Path Traversal in Siemens Simatic Easie Pcs 7 Skill
CVE-2021-42022
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 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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (59.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
- Siemens Simatic Easie Pcs 7 Skill — versions 21.00
- Siemens Simatic Easie Pcs 7 Skill Package — versions All versions < V21.00 SP3
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-199605.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-42022?
- CVE-2021-42022 is a medium-severity vulnerability in Siemens Simatic Easie Pcs 7 Skill, classified under Path Traversal. CVSS score: 6.5/10. Published 2021-12-14.
- How severe is CVE-2021-42022?
- Medium severity. CVSS v3 base score is 6.5 out of 10.