CVE-2023-35086: ASUS RT-AX56U V2 & RT-AC86U - Format String -1
It is identified a format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessagenormal function, in the dodetwancgi module of httpd. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.
This issue affects RT-AX56U V2: 3.0.0.4.38650460; RT-AC86U: 3.0.0.438651529.
Other sources
It is identified a format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessagenormal function, in the dodetwancgi module of httpd. An unauthenticated remote attacker without privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.
This issue affects RT-AX56U V2: 3.0.0.4.38650460; RT-AC86U: 3.0.0.438651529.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ASUS RT-AX56U V2to a version that resolves this vulnerability.Fixed in 3.0.0.4.386_51915 - Upgrade
Upgrade
ASUS RT-AC86Uto a version that resolves this vulnerability.Fixed in 3.0.0.4.386_51915
Event History
Frequently Asked Questions
What is the vulnerability ID for this format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U?
The vulnerability ID for this format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U is CVE-2023-35086.
What is the severity of CVE-2023-35086?
The severity of CVE-2023-35086 is critical with a severity value of 9.
Which software versions are affected by CVE-2023-35086?
The firmware versions 3.0.0.4_386_51529 for ASUS RT-AC86U and 3.0.0.4.386_50460 for ASUS RT-AX56U V2 are affected by CVE-2023-35086.
How does CVE-2023-35086 vulnerability occur?
CVE-2023-35086 vulnerability occurs due to the direct use of user input as a format string in the logmessage_normal function of the do_detwan_cgi module.
How can an attacker exploit CVE-2023-35086?
An unauthenticated remote attacker without privilege can exploit CVE-2023-35086 by exploiting the format string vulnerability to execute arbitrary code.