7.5

CVE-2021-34523

Warnung
Exploit

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Exchange Server Elevation of Privilege Vulnerability
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Exchange Server Version 2013 Update cumulative_update_23
Microsoft ≫ Exchange Server Version 2016 Update cumulative_update_19
Microsoft ≫ Exchange Server Version 2016 Update cumulative_update_20
Microsoft ≫ Exchange Server Version 2019 Update cumulative_update_8
Microsoft ≫ Exchange Server Version 2019 Update cumulative_update_9

03.11.2021: CISA Known Exploited Vulnerabilities (KEV) Catalog

Microsoft Exchange Server Privilege Escalation Vulnerability

Schwachstelle

Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

Beschreibung

Apply updates per vendor instructions.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 99.99% 1
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Microsoft 9 2.5 5.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Es wurden noch keine Informationen zu CWE veröffentlicht.
http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html
Third Party Advisory
Exploit
VDB Entry
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34523
Patch
Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34523
Patch
Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-822/
Third Party Advisory
VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34523
US Government Resource