cbcvebase.
CVE-2023-4415
published 2023-08-18

CVE-2023-4415: A vulnerability was found in Ruijie RG-EW1200G 07161417 r483. It has been rated as critical. Affected by this issue is some unknown functionality of the file…

PriorityP277high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EXPLOIT
EPSS
56.15%
98.9th percentile
A vulnerability was found in Ruijie RG-EW1200G 07161417 r483. It has been rated as critical. Affected by this issue is some unknown functionality of the file /api/sys/login. The manipulation leads to improper authentication. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-237518 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected

2 ranges
VendorProductVersion rangeFixed in
ruijierg-ew1200g——
ruijienetworksrg-ew1200g_firmware——

Detection & IOCsextracted from sources · hover to see the quote

path/api/sys/login↗
otherapp.2fe6356cdd1ddd0eb8d6317d1a48d379.css
commandPOST /api/sys/login {"username":"2","password":"admin","timestamp":1695218596000}
  • →POST request to /api/sys/login with username '2' and password 'admin' — anomalous/trivial credentials used to trigger authentication bypass
  • →Successful exploitation returns HTTP 200 with JSON body containing '"result":"ok"' and '"msg":"登入成功"' (login success in Chinese)
  • →Response Content-Type header is application/json on successful bypass
  • →Fingerprint vulnerable Ruijie RG-EW1200G devices via Shodan/FOFA using the CSS asset hash in the HTML body
  • ·Vulnerability is specific to Ruijie RG-EW1200G firmware version 07161417 r483; other firmware versions may not be affected ↗

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
vendor_oracle5.5MEDIUM
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