Scientific Linux Security Update : grub2 on SL7.x x86_64 (20151215)

medium Nessus Plugin ID 87586

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Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

A flaw was found in the way the grub2 handled backspace characters entered in username and password prompts. An attacker with access to the system console could use this flaw to bypass grub2 password protection and gain administrative access to the system.
(CVE-2015-8370)

This update also fixes the following bug :

- When upgrading from Scientific Linux 7.1 and earlier, a configured boot password was not correctly migrated to the newly introduced user.cfg configuration files. This could possibly prevent system administrators from changing grub2 configuration during system boot even if they provided the correct password. This update corrects the password migration script and the incorrectly generated user.cfg file.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 87586

File Name: sl_20151215_grub2_on_SL7_x.nasl

Version: 2.4

Type: local

Agent: unix

Family: Scientific Linux Local Security Checks

Published: 12/22/2015

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.9

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

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:grub2, p-cpe:/a:fermilab:scientific_linux:grub2-tools, x-cpe:/o:fermilab:scientific_linux, p-cpe:/a:fermilab:scientific_linux:grub2-debuginfo, p-cpe:/a:fermilab:scientific_linux:grub2-efi, p-cpe:/a:fermilab:scientific_linux:grub2-efi-modules

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 12/15/2015

Vulnerability Publication Date: 12/16/2015

Reference Information

CVE: CVE-2015-8370

Detections

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