Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 47.2%; technical severity is CVSS 10.0.
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.
Who should care
- Teams operating Connect Secure, Pulse Connect Secure
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Connect Secure, Pulse Connect Secure is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- CERT/CC Security patch 213092
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Patch
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CWE
- CWE-287
- Affected versions
- Ivanti Connect Secure (Version 9.0 | Version 9.0 | Version 9.0 | Version 9.0); Ivanti Pulse Connect Secure
- Fixed versions
- No explicit fixed version is currently recorded.
- Published
- 23 April 2021
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 47.2%
- Signal calculated at 82