PT-2021-6938 · Advantech · Advantech R-Seenet

Yuri Kramarz · Published 2021-08-23 · Updated 2022-06-29 · CVE-2021-21910

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Advantech R-SeeNet version 2.4.15

Description A privilege escalation issue exists due to insufficient access restrictions to the C:R-SeeNet directory. This can be exploited by an attacker using a specially crafted malicious file to elevate privileges to NT SYSTEM authority.

Recommendations For Advantech R-SeeNet version 2.4.15, consider restricting access to the C:R-SeeNet directory to minimize the risk of exploitation until a patch is available. As a temporary workaround, avoid using the vulnerable directory for executing files from untrusted sources.

Exploit

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

BDU:2022-02702

CVE-2021-21910

Affected Products

Advantech R-Seenet

References · 7

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1360 · Exploit
• https://safe-surf.ru/upload/VULN/VULN-20211124.3.pdf · Security Note
• https://osv.dev/vulnerability/CVE-2021-21910 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21910 · Security Note
• https://bdu.fstec.ru/vul/2022-02702 · Security Note
• https://securitylab.ru/vulnerability/526790.php · Note
• https://cybersecurity-help.cz/vdb/SB2021112314 · Note