this post was submitted on 16 Apr 2025
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Linux

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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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[–] isVeryLoud 6 points 5 days ago (1 children)

Ouch, how did this happen, and why have patches sat unreviewed?

[–] [email protected] 3 points 5 days ago

Here they talk about the issue and its limitations and it seems they missed the workaround mentioned below in the writeup:
https://gitlab.gnome.org/GNOME/yelp/-/issues/221#note_2392999

This attack has some limitations:

  • Attacker needs to know the unix username of the victim.
  • Browsers ask the user for permission on redirects to custom schemes.

However, the initial current working directory (CWD) of applications started by GNOME (e.g., using Alt+F2 or dock shortcuts) is the user's home directory. As a result, the CWD of Chrome and Firefox is also set to the user's home directory. We can abuse this behavior to point to the victim's Downloads folder and bypass the first condition.

https://gist.github.com/parrot409/e970b155358d45b298d7024edd9b17f2