CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
EPSS
Percentile
57.6%
According to its version number, the remote F5 Networks BIG-IQ device is affected by an authentication bypass vulnerability due to a flaw in the REST API. An unauthenticated, remote attacker can exploit this to obtain an authentication token for arbitrary LDAP user accounts when the device is configured to use LDAP remote authentication and the LDAP server allows anonymous BIND operations.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(85693);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2015-4637");
script_bugtraq_id(75943);
script_name(english:"F5 Networks BIG-IQ REST API Authentication Bypass (SOL16861)");
script_summary(english:"Checks BIG-IQ version.");
script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by an authentication bypass vulnerability.");
script_set_attribute(attribute:"description", value:
"According to its version number, the remote F5 Networks BIG-IQ device
is affected by an authentication bypass vulnerability due to a flaw in
the REST API. An unauthenticated, remote attacker can exploit this to
obtain an authentication token for arbitrary LDAP user accounts when
the device is configured to use LDAP remote authentication and the
LDAP server allows anonymous BIND operations.");
# https://support.f5.com/kb/en-us/solutions/public/16000/800/sol16861.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e7aa2ed3");
script_set_attribute(attribute:"solution", value:
"Upgrade to F5 Networks BIG-IQ version 4.4.0 HF2 / 4.5.0 HF2.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
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:"2015/07/06");
script_set_attribute(attribute:"patch_publication_date", value:"2015/07/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/28");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-iq");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-iq_cloud");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-iq_device");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-iq_security");
script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-iq_adc");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2015-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("f5_bigiq_detect.nbin");
script_require_keys("Host/BIG-IQ/version", "Settings/ParanoidReport");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
version = get_kb_item_or_exit("Host/BIG-IQ/version");
hotfix = get_kb_item_or_exit("Host/BIG-IQ/hotfix");
# Even if LDAP is configured, the LDAP server
# has to also allow anonymous binds, there is
# no way to check for this.
if (report_paranoia < 2) audit(AUDIT_PARANOID);
fix = FALSE;
if (version =~ "^4\.4(\.|$)" && int(hotfix) < 2)
fix = "4.4.0 HF2";
else if(version =~ "^4\.5(\.|$)" && int(hotfix) < 2)
fix = "4.5.0 HF2";
else
audit(AUDIT_INST_VER_NOT_VULN, "BIG-IQ", version);
if (fix)
{
if (report_verbosity > 0)
{
report =
'\n Installed version : ' + version +
'\n Fixed version : ' + fix +
'\n';
security_warning(port:0, extra:report);
}
else security_warning(0);
exit(0);
}
else audit(AUDIT_INST_VER_NOT_VULN, "BIG-IQ", version);