CVE-2021-42022
Published: 14 December 2021
Summary
CVE-2021-42022 is a medium-severity Path Traversal (CWE-22) vulnerability in Siemens Simatic Easie Pcs 7 Skill. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 36.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-29010
Vulnerability details
A vulnerability has been identified in SIMATIC eaSie PCS 7 Skill Package (All versions < V21.00 SP3). When downloading files, the affected systems do not properly neutralize special elements within the pathname. An attacker could then cause the pathname to…
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resolve to a location outside of the restricted directory on the server and read unexpected critical files. The affected file download function is disabled by default.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Validates pathnames and filenames to prevent traversal outside intended directories.