Vulnerabilities > CVE-2018-15333 - Unrestricted Upload of File with Dangerous Type vulnerability in F5 products

047910
CVSS 5.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
local
low complexity
f5
CWE-434
nessus
NVD
Published: 2018-12-28
Updated: 2023-11-07

Summary

On versions 11.2.1. and greater, unrestricted Snapshot File Access allows BIG-IP system's user with any role, including Guest Role, to have access and download previously generated and available snapshot files on the BIG-IP configuration utility such as QKView and TCPDumps.

Vulnerable Configurations

Part Description Count
Application
F5
864

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing Functionality Not Properly Constrained by ACLs
    In applications, particularly web applications, access to functionality is mitigated by the authorization framework, whose job it is to map ACLs to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application or can run queries for data that he is otherwise not supposed to.
  • Privilege Abuse
    An adversary is able to exploit features of the target that should be reserved for privileged users or administrators but are exposed to use by lower or non-privileged accounts. Access to sensitive information and functionality must be controlled to ensure that only authorized users are able to access these resources. If access control mechanisms are absent or misconfigured, a user may be able to access resources that are intended only for higher level users. An adversary may be able to exploit this to utilize a less trusted account to gain information and perform activities reserved for more trusted accounts. This attack differs from privilege escalation and other privilege stealing attacks in that the adversary never actually escalates their privileges but instead is able to use a lesser degree of privilege to access resources that should be (but are not) reserved for higher privilege accounts. Likewise, the adversary does not exploit trust or subvert systems - all control functionality is working as configured but the configuration does not adequately protect sensitive resources at an appropriate level.

Nessus

NASL familyF5 Networks Local Security Checks
NASL idF5_BIGIP_SOL53620021.NASL
descriptionOn versions 11.2.1. and greater, unrestricted Snapshot File Access allows BIG-IP system
last seen2020-05-08
modified2020-05-01
plugin id136207
published2020-05-01
reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/136207
titleF5 Networks BIG-IP : BIG-IP vulnerability (K53620021)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K53620021.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(136207);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/20");

  script_cve_id("CVE-2018-15333");

  script_name(english:"F5 Networks BIG-IP : BIG-IP vulnerability (K53620021)");
  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:
"On versions 11.2.1. and greater, unrestricted Snapshot File Access
allows BIG-IP system's user with any role, including Guest Role, to
have access and download previously generated and available snapshot
files on the BIG-IP configuration utility such as QKView and TCPDumps.
(CVE-2018-15333)

Impact

When sensitive information is included in the QKView orTCPDump files,
the unrestricted snapshot file access may leak sensitive information
to an unprivileged user."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K53620021"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K53620021."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:"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_webaccelerator");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/12/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/12/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/01");
  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 = "K53620021";
vmatrix = make_array();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# AFM
vmatrix["AFM"] = make_array();
vmatrix["AFM"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["AFM"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["AM"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["APM"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["ASM"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["AVR"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["GTM"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["LC"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["LTM"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# PEM
vmatrix["PEM"] = make_array();
vmatrix["PEM"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["PEM"]["unaffected"] = make_list("16.0.0","15.0.1.4","14.1.2.4");

# WAM
vmatrix["WAM"] = make_array();
vmatrix["WAM"]["affected"  ] = make_list("15.0.0-15.1.0","14.0.0-14.1.2","13.0.0-13.1.3","12.1.0-12.1.5","11.2.1-11.6.5");
vmatrix["WAM"]["unaffected"] = make_list("16.0.0","15.0.1.4","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");
}

References