Security readout for executives and security teams
Plain-English summary
CVE-2021-22938 is a command injection flaw in Pulse Connect Secure before 9.1R12. It requires an authenticated administrator using the administrator web console. The business concern is unauthorized operating-system command execution on a remote access appliance if admin credentials or sessions are misused.
Executive priority
Treat this as a focused remediation item for Pulse Connect Secure estates. It is not evidenced as actively exploited here, but command injection on a remote access platform warrants timely upgrade and admin-access review.
Technical view
The CVE describes CWE-77 command injection through an unsanitized web parameter in the Pulse Connect Secure administrator web console. The affected product is Pulse Connect Secure before the 9.1R12 fixed release. No CVSS vector or score is provided in the source bundle.
Likely exposure
Exposure is limited to organizations running Pulse Connect Secure versions before 9.1R12, especially where administrator access exists broadly or admin credentials may be compromised. The source bundle does not identify affected CPEs, deployment modes, or vulnerable parameter details.
Exploitation context
The source bundle does not report known active exploitation, and the CVE is not listed as KEV in the provided data. Exploitation requires authenticated administrator access, which lowers likelihood but raises concern if admin accounts are compromised.
Researcher notes
Useful validation centers on version confirmation and admin console exposure. The public source bundle does not include parameter names, proof-of-concept details, CVSS data, or exploit telemetry, so avoid assumptions beyond authenticated admin command injection before 9.1R12.
Mitigation direction
- Upgrade Pulse Connect Secure to the fixed 9.1R12 release per vendor advisory.
- Check current vendor guidance for supported later releases and any additional remediation notes.
- Restrict administrator console access to trusted administrative networks where operationally feasible.
- Review administrator accounts and remove unnecessary privileged access.
Validation and detection
- Inventory Pulse Connect Secure appliances and record running software versions.
- Confirm no appliance remains on a version before 9.1R12.
- Review administrative access paths and identify who can reach the console.
- Check administrative account activity for unusual or unexpected use.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-22938 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44858/?kA23Z000000L6oySACCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.