CVE-2021-22893

CVSS V2 High 7.5 CVSS V3 Critical 10
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.
Overview
  • CVE ID
  • CVE-2021-22893
  • Assigner
  • support@hackerone.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-04-23T17:15:08
  • Last Modified Date
  • 2022-10-24T17:17:23
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r2:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r2.1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r3:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r3.1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r3.2:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r3.3:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r3.5:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r4:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r4.1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r5.0:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0:r6.0:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r10.0:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r10.2:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r11.0:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r11.1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r11.3:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r2:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r3:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r4:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r4.1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r4.2:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r4.3:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r5:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r6:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r7:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r8:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r8.1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r8.2:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r8.4:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r9:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r9.1:*:*:*:*:*:* 1 OR
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.1:r9.2:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 10
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6
References
Reference URL Reference Tags
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/ Vendor Advisory
https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html Third Party Advisory
https://kb.cert.org/vuls/id/213092 Third Party Advisory US Government Resource
https://blog.pulsesecure.net/pulse-connect-secure-security-update/ Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-22893
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22893
History
Created Old Value New Value Data Type Notes
2022-05-10 07:13:57 Added to TrackCVE
2022-12-06 02:43:08 cve-assignments@hackerone.com support@hackerone.com CVE Assigner updated
2022-12-06 02:43:08 2021-04-23T17:15Z 2021-04-23T17:15:08 CVE Published Date updated
2022-12-06 02:43:08 2022-10-24T17:17:23 CVE Modified Date updated
2022-12-06 02:43:08 Analyzed Vulnerability Status updated