FreeBSD : helvis -- arbitrary file deletion problem (0cf3480d-5fdf-11d9-b721-00065be4b5b6)

low Nessus Plugin ID 18836

Synopsis

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

Description

The setuid root elvprsv utility, used to preserve recovery helvis files, can be abused by local users to delete with root privileges.

The problem is that elvprsv deletes files when it thinks they have become corrupt. When elvprsv is pointed to a normal file then it will almost always think the file is corrupt and deletes it. This behavior may be exploited by local attackers to delete critical files.

Solution

Update the affected packages.

See Also

https://people.freebsd.org/~niels/ports/korean/helvis/issues.txt

http://www.nessus.org/u?b0ad3bf6

Plugin Details

Severity: Low

ID: 18836

File Name: freebsd_pkg_0cf3480d5fdf11d9b72100065be4b5b6.nasl

Version: 1.16

Type: local

Published: 7/13/2005

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:helvis, p-cpe:/a:freebsd:freebsd:ko-helvis, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 1/10/2005

Vulnerability Publication Date: 11/24/2004

Reference Information

CVE: CVE-2005-0120