ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanup from Ws2_32.dll). This allows the attacker to redirect execution flow and bypass DEP protections using a ROP chain, ultimately leading to arbitrary code execution. The vulnerability is exploitable without authentication and affects default configurations.
History

Thu, 14 Aug 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 13 Aug 2025 20:45:00 +0000

Type Values Removed Values Added
Description ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanup from Ws2_32.dll). This allows the attacker to redirect execution flow and bypass DEP protections using a ROP chain, ultimately leading to arbitrary code execution. The vulnerability is exploitable without authentication and affects default configurations.
Title ComSndFTP v1.3.7 Beta USER Format String RCE
Weaknesses CWE-134
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2025-08-13T20:33:06.598Z

Updated: 2025-08-14T13:49:59.657Z

Reserved: 2025-08-11T18:15:05.776Z

Link: CVE-2012-10055

cve-icon Vulnrichment

Updated: 2025-08-14T13:49:50.067Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-13T21:15:29.840

Modified: 2025-08-14T14:15:29.643

Link: CVE-2012-10055

cve-icon Redhat

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