Format string error in Asus products - CVE-2023-39238
Published: September 6, 2023
Vulnerability identifier: #VU80482
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-39238
CWE-ID: CWE-134
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a format string error in the iperf-related modules set_iperf3_svr.cgi API. A remote attacker can supply a specially crafted input that contains format string specifiers and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
RT-AX55
RT-AX56U_V2
RT-AC86U
RT-AX56U_V2
RT-AC86U
How to mitigate CVE-2023-39238
Install updates from vendor's website.
RT-AX55 - update to 3.0.0.4.386_51948
RT-AX56U_V2 - update to 3.0.0.4.386_51948
RT-AC86U - update to 3.0.0.4.386_51915
RT-AX56U_V2 - update to 3.0.0.4.386_51948
RT-AC86U - update to 3.0.0.4.386_51915