WID-SEC-W-2023-1607
Vulnerability from csaf_certbund - Published: 2023-06-29 22:00 - Updated: 2023-06-29 22:00Es existiert eine Schwachstelle in Zoom Video Communications Zoom Client. In-Meeting-Chat-Nachrichten werden mit einem separaten Schlüssel pro Meeting verschlüsselt und dann zwischen Benutzergeräten und Zoom mit TLS-Verschlüsselung übertragen. Bei den betroffenen Produkten wird außerdem eine Kopie jeder Chat-Nachricht während eines Meetings nur mit TLS und nicht mit dem Schlüssel pro Meeting verschlüsselt gesendet. Ein Angreifer kann diese Schwachstelle ausnutzen, um Informationen offenzulegen.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Zoom Video Communications Zoom Client 5.15.0
Zoom Video Communications / Zoom Client
|
cpe:/a:zoom:zoom_client:5.15.0
|
— | |
|
Zoom Video Communications Zoom Client windows 5.15.1
Zoom Video Communications / Zoom Client
|
cpe:/a:zoom:zoom_client:windows_5.15.1
|
— |
{
"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": "Zoom bietet Kommunikationssoftware, die Videokonferenzen, Online-Besprechungen, Chat und mobile Zusammenarbeit kombiniert.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Zoom Video Communications Zoom Client ausnutzen, um Informationen offenzulegen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- MacOS X\n- Windows",
"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-2023-1607 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1607.json"
},
{
"category": "self",
"summary": "WID-SEC-2023-1607 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1607"
},
{
"category": "external",
"summary": "Zoom Security Bulletin vom 2023-06-29",
"url": "https://explore.zoom.us/en/trust/security/security-bulletin/"
}
],
"source_lang": "en-US",
"title": "Zoom Video Communications Zoom Client: Schwachstelle erm\u00f6glicht Offenlegung von Informationen",
"tracking": {
"current_release_date": "2023-06-29T22:00:00.000+00:00",
"generator": {
"date": "2024-08-15T17:53:57.912+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.3.5"
}
},
"id": "WID-SEC-W-2023-1607",
"initial_release_date": "2023-06-29T22:00:00.000+00:00",
"revision_history": [
{
"date": "2023-06-29T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Zoom Video Communications Zoom Client 5.15.0",
"product": {
"name": "Zoom Video Communications Zoom Client 5.15.0",
"product_id": "T028375",
"product_identification_helper": {
"cpe": "cpe:/a:zoom:zoom_client:5.15.0"
}
}
},
{
"category": "product_name",
"name": "Zoom Video Communications Zoom Client windows 5.15.1",
"product": {
"name": "Zoom Video Communications Zoom Client windows 5.15.1",
"product_id": "T028376",
"product_identification_helper": {
"cpe": "cpe:/a:zoom:zoom_client:windows_5.15.1"
}
}
}
],
"category": "product_name",
"name": "Zoom Client"
}
],
"category": "vendor",
"name": "Zoom Video Communications"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2023-36539",
"notes": [
{
"category": "description",
"text": "Es existiert eine Schwachstelle in Zoom Video Communications Zoom Client. In-Meeting-Chat-Nachrichten werden mit einem separaten Schl\u00fcssel pro Meeting verschl\u00fcsselt und dann zwischen Benutzerger\u00e4ten und Zoom mit TLS-Verschl\u00fcsselung \u00fcbertragen. Bei den betroffenen Produkten wird au\u00dferdem eine Kopie jeder Chat-Nachricht w\u00e4hrend eines Meetings nur mit TLS und nicht mit dem Schl\u00fcssel pro Meeting verschl\u00fcsselt gesendet. Ein Angreifer kann diese Schwachstelle ausnutzen, um Informationen offenzulegen."
}
],
"product_status": {
"known_affected": [
"T028375",
"T028376"
]
},
"release_date": "2023-06-29T22:00:00.000+00:00",
"title": "CVE-2023-36539"
}
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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