CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
Percentile
86.5%
The version of Core FTP installed on the remote host is prior to 2.2 build 1785. It is, therefore, affected by a stack-based buffer overflow vulnerability because user-supplied input is not properly validated when handling directory names via the ‘CWD’ command. A remote attacker could potentially exploit this issue with specially crafted directory names, resulting in a denial of service or code execution subject to the user’s privileges.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(70656);
script_version("1.3");
script_cvs_date("Date: 2018/07/06 11:26:08");
script_cve_id("CVE-2013-3930");
script_bugtraq_id(61786);
script_name(english:"Core FTP < 2.2 build 1785 CWD Command Buffer Overflow");
script_summary(english:"Checks version of Core FTP");
script_set_attribute(
attribute:"synopsis",
value:
"An FTP client on the remote host is affected by a stack-based buffer
overflow vulnerability."
);
script_set_attribute(
attribute:"description",
value:
"The version of Core FTP installed on the remote host is prior to 2.2
build 1785. It is, therefore, affected by a stack-based buffer overflow
vulnerability because user-supplied input is not properly validated when
handling directory names via the 'CWD' command. A remote attacker could
potentially exploit this issue with specially crafted directory names,
resulting in a denial of service or code execution subject to the user's
privileges."
);
script_set_attribute(attribute:"see_also", value:"http://coreftp.com/forums/viewtopic.php?t=222102");
script_set_attribute(attribute:"solution", value:"Upgrade to Core FTP 2.2 build 1785 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/08/15");
script_set_attribute(attribute:"patch_publication_date", value:"2013/08/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/28");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:coreftp:coreftp");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
script_dependencies("coreftp_stack_overflow.nasl");
script_require_keys("SMB/CoreFTP/Installed");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
appname = 'Core FTP';
kb_base = "SMB/CoreFTP/";
path = get_kb_item_or_exit(kb_base + "Path");
version = get_kb_item_or_exit(kb_base + "Version");
fix = "2.2.1785.0";
if (ver_compare(ver:version, fix:fix, strict:FALSE) == -1)
{
port = get_kb_item("SMB/transport");
if (!port) port = 445;
if (report_verbosity > 0)
{
report = '\n File : ' + path + "\coreftp.exe" +
'\n Installed version : ' + version +
'\n Fixed version : ' + fix + '\n';
security_hole(port:port, extra:report);
}
else security_hole(port);
exit(0);
}
else audit(AUDIT_INST_PATH_NOT_VULN, appname, version, path);