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CVE
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CVE-2018-19986Date: (C)2019-05-17   (M)2023-12-22


In the /HNAP1/SetRouterSettings message, the RemotePort parameter is vulnerable, and the vulnerability affects D-Link DIR-818LW Rev.A 2.05.B03 and DIR-822 B1 202KRb06 devices. In the SetRouterSettings.php source code, the RemotePort parameter is saved in the $path_inf_wan1."/web" internal configuration memory without any regex checking. And in the IPTWAN_build_command function of the iptwan.php source code, the data in $path_inf_wan1."/web" is used with the iptables command without any regex checking. A vulnerable /HNAP1/SetRouterSettings XML message could have shell metacharacters in the RemotePort element such as the `telnetd` string.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 9.8CVSS Score : 10.0
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 5.9Impact Score: 10.0
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: COMPLETE
Scope: UNCHANGEDIntegrity: COMPLETE
Confidentiality: HIGHAvailability: COMPLETE
Integrity: HIGH 
Availability: HIGH 
  
Reference:
https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990

CWE    1
CWE-78

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