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RHEL 7 : .NET Core 3.1 on Red Hat Enterprise Linux (RHSA-2020:2939)

high Nessus Plugin ID 138505

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Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2939 advisory.

 .NET Core is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

 New versions of .NET Core that address a security vulnerability are now available. The updated versions are .NET Core SDK 3.1.106 and .NET Core Runtime 3.1.6.

 Security Fix(es):

 * .NET Core: XML source markup processing remote code execution (CVE-2020-1147)

 Default inclusions for applications built with .NET Core have been updated to reference the newest versions and their security fixes.

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

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 affected packages.

See Also

http://www.nessus.org/u?f32326b4

https://access.redhat.com/security/updates/classification/#critical

https://access.redhat.com/errata/RHSA-2020:2939

https://bugzilla.redhat.com/show_bug.cgi?id=1856929

Plugin Details

Severity: High

ID: 138505

File Name: redhat-RHSA-2020-2939.nasl

Version: 1.17

Type: local

Agent: unix

Published: 7/15/2020

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.6

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

CVSS Score Source: CVE-2020-1147

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-aspnetcore-targeting-pack-3.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-hostfxr-3.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-sdk-3.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-apphost-pack-3.1, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-netstandard-targeting-pack-2.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-templates-3.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-aspnetcore-runtime-3.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-host, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-targeting-pack-3.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-runtime-3.1

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/15/2020

Vulnerability Publication Date: 7/14/2020

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Exploitable With

Core Impact

Metasploit (SharePoint DataSet / DataTable Deserialization)

Reference Information

CVE: CVE-2020-1147

CWE: 502

IAVA: 2020-A-0304-S, 2020-A-0305-S

RHSA: 2020:2939