cbcvebase.
CVE-2021-3223
published 2021-01-26

CVE-2021-3223: Node-RED-Dashboard before 2.26.2 allows ui_base/js/..%2f directory traversal to read files.

PriorityP180high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
ITWEXPLOITVulnCheck KEV
Exploited in the wild
EPSS
18.37%
96.9th percentile
Node-RED-Dashboard before 2.26.2 allows ui_base/js/..%2f directory traversal to read files.

Affected

2 ranges
VendorProductVersion rangeFixed in
noderednode-red-dashboard< 2.26.22.26.2
noderednode-red-dashboard>= 0 < 2.26.22.26.2

Detection & IOCsextracted from sources · hover to see the quote

url/ui_base/js/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc%2fpasswd
url/ui_base/js/..%2f..%2f..%2f..%2fsettings.js
pathui_base/js/..%2f
  • Response body containing 'Node-RED web server is listening' indicates successful traversal to settings.js
  • Response body matching regex 'root:.*:0:0:' indicates successful traversal to /etc/passwd
  • Shodan/FOFA/Google dork to identify exposed Node-RED instances as targets: search for title 'Node-RED'
  • ·Vulnerability only affects Node-RED-Dashboard versions before 2.26.2; patched in 2.26.2 and later

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
vulncheck7.5HIGH
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