RHEL 7 : .NET Core 3.1 on Red Hat Enterprise Linux (RHSA-2021:1547)

high Nessus Plugin ID 149442

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-2021:1547 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 3.1.115 and .NET Core Runtime 3.1.15.

Security Fix(es):

* dotnet: .NET Core single-file application privilege escalation (CVE-2021-31204)

In order for the update to be complete, self-contained applications deployed using previous versions need to be recompiled and redeployed.

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?dec17d7a

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

https://access.redhat.com/errata/RHSA-2021:1547

https://bugzilla.redhat.com/show_bug.cgi?id=1956815

Plugin Details

Severity: High

ID: 149442

File Name: redhat-RHSA-2021-1547.nasl

Version: 1.12

Type: local

Agent: unix

Published: 5/13/2021

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2021-31204

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

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

Temporal Vector: CVSS:3.0/E:U/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: 5/12/2021

Vulnerability Publication Date: 5/11/2021

Reference Information

CVE: CVE-2021-31204

CWE: 273

IAVA: 2021-A-0218-S, 2021-A-0220-S

RHSA: 2021:1547