Vulnerabilities > CVE-2016-10258 - Unrestricted Upload of File with Dangerous Type vulnerability in Broadcom Advanced Secure Gateway and Symantec Proxysg

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
HIGH
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
broadcom
CWE-434
nessus
exploit available

Summary

Unrestricted file upload vulnerability in the Symantec Advanced Secure Gateway (ASG) and ProxySG management consoles. A malicious appliance administrator can upload arbitrary malicious files to the management console and trick another administrator user into downloading and executing malicious code.

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.

Exploit-Db

idEDB-ID:47392
last seen2019-09-16
modified2019-09-16
published2019-09-16
reporterExploit-DB
sourcehttps://www.exploit-db.com/download/47392
titleSymantec Advanced Secure Gateway (ASG) / ProxySG - Unrestricted File Upload

Nessus

NASL familyFirewalls
NASL idSYMANTEC_PROXY_SG_SA162.NASL
descriptionThe self-reported SGOS version installed on the remote Symante ProxySG device is 6.5.x prior to 6.5.10.8, 6.6.x prior to 6.6.5.14, 6.7.3.x prior to 6.7.3.7, or 6.7.4.x prior to 6.7.4.1. It is, therefore, affected by multiple vulnerabilities: - An unrestricted file upload vulnerability exists in the ASG and ProxySG management consoles. A malicious appliance administrator can upload arbitrary malicious files to the management console and trick another administrator user into downloading and executing malicious code. (CVE-2016-10258) - A denial-of-service (DoS) vulnerability in the ASG and ProxySG management consoles. A remote attacker can use crafted HTTP/HTTPS requests to cause denial-of-service through management console application crashes. (CVE-2017-13677) - A stored XSS vulnerability exists the ASG and ProxySG management consoles in that a malicious appliance administrator can inject arbitrary JavaScript code in the management console web client application. (CVE-2017-13678)
last seen2020-06-01
modified2020-06-02
plugin id109035
published2018-04-13
reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/109035
titleSymantec ProxySG 6.5 < 6.5.10.8 / 6.6 < 6.6.5.14 / 6.7.3 < 6.7.3.7 / 6.7.4 < 6.7.4.1 Multiple Vulnerabilities (SA162)
code
#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(109035);
  script_version("1.7");
  script_cvs_date("Date: 2020/01/07");

  script_cve_id("CVE-2016-10258", "CVE-2017-13677", "CVE-2017-13678");
  script_bugtraq_id(103685);

  script_name(english:"Symantec ProxySG 6.5 < 6.5.10.8 / 6.6 < 6.6.5.14 / 6.7.3 < 6.7.3.7 / 6.7.4 < 6.7.4.1 Multiple Vulnerabilities (SA162)");
  script_summary(english:"Checks the Symantec ProxySG SGOS version.");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The self-reported SGOS version installed on the remote Symante ProxySG device is 6.5.x prior to 6.5.10.8, 6.6.x prior
to 6.6.5.14, 6.7.3.x prior to 6.7.3.7, or 6.7.4.x prior to 6.7.4.1. It is, therefore, affected by multiple
vulnerabilities:

  - An unrestricted file upload vulnerability exists in the ASG and ProxySG management consoles. A malicious
    appliance administrator can upload arbitrary malicious files to the management console and trick another
    administrator user into downloading and executing malicious code. (CVE-2016-10258)

  - A denial-of-service (DoS) vulnerability in the ASG and ProxySG management consoles. A remote attacker can
    use crafted HTTP/HTTPS requests to cause denial-of-service through management console application crashes.
    (CVE-2017-13677)

  - A stored XSS vulnerability exists the ASG and ProxySG management consoles in that a malicious appliance
    administrator can inject arbitrary JavaScript code in the management console web client application.
    (CVE-2017-13678)");
  # https://www.symantec.com/security-center/network-protection-security-advisories/SA162
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?26c3b5a9");
  script_set_attribute(attribute:"see_also", value:"https://support.symantec.com/us/en/article.prod1629.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Symantec ProxySG SGOS version 6.5.10.8 / 6.6.5.14 / 6.7.3.7 / 6.7.4.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-10258");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/h:symantec:proxysg");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Firewalls");

  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("bluecoat_proxy_sg_version.nasl");
  script_require_keys("Host/BlueCoat/ProxySG/Version");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

app_info = vcf::proxysg::get_app_info();

vcf::check_granularity(app_info:app_info, sig_segments:4);
constraints = [
  { 'min_version' : '6.5', 'fixed_version' : '6.5.10.8' },
  { 'min_version' : '6.6', 'fixed_version' : '6.6.5.14' },
  { 'min_version' : '6.7', 'fixed_version' : '6.7.3.7' },
  { 'min_version' : '6.7.4', 'fixed_version' : '6.7.4.1' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING, flags:{xss:TRUE});