Sunnet eHRD has inadequate filtering for special characters in URLs, which allows a remote attacker to perform path traversal attacks without authentication, access restricted paths and download system files.
Published 2021-12-01 02:15:07
Updated 2021-12-02 02:19:57
Source TWCERT/CC
View at NVD,   CVE.org
Vulnerability category: Directory traversal

Products affected by CVE-2021-43358

Exploit prediction scoring system (EPSS) score for CVE-2021-43358

0.48%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 76 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-43358

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
HIGH AV:N/AC:L/Au:N/C:C/I:N/A:N
10.0
6.9
NIST
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.9
3.6
NIST
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.9
3.6
TWCERT/CC

CWE ids for CVE-2021-43358

  • 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: twcert@cert.org.tw (Primary)

References for CVE-2021-43358

  • https://www.twcert.org.tw/tw/cp-132-5353-4ebee-1.html
    TWCERT/CC台灣電腦網路危機處理暨協調中心|企業資安通報協處|資安情資分享|漏洞通報|資安聯盟|資安電子報-Sunnet eHRD教育訓練管理系統 - Path Traversal
    Third Party Advisory
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