CVE-2018-7495: advantech webaccess External Control of File Name or Path
Vulnerability summary
CVE-2018-7495 is a high (CVSS 7.5) External Control of File Name or Path vulnerability in advantech webaccess. EPSS estimates a 2.16% chance of exploitation in the next 30 days, higher than 82% of scored vulnerabilities.
Timeline
- 15-05-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, an external control of file name or path vulnerability has been identified, which may allow an attacker to delete files.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
2.16%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
+0.15 pp
From 2.00% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-73External Control of File Name or PathThe product allows user input to control or influence paths or file names that are used in filesystem operations.
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')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.
Affected systems
Advantech4 products
- webaccessWebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, WebAccess/NMS 2.0.3 and prior. | ≤ 8.2_20170817 | ≤ 8.3.0
- webaccess_dashboard≤ 2.0.15
- webaccess_scada< 8.3.1
- webaccess\/nms≤ 2.0.3
1 vendor · 4 products
References
2 links- ics-cert.us-cert.gov/advisories/ICSA-18-135-01X Refsource MISCThird Party AdvisoryUS Government Resource