PT-2018-14196 · Blynk · Blynk

Published 2018-09-30 · Updated 2018-12-31 · CVE-2018-17785

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Blynk versions prior to 0.39.7

Description The issue allows for Directory Traversal via a ../ in a URI that starts with /static or /static/js, potentially allowing access to sensitive files, such as /etc/passwd.

Recommendations For versions prior to 0.39.7, update to version 0.39.7 or later to resolve the issue. As a temporary workaround, consider restricting access to the /static and /static/js directories to minimize the risk of exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2018-17785

GHSA-4R64-WF76-C53P

Affected Products

Blynk

References · 7

• 🔥❌ https://github.com/blynkkk/blynk-server/issues/1256 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2018-17785 · Security Note
• https://osv.dev/vulnerability/GHSA-4r64-wf76-c53p · Vendor Advisory
• ❌ https://github.com/blynkkk/blynk-server/releases/tag/v0.39.7 · Vendor Advisory, Deleted
• https://osv.dev/vulnerability/CVE-2018-17785 · Vendor Advisory
• ❌ https://github.com/blynkkk/blynk-server · Note, Deleted
• https://github.com/advisories/GHSA-4r64-wf76-c53p · Note