CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
0.4%
A kernel driver from Deterministic Network Extender (DNE) is installed on the remote host. DNE is typically packaged with third-party applications and is reportedly included with :
The installed version of ‘dne2000.sys’ is affected by a local privilege escalation issue. By sending a specially crafted IOCTL request, it may be possible to execute arbitrary code with kernel privileges.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(33480);
script_version("1.15");
script_cvs_date("Date: 2018/11/15 20:50:26");
script_cve_id("CVE-2008-5121");
script_bugtraq_id(29772);
script_xref(name:"CERT", value:"858993");
script_name(english:"Deterministic Network Extender 'dne2000.sys' Local Privilege Escalation");
script_summary(english:"Checks for vulnerable version of dne2000.sys");
script_set_attribute(attribute:"synopsis", value:
"The remote host contains a kernel driver that is affected by a local
privilege escalation vulnerability.");
script_set_attribute(attribute:"description", value:
"A kernel driver from Deterministic Network Extender (DNE) is installed
on the remote host. DNE is typically packaged with third-party
applications and is reportedly included with :
- SafeNet HighAssurance Remote and SoftRemote
- Cisco VPN Client
- Blue Coat Systems WinProxy
The installed version of 'dne2000.sys' is affected by a local
privilege escalation issue. By sending a specially crafted IOCTL
request, it may be possible to execute arbitrary code with kernel
privileges.");
script_set_attribute(attribute:"see_also", value:"https://downloads.securityfocus.com/vulnerabilities/exploits/29772.c");
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4d23102b" );
script_set_attribute(attribute:"solution", value:"Upgrade to dne2000.sys version 3.21.12.17902");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(264);
script_set_attribute(attribute:"plugin_publication_date", value:"2008/07/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2008-2018 Tenable Network Security, Inc.");
script_dependencies("smb_hotfixes.nasl");
script_require_keys("SMB/Registry/Enumerated");
script_require_ports(139, 445);
exit(0);
}
include("smb_func.inc");
include("smb_hotfixes.inc");
include("audit.inc");
if (!get_kb_item("SMB/Registry/Enumerated")) exit(0);
name = kb_smb_name();
port = kb_smb_transport();
#if (!get_port_state(port)) exit(0);
login = kb_smb_login();
pass = kb_smb_password();
domain = kb_smb_domain();
#soc = open_sock_tcp(port);
#if (!soc) exit(0);
#session_init(socket:soc, hostname:name);
if(!smb_session_init()) audit(AUDIT_FN_FAIL, 'smb_session_init');
rc = NetUseAdd(login:login, password:pass, domain:domain, share:"IPC$");
if (rc != 1)
{
NetUseDel();
exit(0);
}
NetUseDel(close:FALSE);
# Get the share.
winroot = hotfix_get_systemroot();
if (!winroot) exit(1);
share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:winroot);
sys = ereg_replace(pattern:"^[A-Za-z]:(.*)", replace:"\1\System32\drivers\dne2000.sys", string:winroot);
rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc != 1)
{
NetUseDel();
exit(0);
}
fh = CreateFile(
file:sys,
desired_access:GENERIC_READ,
file_attributes:FILE_ATTRIBUTE_NORMAL,
share_mode:FILE_SHARE_READ,
create_disposition:OPEN_EXISTING
);
ver = NULL;
# Grab the file version of the affected file.
if (!isnull(fh))
{
ver = GetFileVersion(handle:fh);
CloseFile(handle:fh);
}
NetUseDel();
# Check the version number.
if (!isnull(ver))
{
# According to US-CERT v3.21.12.17902 is the fixed version
fix = split("3.21.12.17902", sep:'.', keep:FALSE);
for (i=0; i<max_index(fix); i++)
fix[i] = int(fix[i]);
for (i=0; i<max_index(ver); i++)
if ((ver[i] < fix[i]))
{
if (report_verbosity)
{
version = string(ver[0], ".", ver[1], ".", ver[2], ".", ver[3]);
report = string(
"\n",
"Version ", version, " of the affected kernel driver is installed as :\n",
"\n",
" ", winroot, "\\System32\\drivers\\dne2000.sys\n"
);
security_hole(port:port, extra:report);
}
else security_hole(port);
break;
}
else if (ver[i] > fix[i])
break;
}