Vulnerabilities > CVE-2020-6485 - Improper Input Validation vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
HIGH Availability impact
NONE Summary
Insufficient data validation in media router in Google Chrome prior to 83.0.4103.61 allowed a remote attacker who had compromised the renderer process to bypass navigation restrictions via a crafted HTML page.
Vulnerable Configurations
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 family FreeBSD Local Security Checks NASL id FREEBSD_PKG_38C676BD9DEF11EAA94C3065EC8FD3EC.NASL description Google Chrome Releases reports : This release includes 38 security fixes, including CVEs CVE-2020-6465 through CVE-2020-6491. last seen 2020-05-31 modified 2020-05-26 plugin id 136849 published 2020-05-26 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136849 title FreeBSD : chromium -- multiple vulnerabilities (38c676bd-9def-11ea-a94c-3065ec8fd3ec) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from the FreeBSD VuXML database : # # Copyright 2003-2020 Jacques Vidrine and contributors # # Redistribution and use in source (VuXML) and 'compiled' forms (SGML, # HTML, PDF, PostScript, RTF and so forth) with or without modification, # are permitted provided that the following conditions are met: # 1. Redistributions of source code (VuXML) must retain the above # copyright notice, this list of conditions and the following # disclaimer as the first lines of this file unmodified. # 2. Redistributions in compiled form (transformed to other DTDs, # published online in any format, converted to PDF, PostScript, # RTF and other formats) must reproduce the above copyright # notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION, # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # include("compat.inc"); if (description) { script_id(136849); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/28"); script_cve_id("CVE-2020-6465", "CVE-2020-6466", "CVE-2020-6467", "CVE-2020-6468", "CVE-2020-6469", "CVE-2020-6470", "CVE-2020-6471", "CVE-2020-6472", "CVE-2020-6473", "CVE-2020-6474", "CVE-2020-6475", "CVE-2020-6476", "CVE-2020-6477", "CVE-2020-6478", "CVE-2020-6479", "CVE-2020-6480", "CVE-2020-6481", "CVE-2020-6482", "CVE-2020-6483", "CVE-2020-6484", "CVE-2020-6485", "CVE-2020-6486", "CVE-2020-6487", "CVE-2020-6488", "CVE-2020-6489", "CVE-2020-6490", "CVE-2020-6491"); script_name(english:"FreeBSD : chromium -- multiple vulnerabilities (38c676bd-9def-11ea-a94c-3065ec8fd3ec)"); script_summary(english:"Checks for updated package in pkg_info output"); script_set_attribute( attribute:"synopsis", value:"The remote FreeBSD host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "Google Chrome Releases reports : This release includes 38 security fixes, including CVEs CVE-2020-6465 through CVE-2020-6491." ); # https://chromereleases.googleblog.com/2020/05/stable-channel-update-for-desktop_19.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?26bb137e" ); # https://vuxml.freebsd.org/freebsd/38c676bd-9def-11ea-a94c-3065ec8fd3ec.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?709276be" ); script_set_attribute(attribute:"solution", value:"Update the affected package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); 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:N/UI:R/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-2020-6477"); 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:"p-cpe:/a:freebsd:freebsd:chromium"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/19"); script_set_attribute(attribute:"patch_publication_date", value:"2020/05/24"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/26"); 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:"FreeBSD Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info"); exit(0); } include("audit.inc"); include("freebsd_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD"); if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (pkg_test(save_report:TRUE, pkg:"chromium<83.0.4103.61")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");NASL family MacOS X Local Security Checks NASL id MACOSX_GOOGLE_CHROME_83_0_4103_61.NASL description The version of Google Chrome installed on the remote macOS host is prior to 83.0.4103.61. It is, therefore, affected by multiple vulnerabilities as referenced in the 2020_05_stable-channel-update-for-desktop_19 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-06 modified 2020-05-21 plugin id 136742 published 2020-05-21 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136742 title Google Chrome < 83.0.4103.61 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include('compat.inc'); if (description) { script_id(136742); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/05"); script_cve_id( "CVE-2020-6465", "CVE-2020-6466", "CVE-2020-6467", "CVE-2020-6468", "CVE-2020-6469", "CVE-2020-6470", "CVE-2020-6471", "CVE-2020-6472", "CVE-2020-6473", "CVE-2020-6474", "CVE-2020-6475", "CVE-2020-6476", "CVE-2020-6477", "CVE-2020-6478", "CVE-2020-6479", "CVE-2020-6480", "CVE-2020-6481", "CVE-2020-6482", "CVE-2020-6483", "CVE-2020-6484", "CVE-2020-6485", "CVE-2020-6486", "CVE-2020-6487", "CVE-2020-6488", "CVE-2020-6489", "CVE-2020-6490", "CVE-2020-6491" ); script_xref(name:"IAVA", value:"2020-A-0220-S"); script_name(english:"Google Chrome < 83.0.4103.61 Multiple Vulnerabilities"); script_set_attribute(attribute:"synopsis", value: "A web browser installed on the remote macOS host is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Google Chrome installed on the remote macOS host is prior to 83.0.4103.61. 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Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-06 modified 2020-05-21 plugin id 136743 published 2020-05-21 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136743 title Google Chrome < 83.0.4103.61 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include('compat.inc'); if (description) { script_id(136743); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/05"); script_cve_id( "CVE-2020-6465", "CVE-2020-6466", "CVE-2020-6467", "CVE-2020-6468", "CVE-2020-6469", "CVE-2020-6470", "CVE-2020-6471", "CVE-2020-6472", "CVE-2020-6473", "CVE-2020-6474", "CVE-2020-6475", "CVE-2020-6476", "CVE-2020-6477", "CVE-2020-6478", "CVE-2020-6479", "CVE-2020-6480", "CVE-2020-6481", "CVE-2020-6482", "CVE-2020-6483", "CVE-2020-6484", "CVE-2020-6485", "CVE-2020-6486", "CVE-2020-6487", "CVE-2020-6488", "CVE-2020-6489", "CVE-2020-6490", "CVE-2020-6491" ); script_xref(name:"IAVA", value:"2020-A-0220-S"); script_name(english:"Google Chrome < 83.0.4103.61 Multiple Vulnerabilities"); script_set_attribute(attribute:"synopsis", value: "A web browser installed on the remote Windows host is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Google Chrome installed on the remote Windows host is prior to 83.0.4103.61. 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References
- https://chromereleases.googleblog.com/2020/05/stable-channel-update-for-desktop_19.html
- https://crbug.com/1047285
- https://security.gentoo.org/glsa/202006-02
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00034.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00038.html
- https://www.debian.org/security/2020/dsa-4714
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQYH5OK7O4BU6E37WWG5SEEHV65BFSGR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WLFZ5N4EK6I4ZJP5YSKLLVN3ELXEB4XT/