Vulnerability Details : CVE-2021-40397
A privilege escalation vulnerability exists in the installation of Advantech WISE-PaaS/OTA Server 3.0.9. 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.
Vulnerability category: Gain privilege
Products affected by CVE-2021-40397
- cpe:2.3:a:advantech:wise-paas\/ota:3.0.9:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-40397
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-40397
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
2.0
|
6.0
|
Talos | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-40397
-
During installation, installed file permissions are set to allow anyone to modify those files.Assigned by:
- nvd@nist.gov (Primary)
- talos-cna@cisco.com (Secondary)
References for CVE-2021-40397
-
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1409
TALOS-2021-1409 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
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