WID-SEC-W-2023-1192
Vulnerability from csaf_certbund - Published: 2021-09-09 22:00 - Updated: 2023-05-10 22:00Summary
Red Hat OpenStack: Schwachstelle ermöglicht Denial of Service
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Red Hat OpenStack ist eine Sammlung von Diensten, um Cloud-Computing in Form von Infrastructure as a Service (IaaS) bereitstellen zu können.
Angriff: Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Red Hat OpenStack ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - UNIX
- Linux
Es existiert eine Schwachstelle in Red Hat OpenStack. Der Fehler besteht in der Komponente Neutron aufgrund einer unsachgemäßen Eingabevalidierung. Durch die Erstellung von speziellen "extra_dhcp_opts"-Werten ist es möglich, die dnsmasq-Konfiguration zu manipulieren, Parameter für Tenants zu ändern, die dieselbe Schnittstelle nutzen oder das Verhalten des Daemons zu verändern. Ein entfernter authentisierter Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand auszulösen.
Affected products
Known affected
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
Red Hat Enterprise Linux
Red Hat
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— |
References
9 references
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "Red Hat OpenStack ist eine Sammlung von Diensten, um Cloud-Computing in Form von Infrastructure as a Service (IaaS) bereitstellen zu k\u00f6nnen.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Red Hat OpenStack ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- UNIX\n- Linux",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2023-1192 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2023-1192.json"
},
{
"category": "self",
"summary": "WID-SEC-2023-1192 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1192"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6067-1 vom 2023-05-10",
"url": "https://ubuntu.com/security/notices/USN-6067-1"
},
{
"category": "external",
"summary": "Red Hat Customer Portal vom 2021-09-09",
"url": "https://access.redhat.com/errata/RHSA-2021:3481"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2021:3502 vom 2021-09-13",
"url": "https://access.redhat.com/errata/RHSA-2021:3502"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2021:3503 vom 2021-09-13",
"url": "https://access.redhat.com/errata/RHSA-2021:3503"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2021:3488 vom 2021-09-15",
"url": "https://access.redhat.com/errata/RHSA-2021:3488"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-2781 vom 2021-10-11",
"url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-3027 vom 2022-05-26",
"url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html"
}
],
"source_lang": "en-US",
"title": "Red Hat OpenStack: Schwachstelle erm\u00f6glicht Denial of Service",
"tracking": {
"current_release_date": "2023-05-10T22:00:00.000+00:00",
"generator": {
"date": "2024-08-15T17:50:43.330+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.3.5"
}
},
"id": "WID-SEC-W-2023-1192",
"initial_release_date": "2021-09-09T22:00:00.000+00:00",
"revision_history": [
{
"date": "2021-09-09T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2021-09-12T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2021-09-14T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2021-10-11T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2022-05-26T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2023-05-10T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von Ubuntu aufgenommen"
}
],
"status": "final",
"version": "6"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Debian Linux",
"product": {
"name": "Debian Linux",
"product_id": "2951",
"product_identification_helper": {
"cpe": "cpe:/o:debian:debian_linux:-"
}
}
}
],
"category": "vendor",
"name": "Debian"
},
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Enterprise Linux",
"product": {
"name": "Red Hat Enterprise Linux",
"product_id": "67646",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:-"
}
}
},
{
"category": "product_name",
"name": "Red Hat OpenStack \u003c 16.1",
"product": {
"name": "Red Hat OpenStack \u003c 16.1",
"product_id": "849270",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:openstack:16.1"
}
}
}
],
"category": "vendor",
"name": "Red Hat"
},
{
"branches": [
{
"category": "product_name",
"name": "Ubuntu Linux",
"product": {
"name": "Ubuntu Linux",
"product_id": "T000126",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:-"
}
}
}
],
"category": "vendor",
"name": "Ubuntu"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2021-40085",
"notes": [
{
"category": "description",
"text": "Es existiert eine Schwachstelle in Red Hat OpenStack. Der Fehler besteht in der Komponente Neutron aufgrund einer unsachgem\u00e4\u00dfen Eingabevalidierung. Durch die Erstellung von speziellen \"extra_dhcp_opts\"-Werten ist es m\u00f6glich, die dnsmasq-Konfiguration zu manipulieren, Parameter f\u00fcr Tenants zu \u00e4ndern, die dieselbe Schnittstelle nutzen oder das Verhalten des Daemons zu ver\u00e4ndern. Ein entfernter authentisierter Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand auszul\u00f6sen."
}
],
"product_status": {
"known_affected": [
"2951",
"67646",
"T000126"
]
},
"release_date": "2021-09-09T22:00:00.000+00:00",
"title": "CVE-2021-40085"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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