| code | #
# (C) Tenable Network Security, Inc.
#
include('compat.inc');
if (description)
{
script_id(51191);
script_version("1.13");
script_cvs_date("Date: 2018/11/15 20:50:26");
script_cve_id("CVE-2010-2602");
script_bugtraq_id(45392);
script_xref(name:"Secunia", value:"35632");
script_name(english:"BlackBerry Enterprise Server / Attachment Service PDF Distiller Buffer Overflow (KB24761)");
script_summary(english:"Checks version and looks for workaround");
script_set_attribute(attribute:"synopsis", value:
"The remote Windows host has an application that is affected by a
buffer overflow vulnerability.");
script_set_attribute(attribute:"description", value:
"The version of BlackBerry Enterprise Server on the remote host is
reportedly affected by a buffer overflow vulnerability in the PDF
distiller component of the BlackBerry Attachment Service. By sending a
specially crafted PDF file and having it opened on a BlackBerry
smartphone, an attacker may be able to execute arbitrary code on the
system that runs the BlackBerry Attachment Service.");
script_set_attribute(attribute:"see_also", value:"https://salesforce.services.blackberry.com/kbredirect/viewContent.do?externalId=KB24761");
script_set_attribute(attribute:"solution", value:"Apply the vendor-supplied patches.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/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:"2010/12/14");
script_set_attribute(attribute:"patch_publication_date", value:"2010/12/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2010/12/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:rim:blackberry_enterprise_server");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");
script_dependencies("blackberry_es_installed.nasl", "smb_hotfixes.nasl");
script_require_keys("BlackBerry_ES/Product", "BlackBerry_ES/Path", "BlackBerry_ES/Version", "BlackBerry_ES/AttachmentServer", "SMB/Registry/Enumerated");
script_require_ports(139, 445);
exit(0);
}
include("global_settings.inc");
include("misc_func.inc");
include("smb_func.inc");
include("audit.inc");
prod = get_kb_item_or_exit("BlackBerry_ES/Product");
version = get_kb_item_or_exit("BlackBerry_ES/Version");
path = get_kb_item_or_exit("BlackBerry_ES/Path");
if (isnull(get_kb_item("BlackBerry_ES/AttachmentServer"))) exit(0, "The host is not affected because BlackBerry Attachment Server isn't installed.");
# Exit unless it looks like a vulnerable version
if (
("Enterprise Server" >< prod && version !~ '^(4\\.1\\.[3-7]|5\\.0)') ||
("Professional Software" >< prod && version !~ '^([0-3]\\..*|4\\.(0\\.|1\\.[0-3][^0-9]))')
) exit (0, prod+" "+version+" is installed and not affected.");
BES4 = 0;
BES4Pro = 0;
BES5 = 0;
fix = NULL;
if ("Enterprise Server" >< prod && version =~ '4\\.1')
{
BES4 = 1;
if (version =~ '^4\\.1\\.[0-5]\\.') fix = 'n/a';
else if (version =~ '^4\\.1\\.6\\.') fix = '4.1.6.20';
else if (version =~ '^4\\.1\\.7\\.') fix = '4.1.7.12';
}
else if ("Enterprise Server" >< prod && version =~ '5\\.0')
{
BES5 = 1;
if (version =~ '^5\\.0\\.0\\.') fix = '5.0.0.60';
else if (version =~ '^5\\.0\\.1\\.') fix = '5.0.1.38';
else if (version =~ '^5\\.0\\.2\\.') fix = '5.0.2.20';
}
else if ("Professional Server" >< prod)
{
BES4Pro = 1;
fix = 'n/a';
}
get_kb_item_or_exit("SMB/Registry/Enumerated");
# Connect to the appropriate share.
port = kb_smb_transport();
login = kb_smb_login();
pass = kb_smb_password();
domain = kb_smb_domain();
if(! smb_session_init()) audit(AUDIT_FN_FAIL, 'smb_session_init');
rc = NetUseAdd(login:login, password:pass, domain:domain, share:"IPC$");
if (rc != 1)
{
NetUseDel();
exit(1, "Could not connect to IPC$ share.");
}
# Connect to the remote registry
hklm = RegConnectRegistry(hkey:HKEY_LOCAL_MACHINE);
if (isnull(hklm))
{
NetUseDel();
exit(1, "Could not connect to the remote registry.");
}
# Determine whether the workaround has been implemented
info = "";
if (report_paranoia > 1)
{
info =
'\nNote, though that Nessus did not check whether the workaround has'+
'\nbeen implemented because of the Report Paranoia setting in effected'+
'\nwhen this scan was run.\n';
}
else
{
if (BES4)
{
key = "SOFTWARE\Research In Motion\BBAttachServer\BBAttachBESEXtension";
key_h = RegOpenKey(handle:hklm, key:key, mode:MAXIMUM_ALLOWED);
if (!isnull(key_h))
{
item = RegQueryValue(handle:key_h, item:"BBAttachFormatList");
if (!isnull(item))
{
formats = item[1];
if ("|pdf|" >< formats) info += '\n - The format extensions field includes \'pdf\'.';
}
RegCloseKey(handle:key_h);
}
}
key = "SOFTWARE\Research In Motion\BBAttachEngine\Distillers\LoadPDFDistiller";
key_h = RegOpenKey(handle:key_h, key:key, mode:MAXIMUM_ALLOWED);
if (!isnull(key_h))
{
item = RegQueryValue(handle:key_h, item:"Enabled");
if (!isnull(item))
{
enabled = item[1];
if (enabled) info += '\n - The PDF distiller is enabled.';
}
RegCloseKey(handle:key_h);
}
if (info)
{
if (BES4 || max_index(split(info)) > 1)
{
info =
'\nNessus has determined that the workaround described in the' +
'\nvendor\'s advisory has not been implemented because :' +
'\n' +
info;
}
else
{
info =
'\nNessus had determined that the workaround described in the' +
'\nvendor\'s advisory has only been partially implemented' +
'\nbecause :' +
'\n' +
info;
}
}
}
RegCloseKey(handle:hklm);
# Check if the patch for BlackBerry ES was applied.
vuln = FALSE;
if (!isnull(path))
{
share = ereg_replace(pattern:'^([A-Za-z]):.*', replace:'\\1$', string:path);
path2 = ereg_replace(pattern:'^[A-Za-z]:(.*)', replace:'\\1\\', string:path);
NetUseDel(close:FALSE);
rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc == 1)
{
dlls = make_list(
'AttachServer\\BBDecorator\\BBRenderingDecorator.dll',
'AttachServer\\BBDecorator\\BBXRenderingDecorator.dll',
'AttachServer\\BBDistiller\\BBDM_PDF.dll'
);
dll_probs = '';
foreach dll (dlls)
{
fh = CreateFile(
file:path2+dll,
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);
if (ver)
{
if (
(
(
BES4 && ver[0] == 4 && ver[1] == 1 &&
(
(ver[2] < 6) ||
(ver[2] == 6 && ver[3] < 20) ||
(ver[2] == 7 && ver[3] < 12)
)
) ||
(
BES5 && ver[0] == 5 && ver[1] == 0 &&
(
(ver[2] == 0 && ver[3] < 60) ||
(ver[2] == 1 && ver[3] < 38) ||
(ver[2] == 2 && ver[3] < 20)
)
) ||
(
BESPro &&
(
(ver[0] < 4) ||
(ver[0] == 4 && ver[1] < 1) ||
(ver[0] == 4 && ver[1] == 1 && ver[2] < 4) ||
(ver[0] == 4 && ver[1] == 1 && ver[2] == 4 && ver[3] <= 24)
)
)
)
)
{
file_version = join(sep:'.', ver);
dll_probs += ' - ' + dll + ' (version ' + file_version + ')\n';
vuln = TRUE;
}
}
else dll_probs += ' - ' + dll + ' (unknown version)\n';
CloseFile(handle:fh);
}
else dll_probs += ' - ' + dll + ' (unable to open file)\n';
}
# There's no vulnerability if we could determine the DLLs have been patched.
if (!dll_probs) info = "";
# Otherwise if there's at least one patched file...
else if (max_index(split(dll_probs)) <= max_index(keys(dlls)))
{
if (max_index(split(dll_probs)) > 1) s = "s are";
else s = " is";
if (vuln)
{
info = info +
'\nIn addition, it appears that the patch has not been' +
'\ninstalled completely as the following file' + s + ' still' +
'\nvulnerable :\n' +
'\n' +
dll_probs;
}
else exit(1, "There was an issue accessing at least one of the affected DLLs.");
}
}
}
NetUseDel();
# Report if an issue was found
if (info)
{
if (report_verbosity > 0)
{
report =
'\n Product : ' + prod +
'\n Version : ' + version +
'\n Fix : ' + fix +
'\n Comments : ' + str_replace(find:'\n', replace:'\n ', string:info);
security_hole(port:port, extra:report);
}
else security_hole(port);
}
else exit(0, prod + ' ' + version + ' is installed and not affected.');
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