CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
AI Score
Confidence
High
EPSS
Percentile
97.7%
The remote host is running a version of PHP 4.x older than 4.3.0. As such, it reportedly has an integer overflow in array creation that can be triggered by user-input passed to an ‘unserialize()’ function.
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on this host.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(17796);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/31");
script_cve_id("CVE-2006-4812");
script_bugtraq_id(20349);
script_name(english:"PHP 4.x < 4.3.0 ZendEngine Integer Overflow");
script_set_attribute(attribute:"synopsis", value:
"Arbitrary code may be run on the remote server.");
script_set_attribute(attribute:"description", value:
"The remote host is running a version of PHP 4.x older than 4.3.0. As
such, it reportedly has an integer overflow in array creation that can
be triggered by user-input passed to an 'unserialize()' function.
Successful exploitation of this vulnerability could allow an attacker
to execute arbitrary code on this host.");
script_set_attribute(attribute:"see_also", value:"http://www.hardened-php.net/advisory_092006.133.html");
script_set_attribute(attribute:"solution", value:
"Upgrade to PHP 4.3.0 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(94);
script_set_attribute(attribute:"vuln_publication_date", value:"2006/10/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/11");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/a:php:php");
script_set_attribute(attribute:"thorough_tests", value:"true");
script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2012-2024 Tenable Network Security, Inc.");
script_dependencies("php_version.nasl");
script_require_keys("www/PHP");
script_exclude_keys("Settings/disable_cgi_scanning");
script_require_ports("Services/www", 80);
exit(0);
}
#
# The script code starts here
#
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("audit.inc");
include("webapp_func.inc");
port = get_http_port(default:80, php:TRUE);
php = get_php_from_kb(
port : port,
exit_on_fail : TRUE
);
version = php["ver"];
source = php["src"];
backported = get_kb_item('www/php/'+port+'/'+version+'/backported');
if (report_paranoia < 2 && backported)
audit(AUDIT_BACKPORT_SERVICE, port, "PHP "+version+" install");
if (version !~ "^4\.") exit(0, "The web server on port "+port+" uses PHP "+version+" rather than 4.x.");
if (version =~ "^4\.[0-2]\.")
{
if (report_verbosity > 0)
{
report =
'\n Version source : '+source +
'\n Installed version : '+version+
'\n Fixed version : 4.3.0\n';
security_hole(port:port, extra:report);
}
else security_hole(port);
exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, "PHP", port, version);