CVEvulnerability

CVE-2022-20001

7.8 HIGH Published 2022-03-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-03-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-427, CWE-74

Description

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.

Affected configurations

• fishshell fish (>= 3.1.0 <= 3.3.1) • fedoraproject fedora 35 • fedoraproject fedora 36 • debian debian linux 11.0

Related

Weakness · CWE (2)

  • CWE-427 Uncontrolled Search Path Element weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness

References