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CVE-2022-20001

Status Candidate

Overview

fish is a command line shell. fish version 3.1.0 through version 3.3.1 is vulnerable to arbitrary code execution. git repositories can contain per-repository configuration that change the behavior of git, including running arbitrary commands. When using the default configuration of fish, changing to a directory automatically runs `git` commands in order to display information about the current repository in the prompt. If an attacker can convince a user to change their current directory into one controlled by the attacker, such as on a shared file system or extracted archive, fish will run arbitrary commands under the attacker's control. This problem has been fixed in fish 3.4.0. Note that running git in these directories, including using the git tab completion, remains a potential trigger for this issue. As a workaround, remove the `fish_git_prompt` function from the prompt.

Related Files

Gentoo Linux Security Advisory 202309-10
Posted Sep 29, 2023
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202309-10 - A vulnerability was discovered in Fish when handling git repository configuration that may lead to execution of arbitrary code Versions greater than or equal to 3.4.0 are affected.

tags | advisory, arbitrary
systems | linux, gentoo
advisories | CVE-2022-20001
SHA-256 | 572a7590ab409c9281cc1134af84314a58fce56fff13669b0c5444acd01a34e6
Download | Favorite | View
Debian Security Advisory 5234-1
Posted Sep 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5234-1 - An arbitrary code execution vulnerability was disovered in fish, a command line shell. When using the default configuraton of fish, changing to a directory automatically ran `git` commands in order to display information about the current repository in the prompt. Such repositories can contain per-repository configuration that change the behavior of git, including running arbitrary commands.

tags | advisory, arbitrary, shell, code execution
systems | linux, debian
advisories | CVE-2022-20001
SHA-256 | d6134612ed2eb603546e00e78930c6db0692023b8724bb62b9827ee351491ec4
Download | Favorite | View
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