An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608 Rel.58696n and TL-WR841N v13 00000013 0.9.1 4.16 v0001.0 Build 170622 Rel.64334n devices. This issue is caused by improper session handling on the /cgi/ folder or a /cgi file. If an attacker sends a header of "Referer: http://192.168.0.1/mainFrame.htm" then no authentication is required for any action.
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HTp Link Tl Wr840n
HWTp-Link5.0Tp Link Tl Wr840n Firmware
OSTp-Link0.9.1_3.16Tp Link Tl Wr841n
HWTp-Link13.0Tp Link Tl Wr841n Firmware
OSTp-Link0.9.1_4.16
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CHECK WITH VENDOR
No clear patch data available. Check vendor references.
CWE
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