Critical severity · published Jun 4, 2018
CVE-2018-11714
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
9.8
CVSS
67.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)67.1% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
Tl-wr840n Firmware · Tp-link
0.9.1_3.16 · source: NVD
TF
Tl-wr841n Firmware · Tp-link
0.9.1_4.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-11714
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-11714
Exploit
http://blog.securelayer7.net/time-to-disable-tp-link-home-wifi-router/
Exploit
https://www.exploit-db.com/exploits/44781/
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