CVE Vulnerability

CVE-2021-38703

Wireless devices running certain Arcadyan-derived firmware (such as KPN Experia WiFi 1.00.15) do not properly sanitise user input to the syslog configuration form. An authenticated remote attacker could leverage this to alter the device configuration and achieve remote code execution. This can be exploited in conjunction with CVE-2021-20090.

9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://7bits.nl/journal/posts/cve-2021-38703-kpn-experia-wifi-root-shell/ Exploit Third Party Advisory
https://www.kpnwebshop.com/modems-routers/producten/experia-wifi/2 Vendor Advisory
Configurations

Configuration 1
Information

Published : 2021-09-01 12:15

Updated : 2021-09-13 02:11

NVD link : CVE-2021-38703

Mitre link : CVE-2021-38703

Products Affected
No products.
CWE
CWE-20