LevelOne WBR-6013 RER4_A_v3411b_2T2R_LEV_09_170623 Realtek rtl819x Jungle SDK set_RadvdPrefixParam stack-based overflow

Summaryinfo

A vulnerability identified as critical has been detected in LevelOne WBR-6013 RER4_A_v3411b_2T2R_LEV_09_170623. The impacted element is the function set_RadvdPrefixParam of the component Realtek rtl819x Jungle SDK. This manipulation causes stack-based overflow. This vulnerability is registered as CVE-2023-47856. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in LevelOne WBR-6013 RER4_A_v3411b_2T2R_LEV_09_170623. It has been declared as critical. Affected by this vulnerability is the function set_RadvdPrefixParam of the component Realtek rtl819x Jungle SDK. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A stack-based buffer overflow vulnerability exists in the boa set_RadvdPrefixParam functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.

It is possible to read the advisory at talosintelligence.com. This vulnerability is known as CVE-2023-47856 since 12/05/2023. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/09/2024).

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

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Productinfo

Vendor

• LevelOne

Name

• WBR-6013

Version

• RER4_A_v3411b_2T2R_LEV_09_170623

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