Vulnerabilities > CVE-2015-8021 - Improper Access Control vulnerability in F5 products

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
LOW
Availability impact
NONE
network
low complexity
f5
CWE-284
nessus
NVD
Published: 2016-04-12
Updated: 2024-11-21

Summary

Incomplete blacklist vulnerability in the Configuration utility in F5 BIG-IP LTM, Analytics, APM, ASM, GTM, Link Controller, and PSM 11.x before 11.2.1 HF11, 11.3.x, 11.4.0 before HF8, and 11.4.1 before HF6; BIG-IP AAM 11.4.0 before HF8 and 11.4.1 before HF6; BIG-IP AFM and PEM 11.3.x, 11.4.0 before HF8, and 11.4.1 before HF6; and BIG-IP Edge Gateway, WebAccelerator, and WOM 11.x before 11.2.1 HF11 and 11.3.0 allows remote authenticated users to upload files via uploadImage.php.

Vulnerable Configurations

Part Description Count
Application
F5
71

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Signature Spoofing by Key Theft
    An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.

Nessus

NASL familyF5 Networks Local Security Checks
NASL idF5_BIGIP_SOL49580002.NASL
descriptionThe BIG-IP Configuration utility may not properly validate file type or contents where uploaded files are allowed in the Access Policy Manager configuration section ( uploadImage.php). (CVE-2015-8021)
last seen2020-06-01
modified2020-06-02
plugin id88025
published2016-01-21
reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/88025
titleF5 Networks BIG-IP : BIG-IP file validation vulnerability (K49580002)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K49580002.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(88025);
  script_version("2.11");
  script_cvs_date("Date: 2019/01/04 10:03:40");

  script_cve_id("CVE-2015-8021");

  script_name(english:"F5 Networks BIG-IP : BIG-IP file validation vulnerability (K49580002)");
  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:
"The BIG-IP Configuration utility may not properly validate file type
or contents where uploaded files are allowed in the Access Policy
Manager configuration section ( uploadImage.php). (CVE-2015-8021)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K49580002"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K49580002."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:"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:/a:f5:big-ip_wan_optimization_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_webaccelerator");
  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:"patch_publication_date", value:"2016/01/19");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/21");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 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 = "K49580002";
vmatrix = make_array();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# AFM
vmatrix["AFM"] = make_array();
vmatrix["AFM"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7");
vmatrix["AFM"]["unaffected"] = make_list("12.0.0","11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10");

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.4.0-11.4.0HF7");
vmatrix["AM"]["unaffected"] = make_list("12.0.0","11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10");

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7","11.0.0-11.2.1HF10");
vmatrix["APM"]["unaffected"] = make_list("12.0.0","11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10","11.2.1HF11-11.2.1HF15","10.1.0-10.2.4");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7","11.0.0-11.2.1HF10");
vmatrix["ASM"]["unaffected"] = make_list("12.0.0","11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10","11.2.1HF11-11.2.1HF15","10.1.0-10.2.4");

# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7","11.0.0-11.2.1HF10");
vmatrix["AVR"]["unaffected"] = make_list("12.0.0","11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10","11.2.1HF11-11.2.1HF15");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7","11.0.0-11.2.1HF10");
vmatrix["GTM"]["unaffected"] = make_list("11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10","11.2.1HF11-11.2.1HF15","10.1.0-10.2.4");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7","11.0.0-11.2.1HF10");
vmatrix["LC"]["unaffected"] = make_list("12.0.0","11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10","11.2.1HF11-11.2.1HF15","10.1.0-10.2.4");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7","11.0.0-11.2.1HF10");
vmatrix["LTM"]["unaffected"] = make_list("12.0.0","11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10","11.2.1HF11-11.2.1HF15","10.1.0-10.2.4");

# PEM
vmatrix["PEM"] = make_array();
vmatrix["PEM"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7");
vmatrix["PEM"]["unaffected"] = make_list("12.0.0","11.4.1HF6-11.6.0","11.4.0HF8-11.4.0HF10");

# PSM
vmatrix["PSM"] = make_array();
vmatrix["PSM"]["affected"  ] = make_list("11.4.1-11.4.1HF5","11.3.0-11.4.0HF7","11.0.0-11.2.1HF10");
vmatrix["PSM"]["unaffected"] = make_list("11.4.1HF6-11.4.1HF9","11.4.0HF8-11.4.0HF10","11.2.1HF11-11.2.1HF15");

# WAM
vmatrix["WAM"] = make_array();
vmatrix["WAM"]["affected"  ] = make_list("11.3.0","11.0.0-11.2.1HF10");
vmatrix["WAM"]["unaffected"] = make_list("11.2.1HF11-11.2.1HF15","10.1.0-10.2.4");

# WOM
vmatrix["WOM"] = make_array();
vmatrix["WOM"]["affected"  ] = make_list("11.3.0","11.0.0-11.2.1HF10");
vmatrix["WOM"]["unaffected"] = make_list("11.2.1HF11-11.2.1HF15","10.1.0-10.2.4");


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");
}

References