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CVE-2018-19986

Published: May 13, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-78
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
41.6%
Top 1.5%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available

Description

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

dir-818lw firmwared-linkNetworking Infrastructure
dir-822 firmwared-linkNetworking Infrastructure
n/an/a
DIR-818LWD-Link Corp.Networking Infrastructure
DIR-822D-Link Corp.Networking Infrastructure
d-linkcommercialTWNetworking Infrastructure
d-link corp.commercialTWNetworking Infrastructureaka d-link corporation, d-link international

Attack Graph

Products CVE Techniques Tactics

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Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Execution
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References

https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990
github.com
https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-1998620-2019990
github.com
https://nvd.nist.gov/vuln/detail/CVE-2018-19986
nvd.nist.gov
and 1 more references View all →

Timeline

Published
May 13, 2019
Last Updated
Nov 21, 2024

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