Detections
Analytics
RHEL 8 : .NET Core (RHSA-2020:2989)
high Nessus Plugin ID 138606
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Synopsis
The remote Red Hat host is missing a security update for .NET Core.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2989 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 version is .NET Core Runtime 2.1.20 and SDK 2.1.516.
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 RHEL .NET Core package based on the guidance in RHSA-2020:2989.See Also
http://www.nessus.org/u?ae14f851
https://access.redhat.com/security/updates/classification/#critical
Plugin Details
Severity: High
ID: 138606
File Name: redhat-RHSA-2020-2989.nasl
Version: 1.18
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 7/17/2020
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:dotnet, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-2.1.5xx, cpe:/o:redhat:rhel_e4s:8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-2.1, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-2.1, p-cpe:/a:redhat:enterprise_linux:dotnet-host, p-cpe:/a:redhat:enterprise_linux:dotnet-host-fxr-2.1
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: 7/17/2020
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