CVE-2021-28098
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Forescout/CounterACTdescription
- Range: <8.1.4
Patches
Vulnerability mechanics
References
3- jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/nvdExploitThird Party Advisory
- www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalationnvdExploitThird Party Advisory
- docs.forescout.comnvdVendor Advisory
News mentions
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