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TI-2021-09342 Aliases CVE-2021-28098GHSA-66p4-7q93-93fg

An issue was discovered in Forescout CounterACT before 8.1.4.

Priority LOW 34CWE-427Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-427.

Summary

An issue was discovered in Forescout CounterACT before 8.1.4. A local privilege escalation vulnerability is present in the logging function. SecureConnector runs with administrative privileges and writes logs entries to a file in %PROGRAMDATA%\ForeScout SecureConnector\ that has full permissions for the Everyone group. Using a symbolic link allows an attacker to point the log file to a privileged location such as %WINDIR%\System32. The resulting log file adopts the file permissions of the source of the symbolic link (in this case, the Everyone group). The log file in System32 can be replaced and renamed with a malicious DLL for DLL hijacking.

Why it matters now

EPSS 0.00424 36th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:forescout:counteract:*:*:*:*:*:*:*:*before 8.1.4VulnerableForescout
  • cpe:2.3:a:forescout:counteract:*:*:*:*:*:*:*:* Versions before 8.1.4 Vulnerable ·Forescout

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-28098
  2. 2026-10-03 Alias added: GHSA-66p4-7q93-93fg

References

Exploit 2

Advisory 1

  • TI-2012-04210 Open redirect vulnerability in assets/login on the Forescout CounterACT NAC device before… CVSS 2.0MEDIUM 5.8
  • TI-2012-04212 The Forescout CounterACT NAC device 6.3.4.1 does not block ARP and ICMP traffic from… CVSS 2.0MEDIUM 4.3
  • TI-2012-04211 Multiple cross-site scripting (XSS) vulnerabilities on the Forescout CounterACT NAC… CVSS 2.0MEDIUM 4.3
  • TI-2012-01609 Multiple cross-site scripting (XSS) vulnerabilities in the status program on the… CVSS 2.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences