RHEL 8 : dotnet5.0 (RHSA-2021:2036)

high Nessus Plugin ID 149723

Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2036 advisory.

.NET 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 that address a security vulnerability are now available. The updated versions are .NET SDK 5.0.203 and .NET Runtime 5.0.6.

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?b1c4b30b

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

https://access.redhat.com/errata/RHSA-2021:2036

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

Plugin Details

Severity: High

ID: 149723

File Name: redhat-RHSA-2021-2036.nasl

Version: 1.10

Type: local

Agent: unix

Published: 5/19/2021

Updated: 11/7/2024

Supported Sensors: Agentless 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: 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:dotnet, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-5.0, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-5.0, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-5.0, cpe:/o:redhat:rhel_eus:8.4, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-5.0, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-5.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-5.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-5.0, p-cpe:/a:redhat:enterprise_linux:netstandard-targeting-pack-2.1, p-cpe:/a:redhat:enterprise_linux:dotnet5.0, p-cpe:/a:redhat:enterprise_linux:dotnet-host, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-5.0

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: 5/19/2021

Vulnerability Publication Date: 5/11/2021

Reference Information

CVE: CVE-2021-31204

CWE: 273

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

RHSA: 2021:2036