Vulnerabilities > CVE-2019-5514 - Improper Input Validation vulnerability in VMWare Fusion 11.0.0/11.0.1/11.0.2

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
vmware
CWE-20
nessus

Summary

VMware VMware Fusion (11.x before 11.0.3) contains a security vulnerability due to certain unauthenticated APIs accessible through a web socket. An attacker may exploit this issue by tricking the host user to execute a JavaScript to perform unauthorized functions on the guest machine where VMware Tools is installed. This may further be exploited to execute commands on the guest machines.

Vulnerable Configurations

Part Description Count
Application
Vmware
3

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyVMware ESX Local Security Checks
    NASL idVMWARE_VMSA-2019-0005.NASL
    descriptiona. VMware ESXi, Workstation and Fusion UHCI out-of-bounds read/write and TOCTOU vulnerabilities VMware ESXi, Workstation and Fusion contain an out-of-bounds read/write vulnerability and a Time-of-check Time-of-use (TOCTOU) vulnerability in the virtual USB 1.1 UHCI (Universal Host Controller Interface). Exploitation of these issues requires an attacker to have access to a virtual machine with a virtual USB controller present. These issues may allow a guest to execute code on the host. VMware would like to thank the Fluoroacetate team of Amat Cama and Richard Zhu, working with the Pwn2Own 2019 Security Contest, for reporting these issues to us. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the identifiers CVE-2019-5518 (out-of-bounds read/write) and CVE-2019-5519 (TOCTOU) to these issues. b. VMware Workstation and Fusion out-of-bounds write vulnerability in e1000 virtual network adapter VMware Workstation and Fusion contain an out-of-bounds write vulnerability in the e1000 virtual network adapter. This issue may allow a guest to execute code on the host. VMware would like to thank security researcher Zhangyanyu of Chaitin Tech for reporting this issue to us. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the identifier CVE-2019-5524 to this issue. c. VMware Workstation and Fusion out-of-bounds write vulnerability in e1000 and e1000e virtual network adapters VMware Workstation and Fusion updates address an out-of-bounds write vulnerability in the e1000 and e1000e virtual network adapters. Exploitation of this issue may lead to code execution on the host from the guest but it is more likely to result in a denial of service of the guest. VMware would like to thank ZhanluLab working with Trend Micro
    last seen2020-06-01
    modified2020-06-02
    plugin id123556
    published2019-04-01
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/123556
    titleVMSA-2019-0005 : VMware ESXi, Workstation and Fusion updates address multiple security issues
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from VMware Security Advisory 2019-0005. 
    # The text itself is copyright (C) VMware Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(123556);
      script_version("1.4");
      script_cvs_date("Date: 2020/01/27");
    
      script_cve_id("CVE-2019-5514", "CVE-2019-5515", "CVE-2019-5518", "CVE-2019-5519", "CVE-2019-5524");
      script_xref(name:"VMSA", value:"2019-0005");
      script_xref(name:"IAVA", value:"2019-A-0099");
    
      script_name(english:"VMSA-2019-0005 : VMware ESXi, Workstation and Fusion updates address multiple security issues");
      script_summary(english:"Checks esxupdate output for the patches");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote VMware ESXi host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "a. VMware ESXi, Workstation and Fusion UHCI out-of-bounds read/write
    and TOCTOU vulnerabilities
    
    VMware ESXi, Workstation and Fusion contain an out-of-bounds read/write
    vulnerability and a Time-of-check Time-of-use (TOCTOU) vulnerability in
    the virtual USB 1.1 UHCI (Universal Host Controller Interface).
    Exploitation of these issues requires an attacker to have access to a
    virtual machine with a virtual USB controller present. These issues may
    allow a guest to execute code on the host.
    
    VMware would like to thank the Fluoroacetate team of Amat Cama and
    Richard Zhu, working with the Pwn2Own 2019 Security Contest, for
    reporting these issues to us.
    
    The Common Vulnerabilities and Exposures project (cve.mitre.org) has
    assigned the identifiers CVE-2019-5518 (out-of-bounds read/write) and
    CVE-2019-5519 (TOCTOU) to these issues.
    
    b. VMware Workstation and Fusion out-of-bounds write vulnerability in
    e1000 virtual network adapter
    
    VMware Workstation and Fusion contain an out-of-bounds write
    vulnerability in the e1000 virtual network adapter. This issue may
    allow a guest to execute code on the host.
    
    VMware would like to thank security researcher Zhangyanyu of Chaitin
    Tech for reporting this issue to us.
    
    The Common Vulnerabilities and Exposures project (cve.mitre.org) has
    assigned the identifier CVE-2019-5524 to this issue.
    
    c. VMware Workstation and Fusion out-of-bounds write vulnerability in
    e1000 and e1000e virtual network adapters
    
    VMware Workstation and Fusion updates address an out-of-bounds write
    vulnerability in the e1000 and e1000e virtual network adapters.
    Exploitation of this issue may lead to code execution on the host from
    the guest but it is more likely to result in a denial of service of the
    guest.
    
    VMware would like to thank ZhanluLab working with Trend Micro's Zero
    Day Initiative for reporting this issue to us.
    
    The Common Vulnerabilities and Exposures project (cve.mitre.org) has
    assigned the identifier CVE-2019-5515 to this issue.
    
    d. VMware Fusion unauthenticated APIs Security vulnerability
    
    VMware Fusion contains a security vulnerability due to certain
    unauthenticated APIs accessible through a web socket. An attacker may
    exploit this issue by tricking the host user to execute a JavaScript to
    perform unauthorized functions on the guest machine where VMware Tools
    is installed. This may further be exploited to execute commands on the
    guest machines.
    
    VMware would like to thank CodeColorist (@CodeColorist) and Csaba Fitzl
    (@theevilbit) for independently reporting this issue to us.
    
    The Common Vulnerabilities and Exposures project (cve.mitre.org) has
    assigned the identifier CVE-2019-5514 to this issue."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://lists.vmware.com/pipermail/security-announce/2019/000454.html"
      );
      script_set_attribute(attribute:"solution", value:"Apply the missing patches.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
      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:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-5524");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi:6.0");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi:6.5");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi:6.7");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/01");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/03/28");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/01");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"VMware ESX Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/VMware/release", "Host/VMware/version");
      script_require_ports("Host/VMware/esxupdate", "Host/VMware/esxcli_software_vibs");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("vmware_esx_packages.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/VMware/release")) audit(AUDIT_OS_NOT, "VMware ESX / ESXi");
    if (
      !get_kb_item("Host/VMware/esxcli_software_vibs") &&
      !get_kb_item("Host/VMware/esxupdate")
    ) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    init_esx_check(date:"2019-03-28");
    flag = 0;
    
    
    if (esx_check(ver:"ESXi 6.0", vib:"VMware:esx-base:6.0.0-3.113.13003896")) flag++;
    if (esx_check(ver:"ESXi 6.0", vib:"VMware:vsan:6.0.0-3.113.12980971")) flag++;
    if (esx_check(ver:"ESXi 6.0", vib:"VMware:vsanhealth:6.0.0-3000000.3.0.3.113.12980972")) flag++;
    
    if (esx_check(ver:"ESXi 6.5", vib:"VMware:esx-base:6.5.0-2.83.13004031")) flag++;
    if (esx_check(ver:"ESXi 6.5", vib:"VMware:esx-tboot:6.5.0-2.83.13004031")) flag++;
    if (esx_check(ver:"ESXi 6.5", vib:"VMware:vsan:6.5.0-2.83.12559347")) flag++;
    if (esx_check(ver:"ESXi 6.5", vib:"VMware:vsanhealth:6.5.0-2.83.12559353")) flag++;
    
    if (esx_check(ver:"ESXi 6.7", vib:"VMware:esx-base:6.7.0-1.41.13004448")) flag++;
    if (esx_check(ver:"ESXi 6.7", vib:"VMware:esx-update:6.7.0-1.41.13004448")) flag++;
    if (esx_check(ver:"ESXi 6.7", vib:"VMware:vsan:6.7.0-1.41.12909115")) flag++;
    if (esx_check(ver:"ESXi 6.7", vib:"VMware:vsanhealth:6.7.0-1.41.12909116")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:esx_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_FUSION_VMSA_2019_0005.NASL
    descriptionThe version of VMware Fusion installed on the remote macOS or Mac OS X host is 10.x prior to 10.1.6 or 11.x prior to 11.0.3. It is, therefore, affected by multiple vulnerabilities, including: - An out-of-bounds read/write vulnerability and a Time-of-check Time-of-use (TOCTOU) vulnerability in the virtual USB 1.1 UHCI (Universal Host Controller Interface). Exploitation of these issues requires an attacker to have access to a virtual machine with a virtual USB controller present. These issues may allow a guest to execute code on the host. (CVE-2019-5518, CVE-2019-5519) - An out-of-bounds write vulnerability in the e1000 virtual network adapter. This issue may allow a guest to execute code on the host. (CVE-2019-5524) - An out-of-bounds write vulnerability in the e1000 and e1000e virtual network adapters. Exploitation of this issue may lead to code execution on the host from the guest but it is more likely to result in a denial of service of the guest. (CVE-2019-5515) - A security vulnerability due to certain unauthenticated APIs accessible through a web socket. An attacker may exploit this issue by tricking the host user to execute a JavaScript to perform unauthorized functions on the guest machine where VMware Tools is installed. This may further be exploited to execute commands on the guest machines. (CVE-2019-5514) Note that CVE-2019-5524 only applies to VMware Fusion 10.x. Note that CVE-2019-5514 only applies to VMware Fusion 11.x
    last seen2020-06-01
    modified2020-06-02
    plugin id123517
    published2019-03-29
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/123517
    titleVMware Fusion 10.x < 10.1.6 / 11.x < 11.0.3 Multiple Vulnerabilities (VMSA-2019-0005) (macOS)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(123517);
      script_version("1.3");
      script_cvs_date("Date: 2019/10/30 13:24:46");
    
      script_cve_id(
        "CVE-2019-5514",
        "CVE-2019-5515",
        "CVE-2019-5518",
        "CVE-2019-5519",
        "CVE-2019-5524"
      );
      script_xref(name:"VMSA", value:"2019-0005");
      script_xref(name:"IAVA", value:"2019-A-0099");
    
      script_name(english:"VMware Fusion 10.x < 10.1.6 / 11.x < 11.0.3 Multiple Vulnerabilities (VMSA-2019-0005) (macOS)");
      script_summary(english:"Checks the VMware Fusion version.");
    
      script_set_attribute(attribute:"synopsis", value:
    "A virtualization application installed on the remote macOS or Mac OS X
    host is affected by an uninitialized stack memory usage vulnerability.");
      script_set_attribute(attribute:"description", value:
    "The version of VMware Fusion installed on the remote macOS or
    Mac OS X host is 10.x prior to 10.1.6 or 11.x prior to 11.0.3. It is,
    therefore, affected by multiple vulnerabilities, including:
    
      - An out-of-bounds read/write vulnerability and a Time-of-check
        Time-of-use (TOCTOU) vulnerability in the virtual USB 1.1 UHCI
        (Universal Host Controller Interface). Exploitation of these
        issues requires an attacker to have access to a virtual machine
        with a virtual USB controller present. These issues may allow a
        guest to execute code on the host. (CVE-2019-5518, CVE-2019-5519)
    
      - An out-of-bounds write vulnerability in the e1000 virtual network
        adapter. This issue may allow a guest to execute code on the
        host. (CVE-2019-5524)
    
      - An out-of-bounds write vulnerability in the e1000 and e1000e
        virtual network adapters. Exploitation of this issue may lead to
        code execution on the host from the guest but it is more likely
        to result in a denial of service of the guest. (CVE-2019-5515)
    
      - A security vulnerability due to certain unauthenticated APIs
        accessible through a web socket. An attacker may exploit this
        issue by tricking the host user to execute a JavaScript to
        perform unauthorized functions on the guest machine where VMware
        Tools is installed. This may further be exploited to execute
        commands on the guest machines. (CVE-2019-5514)
    
    Note that CVE-2019-5524 only applies to VMware Fusion 10.x.
    
    Note that CVE-2019-5514 only applies to VMware Fusion 11.x");
      script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-20189-0005.html");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to VMware Fusion version 10.1.6, 11.0.3, or later.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
      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:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-5524");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/28");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/03/28");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/29");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:vmware:fusion");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"MacOS X Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("macosx_fusion_detect.nasl");
      script_require_keys("Host/local_checks_enabled", "installed_sw/VMware Fusion");
    
      exit(0);
    }
    
    include("vcf.inc");
    
    app_info = vcf::get_app_info(app:"VMware Fusion");
    vcf::check_granularity(app_info:app_info, sig_segments:2);
    
    constraints = [
      { "min_version" : "10", "fixed_version" : "10.1.6" },
      { "min_version" : "11", "fixed_version" : "11.0.3" }
    ];
    
    vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);