CVE-2021-31207

Microsoft Exchange Server Security Feature Bypass Vulnerability

CVSS v3 vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-434

Threats tracking this CVE

• UAT-8099 (China) BadIIS Malware Campaign Targeting IIS Servers for SEO Fraud — HIGH

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/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31207

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