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WID-SEC-W-2024-1897
Vulnerability from csaf_certbund - Published: 2021-07-13 22:00 - Updated: 2024-08-21 22:00Summary
Microsoft Exchange Server: Mehrere Schwachstellen
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
Microsoft Exchange Server ist das Serverprodukt für das Client-Server Groupware- und Nachrichtensystem der Firma Microsoft.
Angriff
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen und um Informationen offenzulegen.
Betroffene Betriebssysteme
- Windows
{
"document": {
"aggregate_severity": {
"text": "hoch"
},
"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": "Microsoft Exchange Server ist das Serverprodukt f\u00fcr das Client-Server Groupware- und Nachrichtensystem der Firma Microsoft.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 ausnutzen, um beliebigen Programmcode auszuf\u00fchren, um seine Privilegien zu erh\u00f6hen und um Informationen offenzulegen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- 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-2024-1897 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2024-1897.json"
},
{
"category": "self",
"summary": "WID-SEC-2024-1897 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1897"
},
{
"category": "external",
"summary": "Microsoft Leitfaden f\u00fcr Sicherheitsupdates vom 2021-07-13",
"url": "https://msrc.microsoft.com/update-guide"
},
{
"category": "external",
"summary": "Rapid7 Blog vom 2021-08-12",
"url": "https://www.rapid7.com/blog/post/2021/08/12/proxyshell-more-widespread-exploitation-of-microsoft-exchange-servers/"
},
{
"category": "external",
"summary": "The Hacker News vom 2021-08-30",
"url": "https://thehackernews.com/2021/08/new-microsoft-exchange-proxytoken-flaw.html"
},
{
"category": "external",
"summary": "CISA Known Exploited Vulnerabilities Catalog vom 2024-08-21",
"url": "https://www.cisa.gov/news-events/alerts/2024/08/21/cisa-adds-four-known-exploited-vulnerabilities-catalog"
}
],
"source_lang": "en-US",
"title": "Microsoft Exchange Server: Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2024-08-21T22:00:00.000+00:00",
"generator": {
"date": "2024-08-22T08:13:42.843+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.3.6"
}
},
"id": "WID-SEC-W-2024-1897",
"initial_release_date": "2021-07-13T22:00:00.000+00:00",
"revision_history": [
{
"date": "2021-07-13T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2021-08-08T22:00:00.000+00:00",
"number": "2",
"summary": "Schwachstellen auch bekannt als ProxyOracle bzw. ProxyShell"
},
{
"date": "2021-08-12T22:00:00.000+00:00",
"number": "3",
"summary": "Aktive Ausnutzung von CVE-2021-34473 und CVE-2021-34523"
},
{
"date": "2021-08-30T22:00:00.000+00:00",
"number": "4",
"summary": "Aktive Ausnutzung von CVE-2021-33766"
},
{
"date": "2024-08-21T22:00:00.000+00:00",
"number": "5",
"summary": "Aktive Ausnutzung von CVE-2021-31196"
}
],
"status": "final",
"version": "5"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "Cumulative Update 23",
"product": {
"name": "Microsoft Exchange Server 2013 Cumulative Update 23",
"product_id": "T014545",
"product_identification_helper": {
"cpe": "cpe:/a:microsoft:exchange_server_2013::cumulative_update_23"
}
}
}
],
"category": "product_name",
"name": "Exchange Server 2013"
},
{
"branches": [
{
"category": "product_version",
"name": "Cumulative Update 20",
"product": {
"name": "Microsoft Exchange Server 2016 Cumulative Update 20",
"product_id": "T018854",
"product_identification_helper": {
"cpe": "cpe:/a:microsoft:exchange_server_2016:cumulative_update_20"
}
}
},
{
"category": "product_version",
"name": "Cumulative Update 19",
"product": {
"name": "Microsoft Exchange Server 2016 Cumulative Update 19",
"product_id": "T019778",
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}
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"name": "Exchange Server 2016"
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{
"branches": [
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"category": "product_version",
"name": "Cumulative Update 9",
"product": {
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"product_id": "T018855",
"product_identification_helper": {
"cpe": "cpe:/a:microsoft:exchange_server_2019:cumulative_update_9"
}
}
},
{
"category": "product_version",
"name": "Cumulative Update 8",
"product": {
"name": "Microsoft Exchange Server 2019 Cumulative Update 8",
"product_id": "T019779",
"product_identification_helper": {
"cpe": "cpe:/a:microsoft:exchange_server_2019:cumulative_update_8"
}
}
}
],
"category": "product_name",
"name": "Exchange Server 2019"
}
],
"category": "vendor",
"name": "Microsoft"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2021-31196",
"notes": [
{
"category": "description",
"text": "In Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 existieren mehrere nicht n\u00e4her beschriebene Schwachstellen. Ein Angreifer kann dies ausnutzen, um beliebigen Code auszuf\u00fchren, um seine Privilegien zu erh\u00f6hen und um Informationen offenzulegen. Einige dieser Schwachstellen k\u00f6nnen von einem entfernten, anonymen Angreifer ausgenutzt werden. Die Ausnutzung einiger dieser Schwachstellen erfordert keine Nutzer-Interaktion."
}
],
"product_status": {
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"T019778",
"T014545"
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},
"release_date": "2021-07-13T22:00:00.000+00:00",
"title": "CVE-2021-31196"
},
{
"cve": "CVE-2021-31206",
"notes": [
{
"category": "description",
"text": "In Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 existieren mehrere nicht n\u00e4her beschriebene Schwachstellen. Ein Angreifer kann dies ausnutzen, um beliebigen Code auszuf\u00fchren, um seine Privilegien zu erh\u00f6hen und um Informationen offenzulegen. Einige dieser Schwachstellen k\u00f6nnen von einem entfernten, anonymen Angreifer ausgenutzt werden. Die Ausnutzung einiger dieser Schwachstellen erfordert keine Nutzer-Interaktion."
}
],
"product_status": {
"known_affected": [
"T018854",
"T019779",
"T018855",
"T019778",
"T014545"
]
},
"release_date": "2021-07-13T22:00:00.000+00:00",
"title": "CVE-2021-31206"
},
{
"cve": "CVE-2021-33766",
"notes": [
{
"category": "description",
"text": "In Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 existieren mehrere nicht n\u00e4her beschriebene Schwachstellen. Ein Angreifer kann dies ausnutzen, um beliebigen Code auszuf\u00fchren, um seine Privilegien zu erh\u00f6hen und um Informationen offenzulegen. Einige dieser Schwachstellen k\u00f6nnen von einem entfernten, anonymen Angreifer ausgenutzt werden. Die Ausnutzung einiger dieser Schwachstellen erfordert keine Nutzer-Interaktion."
}
],
"product_status": {
"known_affected": [
"T018854",
"T019779",
"T018855",
"T019778",
"T014545"
]
},
"release_date": "2021-07-13T22:00:00.000+00:00",
"title": "CVE-2021-33766"
},
{
"cve": "CVE-2021-33768",
"notes": [
{
"category": "description",
"text": "In Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 existieren mehrere nicht n\u00e4her beschriebene Schwachstellen. Ein Angreifer kann dies ausnutzen, um beliebigen Code auszuf\u00fchren, um seine Privilegien zu erh\u00f6hen und um Informationen offenzulegen. Einige dieser Schwachstellen k\u00f6nnen von einem entfernten, anonymen Angreifer ausgenutzt werden. Die Ausnutzung einiger dieser Schwachstellen erfordert keine Nutzer-Interaktion."
}
],
"product_status": {
"known_affected": [
"T018854",
"T019779",
"T018855",
"T019778",
"T014545"
]
},
"release_date": "2021-07-13T22:00:00.000+00:00",
"title": "CVE-2021-33768"
},
{
"cve": "CVE-2021-34470",
"notes": [
{
"category": "description",
"text": "In Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 existieren mehrere nicht n\u00e4her beschriebene Schwachstellen. Ein Angreifer kann dies ausnutzen, um beliebigen Code auszuf\u00fchren, um seine Privilegien zu erh\u00f6hen und um Informationen offenzulegen. Einige dieser Schwachstellen k\u00f6nnen von einem entfernten, anonymen Angreifer ausgenutzt werden. Die Ausnutzung einiger dieser Schwachstellen erfordert keine Nutzer-Interaktion."
}
],
"product_status": {
"known_affected": [
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"T018855",
"T019778",
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},
"release_date": "2021-07-13T22:00:00.000+00:00",
"title": "CVE-2021-34470"
},
{
"cve": "CVE-2021-34473",
"notes": [
{
"category": "description",
"text": "In Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 existieren mehrere nicht n\u00e4her beschriebene Schwachstellen. Ein Angreifer kann dies ausnutzen, um beliebigen Code auszuf\u00fchren, um seine Privilegien zu erh\u00f6hen und um Informationen offenzulegen. Einige dieser Schwachstellen k\u00f6nnen von einem entfernten, anonymen Angreifer ausgenutzt werden. Die Ausnutzung einiger dieser Schwachstellen erfordert keine Nutzer-Interaktion."
}
],
"product_status": {
"known_affected": [
"T018854",
"T019779",
"T018855",
"T019778",
"T014545"
]
},
"release_date": "2021-07-13T22:00:00.000+00:00",
"title": "CVE-2021-34473"
},
{
"cve": "CVE-2021-34523",
"notes": [
{
"category": "description",
"text": "In Microsoft Exchange Server 2013, Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 existieren mehrere nicht n\u00e4her beschriebene Schwachstellen. Ein Angreifer kann dies ausnutzen, um beliebigen Code auszuf\u00fchren, um seine Privilegien zu erh\u00f6hen und um Informationen offenzulegen. Einige dieser Schwachstellen k\u00f6nnen von einem entfernten, anonymen Angreifer ausgenutzt werden. Die Ausnutzung einiger dieser Schwachstellen erfordert keine Nutzer-Interaktion."
}
],
"product_status": {
"known_affected": [
"T018854",
"T019779",
"T018855",
"T019778",
"T014545"
]
},
"release_date": "2021-07-13T22:00:00.000+00:00",
"title": "CVE-2021-34523"
}
]
}
CVE-2021-34523 (GCVE-0-2021-34523)
Vulnerability from cvelistv5 – Published: 2021-07-14 17:54 – Updated: 2025-10-21 23:25
VLAI?
EPSS
Title
Microsoft Exchange Server Elevation of Privilege Vulnerability
Summary
Microsoft Exchange Server Elevation of Privilege Vulnerability
Severity ?
CWE
- Elevation of Privilege
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 |
Affected:
15.00.0 , < 15.00.1497.015
(custom)
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:* |
||||||||||||||||||||||
|
||||||||||||||||||||||||
Date Public ?
2021-07-13 07:00
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CVE-2021-34473 (GCVE-0-2021-34473)
Vulnerability from cvelistv5 – Published: 2021-07-14 17:54 – Updated: 2025-10-21 23:25
VLAI?
EPSS
Title
Microsoft Exchange Server Remote Code Execution Vulnerability
Summary
Microsoft Exchange Server Remote Code Execution Vulnerability
Severity ?
9.1 (Critical)
CWE
- Remote Code Execution
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 |
Affected:
15.00.0 , < 15.00.1497.015
(custom)
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:* |
||||||||||||||||||||||
|
||||||||||||||||||||||||
Date Public ?
2021-07-13 07:00
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CVE-2021-34470 (GCVE-0-2021-34470)
Vulnerability from cvelistv5 – Published: 2021-07-14 17:54 – Updated: 2024-08-23 15:08
VLAI?
EPSS
Title
Microsoft Exchange Server Elevation of Privilege Vulnerability
Summary
Microsoft Exchange Server Elevation of Privilege Vulnerability
Severity ?
CWE
- Elevation of Privilege
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 |
Affected:
15.00.0 , < 15.00.1497.023
(custom)
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:* |
||||||||||||
|
||||||||||||||
Date Public ?
2021-07-13 07:00
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CVE-2021-33768 (GCVE-0-2021-33768)
Vulnerability from cvelistv5 – Published: 2021-07-14 17:53 – Updated: 2024-08-03 23:58
VLAI?
EPSS
Title
Microsoft Exchange Server Elevation of Privilege Vulnerability
Summary
Microsoft Exchange Server Elevation of Privilege Vulnerability
Severity ?
CWE
- Elevation of Privilege
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 |
Affected:
15.02.0 , < 15.02.0858.015
(custom)
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:* |
|||||||||||||||||
|
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Date Public ?
2021-07-13 07:00
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CVE-2021-31196 (GCVE-0-2021-31196)
Vulnerability from cvelistv5 – Published: 2021-07-14 17:53 – Updated: 2026-01-12 21:08
VLAI?
EPSS
Title
Microsoft Exchange Server Remote Code Execution Vulnerability
Summary
Microsoft Exchange Server Remote Code Execution Vulnerability
Severity ?
CWE
- Remote Code Execution
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 |
Affected:
15.02.0 , < 15.02.0858.015
(custom)
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:* |
||||||||||||||||||||||
|
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Date Public ?
2021-07-13 07:00
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CVE-2021-33766 (GCVE-0-2021-33766)
Vulnerability from cvelistv5 – Published: 2021-07-14 17:53 – Updated: 2025-10-21 23:25
VLAI?
EPSS
Title
Microsoft Exchange Server Information Disclosure Vulnerability
Summary
Microsoft Exchange Server Information Disclosure Vulnerability
Severity ?
CWE
- Information Disclosure
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 |
Affected:
15.02.0 , < 15.02.0858.010
(custom)
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:* |
||||||||||||||||||||||
|
||||||||||||||||||||||||
Date Public ?
2021-07-13 07:00
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CVE-2021-31206 (GCVE-0-2021-31206)
Vulnerability from cvelistv5 – Published: 2021-07-14 17:53 – Updated: 2024-08-03 22:55
VLAI?
EPSS
Title
Microsoft Exchange Server Remote Code Execution Vulnerability
Summary
Microsoft Exchange Server Remote Code Execution Vulnerability
Severity ?
CWE
- Remote Code Execution
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 |
Affected:
15.02.0 , < 15.02.0858.015
(custom)
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:* |
||||||||||||||||||||||
|
||||||||||||||||||||||||
Date Public ?
2021-07-13 07:00
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Sightings
| Author | Source | Type | Date |
|---|
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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