| code | #
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(73376);
script_version("1.7");
script_cvs_date("Date: 2019/11/26");
script_cve_id("CVE-2013-4614");
script_bugtraq_id(60601, 66527);
script_name(english:"Canon PIXMA Printer WLAN Credential Disclosure");
script_summary(english:"Attempts to obtain WLAN credentials from printer");
script_set_attribute(attribute:"synopsis", value:
"The remote printer discloses sensitive authentication information.");
script_set_attribute(attribute:"description", value:
"The remote printer contains a flaw that could allow a remote attacker
to obtain sensitive information. The HTTP admin interface contains
WLAN authentication information (WEP/WPA/WPA2) in plaintext.");
script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2013/Jun/145");
script_set_attribute(attribute:"see_also", value:"http://www.mattandreko.com/2013/06/canon-y-u-no-security.html");
script_set_attribute(attribute:"solution", value:
"Set an administrative password on the device.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:U/RC:ND");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2013-4614");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_nessus", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/06/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/04/07");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"x-cpe:/h:canon:pixma_printer");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("canon_pixma_printer_www_detect.nbin");
script_require_keys("www/canon_pixma");
script_require_ports("Services/www", 80);
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("webapp_func.inc");
include("network_func.inc");
# May fork
port = get_kb_item_or_exit("www/canon_pixma");
# Do not pull this information across public networks
if (!is_private_addr() && !islocalnet())
exit(0, "Remote host is not on the same local network.");
# Make the request and check for disclosure
res = http_send_recv3(
method : "GET",
item : "/English/pages_WinUS/_wls_set.html",
port : port
);
url = "/English/pages_MacUS/_wls_set.html";
if (!res)
{
res = http_send_recv3(
method : "GET",
item : url,
port : port,
exit_on_fail : TRUE
);
}
creds_found = make_array();
creds_source = make_array();
creds_patterns = make_array(
# WEP inputs
'wep_1', '<input type="password" name="WLS_TXT11".*value="([^"]+)"></td>',
'wep_2', '<input type="password" name="WLS_TXT12".*value="([^"]+)"></td>',
'wep_3', '<input type="password" name="WLS_TXT13".*value="([^"]+)"></td>',
'wep_4', '<input type="password" name="WLS_TXT14".*value="([^"]+)"></td>',
# WPA input
'wpa', '<input type="password".*name="WLS_TXT2" value="([^"]+)"></td>',
# WPA2 input
'wpa2', '<input type="password".*name="WLS_TXT3" value="([^"]+)"></td>',
# SSID
"ssid", '<input type="hidden" name="LAN_TXT1" value="([^"]+)">'
);
foreach sought_cred (keys(creds_patterns))
{
matches = eregmatch(pattern:creds_patterns[sought_cred] , string:res[2]);
if (isnull(matches)) continue;
# Source and cred
creds_source[sought_cred] = matches[0];
creds_found[sought_cred] = matches[1];
}
# Build report
foreach item (keys(creds_found))
{
if ("ssid" == item) continue; # Get SSID later
if ("wep" >< item) type = "WEP";
if ("wpa" == item) type = "WPA";
if ("wpa2" == item) type = "WPA2";
# Mask credential
cred = creds_found[item];
len = strlen(cred);
first = substr(cred, 0, 0);
last = substr(cred, len - 1, len - 1);
sanitized_cred = first + crap(data:"*", length:len - 2) + last;
report_data +=
'\n Type : ' + type +
'\n Credential : ' + sanitized_cred;
}
# Add SSID
matches = eregmatch(pattern:creds_patterns['ssid'] , string:res[2]);
if (!isnull(matches))
report_data += '\n SSID : ' + matches[1] + '\n';
if (strlen(report_data) > 0)
{
if (report_verbosity > 0)
{
report =
'\n' + 'Nessus was able to obtain the following sensitive information' +
'\n' + 'from the remote printer : ' +
'\n' +
'\n' + ' URL : ' + build_url(qs:url, port:port) +
report_data +
'\n';
security_note(port:port, extra:report);
}
else security_note(port);
exit(0);
}
else exit(0, "The remote Canon PIXMA printer listening on port " + port + " is not affected.");
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