Vulnerabilities > CVE-2020-5888 - Unspecified vulnerability in F5 products

047910
CVSS 8.1 - HIGH
Attack vector
ADJACENT_NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
NONE
low complexity
f5
nessus

Summary

On versions 15.1.0-15.1.0.1, 15.0.0-15.0.1.2, and 14.1.0-14.1.2.3, BIG-IP Virtual Edition (VE) may expose a mechanism for adjacent network (layer 2) attackers to access local daemons and bypass port lockdown settings.

Vulnerable Configurations

Part Description Count
Application
F5
607

Nessus

NASL familyF5 Networks Local Security Checks
NASL idF5_BIGIP_SOL73274382.NASL
descriptionBIG-IP Virtual Edition (VE) may expose a mechanism for adjacent network (layer 2) attackers to access local daemons and bypass port lockdown settings. (CVE-2020-5888) Impact Hosts in adjacent networks may be able to bypass port lockdown settings on BIG-IP VE hosts.
last seen2020-05-09
modified2020-04-30
plugin id136145
published2020-04-30
reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/136145
titleF5 Networks BIG-IP : BIG-IP Virtual Edition TMM vulnerability (K73274382)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K73274382.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(136145);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/08");

  script_cve_id("CVE-2020-5888");

  script_name(english:"F5 Networks BIG-IP : BIG-IP Virtual Edition TMM vulnerability (K73274382)");
  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:
"BIG-IP Virtual Edition (VE) may expose a mechanism for adjacent
network (layer 2) attackers to access local daemons and bypass port
lockdown settings. (CVE-2020-5888)

Impact

Hosts in adjacent networks may be able to bypass port lockdown
settings on BIG-IP VE hosts."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K73274382"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K73274382."
  );
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-5888");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  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_advanced_firewall_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_acceleration_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_policy_enforcement_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/30");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 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 = "K73274382";
vmatrix = make_array();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# AFM
vmatrix["AFM"] = make_array();
vmatrix["AFM"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["AFM"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["AM"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["APM"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["ASM"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");

# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["AVR"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["GTM"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["LC"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["LTM"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");

# PEM
vmatrix["PEM"] = make_array();
vmatrix["PEM"]["affected"  ] = make_list("15.1.0","15.0.0-15.0.1","14.1.0-14.1.2");
vmatrix["PEM"]["unaffected"] = make_list("15.1.0.2","15.0.1.3","14.1.2.4");


if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
  if (report_verbosity > 0) security_note(port:0, extra:bigip_report_get());
  else security_note(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");
}