The specific function in ASUS BMC’s firmware Web management page (Delete video file function) does not filter the specific parameter. As obtaining the administrator permission, remote attackers can use the means of path traversal to access system files.
Published 2021-04-06 05:15:17
Updated 2021-04-14 14:09:18
Source TWCERT/CC
View at NVD,   CVE.org
Vulnerability category: Directory traversal

Exploit prediction scoring system (EPSS) score for CVE-2021-28209

0.21%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 58 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-28209

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
MEDIUM AV:N/AC:L/Au:S/C:C/I:N/A:N
8.0
6.9
NIST
4.9
MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
1.2
3.6
NIST
4.9
MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
1.2
3.6
TWCERT/CC

CWE ids for CVE-2021-28209

  • The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
    Assigned by:
    • nvd@nist.gov (Primary)
    • twcert@cert.org.tw (Secondary)

References for CVE-2021-28209

Products affected by CVE-2021-28209

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