onyx --cves cve-2021-22893
CVE-2021-22893
- score
- <0.1
- cvss
- 10.0
- epss
- 47.2%
- published
- 2021-04-23
- kev added
- 2021-11-03
- first seen
Pulse Connect Secure 9.0R3/9.1R1 and higher contains an authentication bypass caused by vulnerabilities in Windows File Share Browser and Pulse Secure Collaboration features, letting unauthenticated attackers perform remote arbitrary code execution, exploit requires access to vulnerable features.
Timeline
How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.
- Published
- Added to CISA KEV
- Tracked by Onyx
- Public PoC
Exploit availability
Public PoC flagged by vulnx; no direct exploit link among the citations.
Weaknesses
References 16
- https://nvd.nist.gov/vuln/detail/CVE-2021-22893
- https://www.kb.cert.org/vuls/id/213092
- https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Year_in_Review_of_ZeroDays.pdf
- https://go.crowdstrike.com/rs/281-OBQ-266/images/Report2022GTR.pdf
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22893
- https://eclypsium.com/blog/infographic-a-history-of-network-device-threats-and-what-lies-ahead/
- https://www.mandiant.com/resources/blog/chinese-espionage-tactics
- https://www.paloaltonetworks.com/content/dam/pan/en_US/assets/pdf/reports/2022-unit42-ransomware-threat-report-final.pdf
- https://cyware.com/news/chinese-cyberspies-unc2630-targeting-us-and-eu-organizations-d94ac724/?web_view=true
- https://cert-in.org.in/PDF/RANSOMWARE_Report_2022.pdf
- https://static.tenable.com/marketing/whitepapers/Whitepaper-Ransomware_Ecosystem.pdf
- https://ransomware.org/blog/initial-access-vectors-for-ransomware/
- https://securelist.com/apt-trends-report-q2-2021/103517/
- https://kb.cert.org/vuls/id/213092
- https://blog.pulsesecure.net/pulse-connect-secure-security-update/
- https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html