Stack-based buffer overflow in Asus products - CVE-2023-28703

Vulnerability identifier: #VU77537

CSH Severity: Low

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-28703

CWE-ID: CWE-121

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the cgi function. A remote administrator can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

GS-AX3000
GT-AXE16000
GS-AX5400
GT6
TUF-AX5400
RT-AX82U
RT-AX86S
RT-AX86U
RT-AX86U PRO
ZenWiFi XT8_V2
ZenWiFi XT8
ZenWiFi XT9
GT-AX11000
GT-AX6000
GT-AXE11000 PRO
RT-AX58U
RT-AX3000
GT-AXE11000
TUF-AX6000

Install updates from vendor's website.

GS-AX3000 - update to 1.4.8.3
GT-AXE16000 - update to 3.0.0.4.388.23012
GS-AX5400 - update to 3.0.0.4.388.23012
GT6 - update to 3.0.0.4.388.23145
TUF-AX5400 - update to 3.0.0.4.388.23285
RT-AX82U - update to 3.0.0.4.388.23285
RT-AX86S - update to 3.0.0.4.388.23285
RT-AX86U - update to 3.0.0.4.388.23285
RT-AX86U PRO - update to 3.0.0.4.388.23285
ZenWiFi XT8_V2 - update to 3.0.0.4.388.23285
ZenWiFi XT8 - update to 3.0.0.4.388.23285
ZenWiFi XT9 - update to 3.0.0.4.388.23285
GT-AX11000 - update to 3.0.0.4.388.23285
GT-AX6000 - update to 3.0.0.4.388.23285
GT-AXE11000 PRO - update to 3.0.0.4.388.23285
RT-AX58U - update to 3.0.0.4.388.23403
RT-AX3000 - update to 3.0.0.4.388.23403
GT-AXE11000 - update to 3.0.0.4.388.23482
TUF-AX6000 - update to 3.0.0.4.388.31927

• https://www.twcert.org.tw/tw/cp-132-7147-afcf9-1.html
• https://www.asus.com/content/asus-product-security-advisory/#06/19/2023
• https://www.hkcert.org/security-bulletin/asus-router-multiple-vulnerabilities_20230620

• Multiple vulnerabilities in ASUS Routers