Path Traversal in Blynk Blynk-Server
CVE-2018-17785
In blynk-server in Blynk before 0.39.7, Directory Traversal exists via a ../ in a URI that has /static or /static/js at the beginning, as demonstrated by reading the /etc/passwd file.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.021 (81.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/blynkkk/blynk-server/issues/1256 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/blynkkk/blynk-server/releases/tag/v0.39.7 (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-17785?
- CVE-2018-17785 is a high-severity vulnerability in Blynk Blynk-Server, classified under Path Traversal. CVSS score: 7.5/10. Published 2018-09-30.
- How severe is CVE-2018-17785?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-17785 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.