PT-2024-1318 · Totolink · Totolink N200Re

Jylsec

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Published

2024-01-29

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Updated

2024-05-17

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CVE-2024-1002

CVSS v2.0

9.3

High

VectorAV:N/AC:M/Au:N/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Totolink N200RE version 9.3.5u.6139 B20201216
Description A critical vulnerability was found in the Totolink N200RE, affecting the setIpPortFilterRules function of the /cgi-bin/cstecgi.cgi file. The manipulation of the ePort argument leads to a stack-based buffer overflow. The attack can be launched remotely. The issue is related to the handling of the sPort parameter, which can cause a buffer overflow in memory, potentially allowing a remote attacker to impact the confidentiality, integrity, and availability of protected information.
Recommendations For Totolink N200RE version 9.3.5u.6139 B20201216, as a temporary workaround, consider disabling the setIpPortFilterRules function until a patch is available. Restrict access to the /cgi-bin/cstecgi.cgi file to minimize the risk of exploitation. Avoid using the ePort and sPort parameters in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121CWE-119

Related Identifiers

BDU:2024-00769
CVE-2024-1002

Affected Products

Totolink N200Re