CVE-2024-5242: tp-link omada_er605_firmware Stack-based Buffer Overflow

Vulnerability summary

CVE-2024-5242 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in tp-link omada_er605_firmware. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 56.2% of scored vulnerabilities.

Timeline

1. 23-05-2024
   PublishedVulnerability first disclosed.
2. 01-08-2024
   Last modifiedVulnerability information updated.

Description

TP-Link Omada ER605 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Omada ER605 routers. Authentication is not required to exploit this vulnerability. However, devices are vulnerable only if configured to use the Comexe DDNS service. The specific flaw exists within the handling of DDNS error codes. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-22522.

• CWE-121Stack-based Buffer OverflowA 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).