HTTP: TP-Link Multiple Routers CVE-2018-11714 Network Authentication Bypass
This signature detects attempts to exploit a known vulnerability against TP-Link routers TL-WR840N and TL-WR841N. Versions TL-WR840N 0.9.1 3.16 v0001.0 Build 170608 and TL-WR841N 0.9.1 4.16 v0001.0 Build 170622 are vulnerable. Attackers can exploit this vulnerability to bypass access restrictions and perform unauthorized actions on a router.
Extended Description
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.
Short Name
HTTP:MISC:TP-LINK-AUTH-BYPASS
Severity
Major
Recommended
False
Recommended Action
Drop
Category
HTTP
Keywords
Authentication Bypass CVE-2018-11714 Multiple Network Routers TP-Link
Release Date
01/31/2019
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3415
False Positive
Unknown
CVSS Score
10.0