CVE•Published 2021-05-11•2 articles on news•6 live references•NVD data
CVE-2021-31207
Vulnerability data via CVEDB (Shodan)
CVSS v3.1
6.6
MEDIUM
EPSS percentile
100
Exploit Prediction Scoring System · top 0% of all CVEs
Description
Microsoft Exchange Server Security Feature Bypass Vulnerability
Timeline
Published 2021-05-11
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag932 hosts
vuln:CVE-2021-31207Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Microsoft Exchange Server" version:"2013"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Exchange Server"HTTP body or banner mentions "Exchange Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2021-31207Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-31207Censys host search filtered to this CVE id.
grep.app
CVE-2021-31207Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-31207GitHub code search for direct mentions.
Google dork
"CVE-2021-31207" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (4)
CVE-2021-312074 repos
GhostTroops/TOPShell
TOP All bugbounty pentesting CVE-2023- POC Exp RCE example payload Things
Ostorlab/KEVunknown
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
signorrayan/RedTeam_toolkitPython
Red Team Toolkit is an Open-Source Django Offensive Web-App which is keeping the useful offensive tools used in the red-teaming together.
kh4sh3i/exchange-penetration-testingPowerShell
The great Microsoft exchange hack: A penetration tester’s guide (exchange penetration testing)