Multiple vulnerabilities in ASUS Routers

Published: 2023-01-17 | Updated: 2023-06-20

Risk	High
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2022-38105 CVE-2022-38393 CVE-2022-35401
CWE-ID	CWE-119 CWE-125 CWE-324
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	RT-AX82U Hardware solutions / Routers & switches, VoIP, GSM, etc GT6 Hardware solutions / Routers & switches, VoIP, GSM, etc GT-AXE16000 Hardware solutions / Routers & switches, VoIP, GSM, etc GT-AXE11000 PRO Hardware solutions / Routers & switches, VoIP, GSM, etc GT-AXE11000 Hardware solutions / Routers & switches, VoIP, GSM, etc GT-AX6000 Hardware solutions / Routers & switches, VoIP, GSM, etc GT-AX11000 Hardware solutions / Routers & switches, VoIP, GSM, etc GS-AX5400 Hardware solutions / Routers & switches, VoIP, GSM, etc GS-AX3000 Hardware solutions / Routers & switches, VoIP, GSM, etc ZenWiFi XT9 Hardware solutions / Routers & switches, VoIP, GSM, etc ZenWiFi XT8 Hardware solutions / Routers & switches, VoIP, GSM, etc ZenWiFi XT8_V2 Hardware solutions / Routers & switches, VoIP, GSM, etc RT-AX86U PRO Hardware solutions / Routers & switches, VoIP, GSM, etc RT-AX86U Hardware solutions / Routers & switches, VoIP, GSM, etc RT-AX86S Hardware solutions / Routers & switches, VoIP, GSM, etc RT-AX58U Hardware solutions / Routers & switches, VoIP, GSM, etc RT-AX3000 Hardware solutions / Routers & switches, VoIP, GSM, etc TUF-AX6000 Hardware solutions / Routers & switches, VoIP, GSM, etc TUF-AX5400 Hardware solutions / Routers & switches, VoIP, GSM, etc
Vendor	Asus

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

Updated 20.06.2023

Added vulnerable products.

1) Buffer overflow

EUVDB-ID: #VU71216

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38105

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary error in the cm_processREQ_NC opcode. A remote attacker can trigger memory corruption and gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

RT-AX82U: 3.0.0.4.386_49674-ge182230

GT6: before 3.0.0.4.388.23145

GT-AXE16000: before 3.0.0.4.388.23012

GT-AXE11000 PRO: before 3.0.0.4.388.23285

GT-AXE11000: before 3.0.0.4.388.23482

GT-AX6000: before 3.0.0.4.388.23285

GT-AX11000: before 3.0.0.4.388.23285

GS-AX5400: before 3.0.0.4.388.23012

GS-AX3000: before 1.4.8.3

ZenWiFi XT9: before 3.0.0.4.388.23285

ZenWiFi XT8: before 3.0.0.4.388.23285

ZenWiFi XT8_V2: before 3.0.0.4.388.23285

RT-AX86U PRO: before 3.0.0.4.388.23285

RT-AX86U: before 3.0.0.4.388.23285

RT-AX86S: before 3.0.0.4.388.23285

RT-AX58U: before 3.0.0.4.388.23403

RT-AX3000: before 3.0.0.4.388.23403

TUF-AX6000: before 3.0.0.4.388.31927

TUF-AX5400: before 3.0.0.4.388.23285

External links

http://talosintelligence.com/vulnerability_reports/TALOS-2022-1590
http://www.hkcert.org/security-bulletin/asus-router-multiple-vulnerabilities_20230620
http://www.asus.com/content/asus-product-security-advisory/#06/19/2023

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds read

EUVDB-ID: #VU71217

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38393

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition in the cfg_server cm_processConnDiagPktList opcode. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

RT-AX82U: 3.0.0.4.386_49674-ge182230

GT6: before 3.0.0.4.388.23145

GT-AXE16000: before 3.0.0.4.388.23012

GT-AXE11000 PRO: before 3.0.0.4.388.23285

GT-AXE11000: before 3.0.0.4.388.23482

GT-AX6000: before 3.0.0.4.388.23285

GT-AX11000: before 3.0.0.4.388.23285

GS-AX5400: before 3.0.0.4.388.23012

GS-AX3000: before 1.4.8.3

ZenWiFi XT9: before 3.0.0.4.388.23285

ZenWiFi XT8: before 3.0.0.4.388.23285

ZenWiFi XT8_V2: before 3.0.0.4.388.23285

RT-AX86U PRO: before 3.0.0.4.388.23285

RT-AX86U: before 3.0.0.4.388.23285

RT-AX86S: before 3.0.0.4.388.23285

RT-AX58U: before 3.0.0.4.388.23403

RT-AX3000: before 3.0.0.4.388.23403

TUF-AX6000: before 3.0.0.4.388.31927

TUF-AX5400: before 3.0.0.4.388.23285

External links

http://talosintelligence.com/vulnerability_reports/TALOS-2022-1592
http://www.hkcert.org/security-bulletin/asus-router-multiple-vulnerabilities_20230620
http://www.asus.com/content/asus-product-security-advisory/#06/19/2023

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Use of a Key Past its Expiration Date

EUVDB-ID: #VU71218

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-35401

CWE-ID: CWE-324 - Use of a Key Past its Expiration Date

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to authentication bypass issue in the get_IFTTTTtoken.cgi functionality. A remote attacker can send specially crafted HTTP requests and gain full administrative access to the device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

RT-AX82U: 3.0.0.4.386_49674-ge182230

GT6: before 3.0.0.4.388.23145

GT-AXE16000: before 3.0.0.4.388.23012

GT-AXE11000 PRO: before 3.0.0.4.388.23285

GT-AXE11000: before 3.0.0.4.388.23482

GT-AX6000: before 3.0.0.4.388.23285

GT-AX11000: before 3.0.0.4.388.23285

GS-AX5400: before 3.0.0.4.388.23012

GS-AX3000: before 1.4.8.3

ZenWiFi XT9: before 3.0.0.4.388.23285

ZenWiFi XT8: before 3.0.0.4.388.23285

ZenWiFi XT8_V2: before 3.0.0.4.388.23285

RT-AX86U PRO: before 3.0.0.4.388.23285

RT-AX86U: before 3.0.0.4.388.23285

RT-AX86S: before 3.0.0.4.388.23285

RT-AX58U: before 3.0.0.4.388.23403

RT-AX3000: before 3.0.0.4.388.23403

TUF-AX6000: before 3.0.0.4.388.31927

TUF-AX5400: before 3.0.0.4.388.23285

External links

http://talosintelligence.com/vulnerability_reports/TALOS-2022-1586
http://www.hkcert.org/security-bulletin/asus-router-multiple-vulnerabilities_20230620
http://www.asus.com/content/asus-product-security-advisory/#06/19/2023

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.