RHEL 7 : instack-undercloud (RHSA-2017:2557)

medium Nessus Plugin ID 210329

Synopsis

The remote Red Hat host is missing a security update for instack-undercloud.

Description

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2017:2557 advisory.

instack-undercloud provides a collection of scripts and elements that can be used to install an OpenStack undercloud (using python-instack).

Security Fix(es):

* A flaw was found in instack-undercloud where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files. (CVE-2017-7549)

This issue was discovered by Matthew Booth (Red Hat).

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 RHEL instack-undercloud package based on the guidance in RHSA-2017:2557.

Plugin Details

Severity: Medium

ID: 210329

File Name: redhat-RHSA-2017-2557.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/5/2024

Updated: 11/5/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS Score Source: CVE-2017-7549

CVSS v3

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.6

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:instack-undercloud, cpe:/o:redhat:enterprise_linux:7

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/30/2017

Vulnerability Publication Date: 8/14/2017

Reference Information

CVE: CVE-2017-7549

CWE: 377

RHSA: 2017:2557

Detections

Analytics