7.8
HIGH
CVE-2021-28098
Forescout CounterACT DLL Hijacking Vulnerability
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.

INFO

Published Date :

April 14, 2021, 3:15 p.m.

Last Modified :

June 28, 2022, 2:11 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-28098 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Forescout counteract
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-28098.

URL Resource
https://docs.forescout.com Vendor Advisory
https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/ Exploit Third Party Advisory
https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalation Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-28098 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-28098 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jun. 28, 2022

    Action Type Old Value New Value
    Changed CWE CWE-276 CWE-427 CWE-59 CWE-732
  • Initial Analysis by [email protected]

    Apr. 21, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://docs.forescout.com No Types Assigned https://docs.forescout.com Vendor Advisory
    Changed Reference Type https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/ No Types Assigned https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/ Exploit, Third Party Advisory
    Changed Reference Type https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalation No Types Assigned https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalation Exploit, Third Party Advisory
    Added CWE NIST CWE-276
    Added CPE Configuration OR *cpe:2.3:a:forescout:counteract:*:*:*:*:*:*:*:* versions up to (excluding) 8.1.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-28098 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.08 }} 0.01%

score

0.35095

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability