| code | #
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(66416);
script_version("1.9");
script_cvs_date("Date: 2018/11/15 20:50:31");
script_cve_id("CVE-2013-1302");
script_bugtraq_id(59791);
script_xref(name:"MSFT", value:"MS13-041");
script_xref(name:"MSKB", value:"2827750");
script_xref(name:"MSKB", value:"2827751");
script_xref(name:"MSKB", value:"2827752");
script_xref(name:"MSKB", value:"2827753");
script_xref(name:"MSKB", value:"2827754");
script_xref(name:"IAVB", value:"2013-B-0051");
script_name(english:"MS13-041: Vulnerability in Lync Could Allow Remote Code Execution (2834695)");
script_summary(english:"Checks installed versions of Communicator and/or Lync.");
script_set_attribute(attribute:"synopsis", value:"The remote host is affected by a remote code execution vulnerability.");
script_set_attribute(attribute:"description", value:
"The version of Microsoft Communicator and/or Lync installed on the
remote host is potentially affected by a remote code execution if an
attacker shares specially crafted content, such as a file or program,
as a presentation in Lync or Communicator.");
script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2013/ms13-041");
script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Communicator 2007 R2, Lync
2010, Lync 2010 Attendee, and Lync Server 2013.");
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:"2013/05/14");
script_set_attribute(attribute:"patch_publication_date", value:"2013/05/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/05/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:lync");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:lync_server");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_communicator");
script_set_attribute(attribute:"stig_severity", value:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
script_require_keys("SMB/MS_Bulletin_Checks/Possible");
script_require_ports(139, 445, "Host/patch_management_checks");
exit(0);
}
include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");
include("misc_func.inc");
global_var bulletin, vuln;
# #########################
#
# Get list of all user Directories
#
# #########################
function get_user_dirs()
{
local_var appdir, dirpat, domain, hklm, iter, lcpath, login, pass;
local_var path, paths, pdir, port, rc, root, share, user, ver;
paths = make_list();
registry_init();
hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);
pdir = get_registry_value(handle:hklm, item:"SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\ProfilesDirectory");
if (pdir && stridx(tolower(pdir), "%systemdrive%") == 0)
{
root = get_registry_value(handle:hklm, item:"SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRoot");
if (!isnull(root))
{
share = hotfix_path2share(path:root);
pdir = share - '$' + ':' + substr(pdir, strlen("%systemdrive%"));
}
}
RegCloseKey(handle:hklm);
close_registry(close:FALSE);
if (!pdir)
return NULL;
ver = get_kb_item_or_exit("SMB/WindowsVersion");
share = hotfix_path2share(path:pdir);
dirpat = ereg_replace(string:pdir, pattern:"^[A-Za-z]:(.*)", replace:"\1\*");
port = kb_smb_transport();
if (!get_port_state(port)) audit(AUDIT_PORT_CLOSED, port);
login = kb_smb_login();
pass = kb_smb_password();
domain = kb_smb_domain();
rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc != 1)
{
NetUseDel(close:FALSE);
return NULL;
}
# 2000 / XP / 2003
if (ver < 6)
appdir += "\Local Settings\Application Data";
# Vista / 7 / 2008
else
appdir += "\AppData\Local";
paths = make_array();
iter = FindFirstFile(pattern:dirpat);
while (!isnull(iter[1]))
{
user = iter[1];
iter = FindNextFile(handle:iter);
if (user == "." || user == "..")
continue;
path = pdir + '\\' + user + appdir;
lcpath = tolower(path);
if (isnull(paths[lcpath]))
paths[lcpath] = path;
}
NetUseDel(close:FALSE);
return paths;
}
# #########################
#
# Get file version
#
# #########################
function get_ver()
{
local_var fh, path, rc, share, ver;
path = _FCT_ANON_ARGS[0];
share = hotfix_path2share(path:path);
rc = NetUseAdd(share:share);
if (rc != 1)
{
NetUseDel();
audit(AUDIT_SHARE_FAIL, share);
}
ver = NULL;
path = ereg_replace(string:path, pattern:"^[A-Za-z]:(.*)", replace:'\\1\\');
fh = CreateFile(
file : path,
desired_access : GENERIC_READ,
file_attributes : FILE_ATTRIBUTE_NORMAL,
share_mode : FILE_SHARE_READ,
create_disposition : OPEN_EXISTING
);
if (!isnull(fh))
{
ver = GetFileVersion(handle:fh);
ver = join(ver, sep:".");
CloseFile(handle:fh);
}
NetUseDel(close:FALSE);
return ver;
}
# #########################
#
# Check if a file path/version is vulnerable
#
# #########################
function check_vuln(fix, kb, name, path, ver, min_ver)
{
local_var info;
if (isnull(ver))
ver = get_ver(path);
if (isnull(ver) || ver_compare(ver:ver, fix:fix, strict:FALSE) >= 0)
return 0;
# If min_ver is supplied, make sure the version is higher than the min_ver
if (min_ver && ver_compare(ver:ver, fix:min_ver, strict:FALSE) == -1)
return 0;
info =
'\n Product : ' + name +
'\n Path : ' + path +
'\n Installed version : ' + ver +
'\n Fixed version : ' + fix + '\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
vuln = TRUE;}
# #########################
#
# Main
#
# #########################
get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');
bulletin = 'MS13-041';
kbs = make_list(
'2827750', '2827751',
'2827752', '2827753',
'2827754'
);
if (get_kb_item("Host/patch_management_checks"))
hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
get_kb_item_or_exit("SMB/Registry/Enumerated", exit_code:1);
# Connect to the registry
userpaths = get_user_dirs();
arch = get_kb_item_or_exit("SMB/ARCH", exit_code:1);
if (arch == "x64")
extra = "\Wow6432Node";
registry_init();
hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);
# Get the path information for Microsoft Communicator 2007 R2
mscomm2007r2_path = get_registry_value(
handle : hklm,
item : 'SOFTWARE\\Microsoft\\Communicator\\InstallationDirectory'
);
# Get the path information for Microsoft Lync 2010
lync2010_path = get_registry_value(
handle : hklm,
item : 'SOFTWARE'+extra+'\\Microsoft\\Communicator\\InstallationDirectory'
);
# Get the path information for Microsoft Lync 2010 Attendee (admin level install)
lync2010_att_admin_path = get_registry_value(
handle : hklm,
item : 'SOFTWARE\\Microsoft\\AttendeeCommunicator\\InstallationDirectory'
);
# Get the path information for Microsoft Lync Server 2013 (Web Components Server)
lync2013_web_path = get_registry_value(
handle : hklm,
item : 'Software\\Microsoft\\Real-Time Communications\\{2A65AB9C-57AD-4EC6-BD4E-BD61A7C583B3}\\InstallDir'
);
# Close connection to registry
RegCloseKey(handle:hklm);
close_registry(close:FALSE);
#############################################################
# Microsoft Communicator 2007 R2
#
# [KB2827753] COMMUNICATOR.EXE - 3.5.6907.268
#############################################################
if (mscomm2007r2_path)
{
name = "Microsoft Communicator 2007 R2";
check_vuln(
name : name,
kb : "2827753",
path : mscomm2007r2_path + "\Communicator.exe",
min_ver : "3.5.0.0",
fix : "3.5.6907.268"
);
}
#############################################################
# Microsoft Lync 2010
#
# [KB2827750] communicator.exe - 4.0.7577.4388
#############################################################
if (lync2010_path)
{
name = "Microsoft Lync 2010";
check_vuln(
name : name,
kb : "2827750",
path : lync2010_path + "\communicator.exe",
min_ver : "4.0.0.0",
fix : "4.0.7577.4388"
);
}
#############################################################
# Microsoft Lync 2010 Attendee (admin level install)
#
# [KB2827752] - MeetingJoinAxAOC.DLL - 4.0.7577.4388
#############################################################
if (lync2010_att_admin_path)
{
name = "Microsoft Lync 2010 Attendee (admin-level install)";
check_vuln(
name : name,
kb : "2827752",
path : lync2010_att_admin_path + "\MeetingJoinAxAOC.DLL",
min_ver : "4.0.0.0",
fix : "4.0.7577.4388"
);
}
#############################################################
# Microsoft Lync 2010 Attendee (user level install)
#
# [KB2827751] - MeetingJoinAxAOC.DLL - 4.0.7577.4388
#############################################################
if (max_index(keys(userpaths)) > 0)
{
foreach userdir (keys(userpaths))
{
name = "Microsoft Lync 2010 Attendee (user-level install)";
check_vuln(
name : name,
kb : "2827751",
path : userdir + "\Microsoft Lync Attendee\MeetingJoinAxAOC.DLL",
min_ver : "4.0.0.0",
fix : "4.0.7577.4388"
);
}
}
#############################################################
# Microsoft Lync Server 2013
#
# [KB2827754] system.net.http.formatting.dll - 4.0.21112.0
#############################################################
if (lync2013_web_path)
{
name = "Microsoft Lync Server 2013";
check_vuln(
name : name,
kb : "2827754",
path : lync2013_web_path + "\Web Components\Autodiscover\Ext\Bin\system.net.http.formatting.dll",
min_ver : "4.0.0.0",
fix : "4.0.21112.0"
);
}
hotfix_check_fversion_end();
if (!vuln)
audit(AUDIT_HOST_NOT, 'affected');
# Flag the system as vulnerable
set_kb_item(name:"SMB/Missing/" + bulletin, value:TRUE);
hotfix_security_hole();
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