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CVE-2018-3955

Published: Oct 17, 2018Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-78
7.2HIGH
NVD MITRE
EPSS Score
4.8%
Top 8.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
OpenVAS

Description

An exploitable operating system command injection exists in the Linksys ESeries line of routers (Linksys E1200 Firmware Version 2.0.09 and Linksys E2500 Firmware Version 3.0.04). Specially crafted entries to network configuration information can cause execution of arbitrary system commands, resulting in full control of the device. An attacker can send an authenticated HTTP request to trigger this vulnerability. Data entered into the 'Domain Name' input field through the web portal is submitted to apply.cgi as the value to the 'wan_domain' POST parameter. The wan_domain data goes through the nvram_set process described above. When the 'preinit' binary receives the SIGHUP signal it enters a code path that calls a function named 'set_host_domain_name' from its libshared.so shared object.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
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

Linksys
commercial·USaka linksys by cisco
e1200 firmware
Networking Infrastructure
e2500 firmware
Networking Infrastructure
ESeries E1200
Networking Infrastructure
ESeries E2500
Networking Infrastructure
Cisco Systems Inc.
commercial·USaka cisco, cisco systems
Linksys E1200
Networking Infrastructure
Linksys E2500
Networking Infrastructure

Exploitability

1 exploit source identified

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

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Execution
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References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0625
talosintelligence.com
https://www.checkpoint.com/defense/advisories/public/2019/cpai-2018-1073.html
checkpoint.com

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