5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.875 High
EPSS
Percentile
98.7%
PHP versions prior to 5.3.9 compute hash values for form parameters without restricting the ability to trigger hash collisions predictably, which may allow remote attackers to cause a denial of service (DoS) (CPU consumption) by sending many crafted parameters.
(CVE-2011-4885)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K13588.
#
# The text description of this plugin is (C) F5 Networks.
#
include("compat.inc");
if (description)
{
script_id(78135);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/03/10");
script_cve_id("CVE-2011-4885");
script_bugtraq_id(51193);
script_name(english:"F5 Networks BIG-IP : PHP vulnerability (K13588)");
script_summary(english:"Checks the BIG-IP version.");
script_set_attribute(
attribute:"synopsis",
value:"The remote device is missing a vendor-supplied security patch."
);
script_set_attribute(
attribute:"description",
value:
"PHP versions prior to 5.3.9 compute hash values for form parameters
without restricting the ability to trigger hash collisions
predictably, which may allow remote attackers to cause a denial of
service (DoS) (CPU consumption) by sending many crafted parameters.
(CVE-2011-4885)"
);
script_set_attribute(
attribute:"see_also",
value:"https://support.f5.com/csp/article/K13588"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K13588."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
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_set_attribute(attribute:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_access_policy_manager");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_security_manager");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_visibility_and_reporting");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_global_traffic_manager");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_link_controller");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_local_traffic_manager");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_wan_optimization_manager");
script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");
script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip_protocol_security_manager");
script_set_attribute(attribute:"vuln_publication_date", value:"2011/12/30");
script_set_attribute(attribute:"patch_publication_date", value:"2012/05/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/10/10");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"F5 Networks Local Security Checks");
script_dependencies("f5_bigip_detect.nbin");
script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version", "Settings/ParanoidReport");
exit(0);
}
include("f5_func.inc");
if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
version = get_kb_item("Host/BIG-IP/version");
if ( ! version ) audit(AUDIT_OS_NOT, "F5 Networks BIG-IP");
if ( isnull(get_kb_item("Host/BIG-IP/hotfix")) ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/hotfix");
if ( ! get_kb_item("Host/BIG-IP/modules") ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/modules");
sol = "K13588";
vmatrix = make_array();
if (report_paranoia < 2) audit(AUDIT_PARANOID);
# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected" ] = make_list("10.0.0-10.2.4","11.0.0-11.1.0");
vmatrix["APM"]["unaffected"] = make_list("11.2.0-11.4.0");
# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected" ] = make_list("10.0.0-10.2.4","11.0.0-11.1.0");
vmatrix["ASM"]["unaffected"] = make_list("11.2.0-11.4.0");
# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected" ] = make_list("11.0.0-11.1.0");
vmatrix["AVR"]["unaffected"] = make_list("11.2.0-11.4.0");
# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected" ] = make_list("10.0.0-10.2.4","11.0.0-11.1.0");
vmatrix["GTM"]["unaffected"] = make_list("11.2.0-11.4.0");
# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected" ] = make_list("10.0.0-10.2.4","11.0.0-11.1.0");
vmatrix["LC"]["unaffected"] = make_list("11.2.0-11.4.0");
# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected" ] = make_list("10.0.0-10.2.4","11.0.0-11.1.0");
vmatrix["LTM"]["unaffected"] = make_list("11.2.0-11.4.0");
# PSM
vmatrix["PSM"] = make_array();
vmatrix["PSM"]["affected" ] = make_list("10.0.0-10.2.4","11.0.0-11.1.0");
vmatrix["PSM"]["unaffected"] = make_list("11.2.0-11.4.0");
# WOM
vmatrix["WOM"] = make_array();
vmatrix["WOM"]["affected" ] = make_list("10.0.0-10.2.4","11.0.0-11.1.0");
vmatrix["WOM"]["unaffected"] = make_list("11.2.0-11.3.0");
if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
if (report_verbosity > 0) security_warning(port:0, extra:bigip_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = bigip_get_tested_modules();
audit_extra = "For BIG-IP module(s) " + tested + ",";
if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);
else audit(AUDIT_HOST_NOT, "running any of the affected modules");
}
Vendor | Product | Version | CPE |
---|---|---|---|
f5 | big-ip_access_policy_manager | cpe:/a:f5:big-ip_access_policy_manager | |
f5 | big-ip_application_security_manager | cpe:/a:f5:big-ip_application_security_manager | |
f5 | big-ip_application_visibility_and_reporting | cpe:/a:f5:big-ip_application_visibility_and_reporting | |
f5 | big-ip_global_traffic_manager | cpe:/a:f5:big-ip_global_traffic_manager | |
f5 | big-ip_link_controller | cpe:/a:f5:big-ip_link_controller | |
f5 | big-ip_local_traffic_manager | cpe:/a:f5:big-ip_local_traffic_manager | |
f5 | big-ip_wan_optimization_manager | cpe:/a:f5:big-ip_wan_optimization_manager | |
f5 | big-ip | cpe:/h:f5:big-ip | |
f5 | big-ip_protocol_security_manager | cpe:/h:f5:big-ip_protocol_security_manager |