Summaryinfo

A vulnerability classified as critical was found in Core FTP Lite 1.3. The affected element is an unknown function. Such manipulation of the argument Username leads to buffer overflow. This vulnerability is traded as CVE-2020-37155. An attack has to be approached locally. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in Core FTP Lite 1.3. It has been rated as critical. Affected by this issue is an unknown function. The manipulation of the argument username with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Core FTP Lite 1.3 contains a buffer overflow vulnerability in the username input field that allows attackers to crash the application by supplying oversized input. Attackers can generate a 7000-byte payload of repeated 'A' characters to trigger an application crash without requiring additional interaction.

The weakness was shared by Berat Isler as 48100. The advisory is available at exploit-db.com. This vulnerability is handled as CVE-2020-37155 since 02/03/2026. The exploitation is known to be easy. Local access is required to approach this attack. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

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

The vulnerability is also documented in the vulnerability database at Exploit-DB (48100). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Core FTP Lite

Version

• 1.3

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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