CVE-2021-21912 — HIGH (7.8)

Vulnerability Description

A privilege escalation vulnerability exists in the Windows version of installation for Advantech R-SeeNet Advantech R-SeeNet 2.4.15 (30.07.2021). A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Advantech	R-Seenet	2.4.15
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-276

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1360ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1360ExploitThird Party Advisory

FAQ

What is CVE-2021-21912?

CVE-2021-21912 is a vulnerability with a CVSS score of 7.8 (HIGH). A privilege escalation vulnerability exists in the Windows version of installation for Advantech R-SeeNet Advantech R-SeeNet 2.4.15 (30.07.2021). A specially-crafted file can be replaced in the system...

How severe is CVE-2021-21912?

CVE-2021-21912 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-21912?

Check the references section above for vendor advisories and patch information. Affected products include: Advantech R-Seenet, Microsoft Windows.