6.6 MEDIUM
- 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): High (H)
- Availability (A): Low (L)
- 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): High (H)
- Modified Availability (MA): Low (L)
Activity log
- Created suggestion
uutils coreutils cp Unexpected Privileged Executable Creation with -p
The cp utility in uutils coreutils fails to properly handle setuid and setgid bits when ownership preservation fails. When copying with the -p (preserve) flag, the utility applies the source mode bits even if the chown operation is unsuccessful. This can result in a user-owned copy retaining original privileged bits, creating unexpected privileged executables that violate local security policies. This differs from GNU cp, which clears these bits when ownership cannot be preserved.
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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@dasJ Janne Heß <janne@hess.ooo>
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@balsoft Alexander Bantyev <balsoft75@gmail.com>
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@infinisil Silvan Mosberger <contact@infinisil.com>
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@mdaniels5757 Michael Daniels <nix@mdaniels.me>
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@pyrox0 Pyrox <pyrox@pyrox.dev>
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@siraben Siraphob Phipathananunth <bensiraphob@gmail.com>
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@Gskartwii Aleksi Hannula <ahannula4@gmail.com>
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@06kellyjac Jack <hello+nixpkgs@j-k.io>
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@emilytrau Emily Trau <emily+nix@downunderctf.com>
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@Ericson2314 John Ericson <John.Ericson@Obsidian.Systems>
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@Artturin Artturi N <artturin@artturin.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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@GaetanLepage Gaetan Lepage <gaetan@glepage.com>
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@matthiasbeyer Matthias Beyer <mail@beyermatthias.de>