CVE-2021-31207

Microsoft Exchange Server Security Feature Bypass Vulnerability
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.6 MEDIUM
NETWORK
HIGH
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
microsoftCNA
6.6 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 99%
VendorProductVersion
microsoftexchange_server
15.0.0.0 ≤
𝑥
< 15.0.1497.18
microsoftexchange_server
15.2.0.0 ≤
𝑥
< 15.2.858.12
microsoftexchange_server
15.1.0.0 ≤
𝑥
< 15.1.2242.10
microsoftexchange_server
15.1.0.0 ≤
𝑥
< 15.1.2176.14
microsoftexchange_server
15.2.0.0 ≤
𝑥
< 15.2.792.15
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207
https://www.zerodayinitiative.com/advisories/ZDI-21-819/
http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207
https://www.zerodayinitiative.com/advisories/ZDI-21-819/