3.3 LOW
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Local (L)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): Low (L)
- Integrity (I): None (N)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Local (L)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): Low (L)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
uutils coreutils nohup Information Disclosure via Insecure Default Output Permissions
The nohup utility in uutils coreutils creates its default output file, nohup.out, without specifying explicit restricted permissions. This causes the file to inherit umask-based permissions, typically resulting in a world-readable file (0644). In multi-user environments, this allows any user on the system to read the captured stdout/stderr output of a command, potentially exposing sensitive information. This behavior diverges from GNU coreutils, which creates nohup.out with owner-only (0600) permissions.
References
Affected products
Matching in nixpkgs
pkgs.coreutils
GNU Core Utilities
pkgs.coreutils-full
GNU Core Utilities
pkgs.policycoreutils
SELinux policy core utilities
pkgs.uutils-coreutils
Cross-platform Rust rewrite of the GNU coreutils
pkgs.coreutils-prefixed
GNU Core Utilities
pkgs.uutils-coreutils-noprefix
Cross-platform Rust rewrite of the GNU coreutils
pkgs.minimal-bootstrap.coreutils
The GNU Core Utilities
pkgs.selinuxPackages.policycoreutils
SELinux policy core utilities
pkgs.minimal-bootstrap.coreutils-musl
The GNU Core Utilities
pkgs.minimal-bootstrap.coreutils-static
The GNU Core Utilities
Package maintainers
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@mdaniels5757 Michael Daniels <nix@mdaniels.me>
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@pyrox0 Pyrox <pyrox@pyrox.dev>
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@infinisil Silvan Mosberger <contact@infinisil.com>
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@dasJ Janne Heß <janne@hess.ooo>
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@balsoft Alexander Bantyev <balsoft75@gmail.com>
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@Artturin Artturi N <artturin@artturin.com>
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@siraben Siraphob Phipathananunth <bensiraphob@gmail.com>
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@06kellyjac Jack <hello+nixpkgs@j-k.io>
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@Gskartwii Aleksi Hannula <ahannula4@gmail.com>
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@Ericson2314 John Ericson <John.Ericson@Obsidian.Systems>
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@emilytrau Emily Trau <emily+nix@downunderctf.com>
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@alejandrosame Alejandro Sánchez Medina <alejandrosanchzmedina@gmail.com>
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@RossComputerGuy Tristan Ross <tristan.ross@midstall.com>
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@numinit Morgan Jones <me+nixpkgs@numin.it>
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@matthiasbeyer Matthias Beyer <mail@beyermatthias.de>
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@GaetanLepage Gaetan Lepage <gaetan@glepage.com>