CVE-2021-28098 Privilege escalation in n/a
Local attackers can escalate privileges to administrative level by exploiting insecure log file permissions and symbolic links to perform DLL hijacking.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-28098?
CVE-2021-28098 is a high-severity vulnerability in n/a, published on 14 Apr 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2021-28098?
It affects 1 product.
Products include Forescout Counteract.
How do I fix CVE-2021-28098?
No fix has been published for CVE-2021-28098 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-28098 being exploited?
There is no known exploitation of CVE-2021-28098 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-66p4-7q93-93fg.