CVE-2023-39238: ASUS RT-AX55、RT-AX56U_V2 - Format String - 1

Published Sep 7, 2023
·
Updated

It is identified a format string vulnerability in ASUS RT-AX56U V2. This vulnerability is caused by lacking validation for a specific value within its setiperf3svr.cgi module. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.

Other sources

It is identified a format string vulnerability in ASUS RT-AX56U V2. This vulnerability is caused by lacking validation for a specific value within its setiperf3svr.cgi module. An unauthenticated remote attacker can exploit this vulnerability without privilege to perform remote arbitrary code execution, arbitrary system operation or disrupt service.

Affected Software

12 affected components
ASUS Rt-ax55 Firmware=3.0.0.4.386_50460
ASUS RT-AX55
ASUS Rt-ax56u V2 Firmware=3.0.0.4.386_50460
ASUS RT-AX56U V2
ASUS Rt-ac86u Firmware=3.0.0.4_386_51529
ASUS RT-AC86U
All of the following
ASUS Rt-ax55 Firmware=3.0.0.4.386_50460
ASUS RT-AX55
All of the following
ASUS Rt-ax56u V2 Firmware=3.0.0.4.386_50460
ASUS RT-AX56U V2
All of the following
ASUS Rt-ac86u Firmware=3.0.0.4_386_51529
ASUS RT-AC86U

Remediation

Information

RT-AX55: update to 3.0.0.4.386_51948  RT-AX56U_V2: update to 3.0.0.4.386_51948 

Event History

Sep 7, 2023
CVE Published
via MITRE·07:10 AM
Data Sourced
via MITRE·07:10 AM
RemedyDescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the vulnerability ID for this ASUS RT-AX56U V2 vulnerability?

The vulnerability ID for this ASUS RT-AX56U V2 vulnerability is CVE-2023-39238.

2

What is the severity of CVE-2023-39238?

The severity of CVE-2023-39238 is critical (CVSS score of 9.8).

3

How does the format string vulnerability in ASUS RT-AX56U V2 occur?

The format string vulnerability in ASUS RT-AX56U V2 occurs due to lacking validation for a specific value within its set_iperf3_svr.cgi module.

4

Who can exploit CVE-2023-39238?

CVE-2023-39238 can be exploited by an unauthenticated remote attacker without privilege.

5

Is there a fix available for this vulnerability?

The fix for this vulnerability may be provided by ASUS in a firmware update.

Contact

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