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Vulnerability Details :

CVE-2012-10055

Summary
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At-13 Aug, 2025 | 20:33
Updated At-14 Aug, 2025 | 13:49
Rejected At-
Credits

ComSndFTP v1.3.7 Beta USER Format String RCE

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulnCheck
Assigner Org ID:83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At:13 Aug, 2025 | 20:33
Updated At:14 Aug, 2025 | 13:49
Rejected At:
▼CVE Numbering Authority (CNA)
ComSndFTP v1.3.7 Beta USER Format String RCE

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.

Affected Products
Vendor
ComSndFTP
Product
FTP Server
Modules
  • Format string parsing in FTP login handler
Default Status
unknown
Versions
Affected
  • 1.3.7 Beta
Problem Types
TypeCWE IDDescription
CWECWE-134CWE-134 Use of Externally-Controlled Format String
Type: CWE
CWE ID: CWE-134
Description: CWE-134 Use of Externally-Controlled Format String
Metrics
VersionBase scoreBase severityVector
4.09.3CRITICAL
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
Version: 4.0
Base score: 9.3
Base severity: CRITICAL
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
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-135CAPEC-135 Format String Injection
CAPEC ID: CAPEC-135
Description: CAPEC-135 Format String Injection
Solutions
Configurations
Workarounds
Exploits
Credits
finder
ChaoYi Huang
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb
exploit
https://www.exploit-db.com/exploits/19024
exploit
https://www.exploit-db.com/exploits/19177
exploit
https://web.archive.org/web/20120317214524/http://ftp.comsnd.com/
product
https://www.vulncheck.com/advisories/comsndftp-user-format-string-rce
third-party-advisory
Hyperlink: https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb
Resource:
exploit
Hyperlink: https://www.exploit-db.com/exploits/19024
Resource:
exploit
Hyperlink: https://www.exploit-db.com/exploits/19177
Resource:
exploit
Hyperlink: https://web.archive.org/web/20120317214524/http://ftp.comsnd.com/
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/comsndftp-user-format-string-rce
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb
exploit
https://www.exploit-db.com/exploits/19024
exploit
https://www.exploit-db.com/exploits/19177
exploit
Hyperlink: https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb
Resource:
exploit
Hyperlink: https://www.exploit-db.com/exploits/19024
Resource:
exploit
Hyperlink: https://www.exploit-db.com/exploits/19177
Resource:
exploit
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:disclosure@vulncheck.com
Published At:13 Aug, 2025 | 21:15
Updated At:14 Aug, 2025 | 14:15

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.09.3CRITICAL
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 4.0
Base score: 9.3
Base severity: CRITICAL
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-134Secondarydisclosure@vulncheck.com
CWE ID: CWE-134
Type: Secondary
Source: disclosure@vulncheck.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rbdisclosure@vulncheck.com
N/A
https://web.archive.org/web/20120317214524/http://ftp.comsnd.com/disclosure@vulncheck.com
N/A
https://www.exploit-db.com/exploits/19024disclosure@vulncheck.com
N/A
https://www.exploit-db.com/exploits/19177disclosure@vulncheck.com
N/A
https://www.vulncheck.com/advisories/comsndftp-user-format-string-rcedisclosure@vulncheck.com
N/A
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
https://www.exploit-db.com/exploits/19024134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
https://www.exploit-db.com/exploits/19177134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
Hyperlink: https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://web.archive.org/web/20120317214524/http://ftp.comsnd.com/
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.exploit-db.com/exploits/19024
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.exploit-db.com/exploits/19177
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.vulncheck.com/advisories/comsndftp-user-format-string-rce
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A
Hyperlink: https://www.exploit-db.com/exploits/19024
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A
Hyperlink: https://www.exploit-db.com/exploits/19177
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A

Change History

0
Information is not available yet

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