CVE-2021-22893

Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and...

Basic Information

CVE State: PUBLISHED
Reserved Date: January 06, 2021
Published Date: April 23, 2021
Last Updated: February 04, 2025
Vendor: n/a
Product: Pulse Connect Secure
Description: Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and Pulse Secure Collaboration features of Pulse Connect Secure that can allow an unauthenticated user to perform remote arbitrary code execution on the Pulse Connect Secure gateway. This vulnerability has been exploited in the wild.

CVSS Scores

SSVC Information

Exploitation: active
Automatable: Yes
Technical Impact: total

Exploit Status

Exploited in the Wild: Yes (added 2021-11-03 00:00:00 UTC) Source
Proof of Concept Available: Yes (added 2021-04-21 14:39:42 UTC) Source
Used in Malware: Yes (added 2021-11-03 00:00:00 UTC) Source

References

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/ 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 https://kb.cert.org/vuls/id/213092

Known Exploited Vulnerability Information

Source	Added Date
CISA	2021-11-03 00:00:00 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

orangmuda/CVE-2021-22893

Type: github • Created: 2021-10-03 21:46:58 UTC • Stars: 7

Proof On Concept — Pulse Secure CVE-2021-22893

MRLEE123456/CVE-2021-22893

Type: github • Created: 2021-04-21 14:39:42 UTC • Stars: 0

Pulse Connect Secure RCE Vulnerability (CVE-2021-22893)

ZephrFish/CVE-2021-22893_HoneyPoC2

Type: github • Created: 2021-04-21 09:48:57 UTC • Stars: 47

DO NOT RUN THIS.