux/man-pages/man1/xhost.1.html
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