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FreeBSD : sudo-rs -- Authenticating user not recorded properly in timestamp (bf6c9252-c2ec-11f0-8372-98b78501ef2a)

medium Nessus Plugin ID 275571

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the bf6c9252-c2ec-11f0-8372-98b78501ef2a advisory.

 Trifecta Tech Foundation reports:
 With Defaults targetpw (or Defaults rootpw) enabled, the password of the target account (or root account) instead of the invoking user is used for authentication.
 sudo-rs prior to 0.2.10 incorrectly recorded the invoking users UID instead of the authenticated-as user's UID in the authentication timestamp. Any later sudo invocation on the same terminal while the timestamp was still valid would use that timestamp, potentially bypassing new authentication even if the policy would have required it.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://cveawg.mitre.org/api/cve/CVE-2025-64517

http://www.nessus.org/u?6b6b5a4b

Plugin Details

Severity: Medium

ID: 275571

File Name: freebsd_pkg_bf6c9252c2ec11f0837298b78501ef2a.nasl

Version: 1.1

Type: local

Published: 11/17/2025

Updated: 11/17/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:L/AC:L/Au:M/C:N/I:C/A:N

CVSS Score Source: CVE-2025-64517

CVSS v3

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.9

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:sudo-rs-coexist, p-cpe:/a:freebsd:freebsd:sudo-rs, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 11/16/2025

Vulnerability Publication Date: 11/12/2025

Reference Information

CVE: CVE-2025-64517