Summaryinfo

A vulnerability was found in Vilo Mesh WiFi System up to 5.16.1.33. It has been rated as critical. This issue affects the function local_app_set_router_wan. The manipulation of the argument pppoe_username/pppoe_password leads to buffer overflow. The identification of this vulnerability is CVE-2024-40085. The attack may be initiated remotely. There is no exploit available. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability was found in Vilo Mesh WiFi System up to 5.16.1.33. It has been declared as critical. This vulnerability affects the function local_app_set_router_wan. The manipulation of the argument pppoe_username/pppoe_password with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A Buffer Overflow vulnerability in the local_app_set_router_wan function of Vilo 5 Mesh WiFi System <= 5.16.1.33 allows remote, unauthenticated attackers to execute arbitrary code via pppoe_username and pppoe_password fields being larger than 128 bytes in length.

This vulnerability was named CVE-2024-40085 since 07/05/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/22/2024).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Wireless LAN Software

Vendor

• Vilo

Name

• Mesh WiFi System

Version

• 5.16.1.0
• 5.16.1.1
• 5.16.1.2
• 5.16.1.3
• 5.16.1.4
• 5.16.1.5
• 5.16.1.6
• 5.16.1.7
• 5.16.1.8
• 5.16.1.9
• 5.16.1.10
• 5.16.1.11
• 5.16.1.12
• 5.16.1.13
• 5.16.1.14
• 5.16.1.15
• 5.16.1.16
• 5.16.1.17
• 5.16.1.18
• 5.16.1.19
• 5.16.1.20
• 5.16.1.21
• 5.16.1.22
• 5.16.1.23
• 5.16.1.24
• 5.16.1.25
• 5.16.1.26
• 5.16.1.27
• 5.16.1.28
• 5.16.1.29
• 5.16.1.30
• 5.16.1.31
• 5.16.1.32
• 5.16.1.33

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