Vulnerabilities > CVE-2020-6425 - Improper Input Validation vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
LOW Integrity impact
LOW Availability impact
NONE Summary
Insufficient policy enforcement in extensions in Google Chrome prior to 80.0.3987.149 allowed an attacker who convinced a user to install a malicious extension to bypass site isolation via a crafted Chrome Extension.
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 Fedora Local Security Checks NASL id FEDORA_2020-39E0B8BD14.NASL description Update to 80.0.3987.149. Upstream says it fixes last seen 2020-05-31 modified 2020-03-30 plugin id 134990 published 2020-03-30 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134990 title Fedora 30 : chromium (2020-39e0b8bd14) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2020-39e0b8bd14. # include("compat.inc"); if (description) { script_id(134990); script_version("1.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/29"); script_cve_id("CVE-2019-20446", "CVE-2019-20503", "CVE-2020-10531", "CVE-2020-6378", "CVE-2020-6379", "CVE-2020-6380", "CVE-2020-6381", "CVE-2020-6382", "CVE-2020-6383", "CVE-2020-6384", "CVE-2020-6385", "CVE-2020-6386", "CVE-2020-6387", "CVE-2020-6388", "CVE-2020-6389", "CVE-2020-6390", "CVE-2020-6391", "CVE-2020-6392", "CVE-2020-6393", "CVE-2020-6394", "CVE-2020-6395", "CVE-2020-6396", "CVE-2020-6397", "CVE-2020-6398", "CVE-2020-6399", "CVE-2020-6400", "CVE-2020-6401", "CVE-2020-6402", "CVE-2020-6403", "CVE-2020-6404", "CVE-2020-6405", "CVE-2020-6406", "CVE-2020-6407", "CVE-2020-6408", "CVE-2020-6409", "CVE-2020-6410", "CVE-2020-6411", "CVE-2020-6412", "CVE-2020-6413", "CVE-2020-6414", "CVE-2020-6415", "CVE-2020-6416", "CVE-2020-6417", "CVE-2020-6418", "CVE-2020-6420", "CVE-2020-6422", "CVE-2020-6424", "CVE-2020-6425", "CVE-2020-6426", "CVE-2020-6427", "CVE-2020-6428", "CVE-2020-6429", "CVE-2020-6449"); script_xref(name:"FEDORA", value:"2020-39e0b8bd14"); script_name(english:"Fedora 30 : chromium (2020-39e0b8bd14)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "Update to 80.0.3987.149. Upstream says it fixes '13' security issues, but only lists these CVEs : - CVE-2020-6422: Use after free in WebGL - CVE-2020-6424: Use after free in media - CVE-2020-6425: Insufficient policy enforcement in extensions. - CVE-2020-6426: Inappropriate implementation in V8 - CVE-2020-6427: Use after free in audio - CVE-2020-6428: Use after free in audio - CVE-2020-6429: Use after free in audio. - CVE-2019-20503: Out of bounds read in usersctplib. - CVE-2020-6449: Use after free in audio ---- Update to 80.0.3987.132. Lots of security fixes here. VAAPI re-enabled by default except on NVIDIA. List of CVEs fixed (since last update) : - CVE-2019-20446 - CVE-2020-6381 - CVE-2020-6382 - CVE-2020-6383 - CVE-2020-6384 - CVE-2020-6385 - CVE-2020-6386 - CVE-2020-6387 - CVE-2020-6388 - CVE-2020-6389 - CVE-2020-6390 - CVE-2020-6391 - CVE-2020-6392 - CVE-2020-6393 - CVE-2020-6394 - CVE-2020-6395 - CVE-2020-6396 - CVE-2020-6397 - CVE-2020-6398 - CVE-2020-6399 - CVE-2020-6400 - CVE-2020-6401 - CVE-2020-6402 - CVE-2020-6403 - CVE-2020-6404 - CVE-2020-6405 - CVE-2020-6406 - CVE-2020-6407 - CVE-2020-6408 - CVE-2020-6409 - CVE-2020-6410 - CVE-2020-6411 - CVE-2020-6412 - CVE-2020-6413 - CVE-2020-6414 - CVE-2020-6415 - CVE-2020-6416 - CVE-2020-6417 - CVE-2020-6418 - CVE-2020-6420 ---- Update to 79.0.3945.130. Fixes the following security issues : - CVE-2020-6378 - CVE-2020-6379 - CVE-2020-6380 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bodhi.fedoraproject.org/updates/FEDORA-2020-39e0b8bd14" ); script_set_attribute( attribute:"solution", value:"Update the affected chromium package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:F/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:F/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"metasploit_name", value:'Google Chrome 80 JSCreate side-effect type confusion exploit'); script_set_attribute(attribute:"exploit_framework_metasploit", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:chromium"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:30"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/02"); script_set_attribute(attribute:"patch_publication_date", value:"2020/03/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/30"); 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:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^30([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 30", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC30", reference:"chromium-80.0.3987.149-1.fc30", allowmaj:TRUE)) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "chromium"); }NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-202003-53.NASL description The remote host is affected by the vulnerability described in GLSA-202003-53 (Chromium, Google Chrome: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Chromium and Google Chrome. Please review the referenced CVE identifiers for details. Impact : A remote attacker could entice a user to open a specially crafted HTML or multimedia file using Chromium or Google Chrome, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-03-31 modified 2020-03-26 plugin id 134928 published 2020-03-26 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134928 title GLSA-202003-53 : Chromium, Google Chrome: Multiple vulnerabilities NASL family SuSE Local Security Checks NASL id OPENSUSE-2020-365.NASL description This update for chromium to version 80.0.3987.149 fixes the following issues : Chromium was update to 80.0.3987.149 (bsc#1167090) : - CVE-2020-6422: Fixed a use after free in WebGL. - CVE-2020-6424: Fixed a use after free in media. - CVE-2020-6425: Fixed an insufficient policy enforcement in extensions. - CVE-2020-6426: Fixed an inappropriate implementation in V8. - CVE-2020-6427: Fixed a use after free in audio. - CVE-2020-6428: Fixed a use after free in audio. - CVE-2020-6429: Fixed a use after free in audio. - CVE-2019-20503: Fixed an out of bounds read in usersctplib. - CVE-2020-6449: Fixed a use after free in audio. last seen 2020-05-31 modified 2020-03-23 plugin id 134822 published 2020-03-23 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134822 title openSUSE Security Update : chromium (openSUSE-2020-365) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1270.NASL description The remote Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:1270 advisory. - usrsctp: Out of bounds reads in sctp_load_addresses_from_init() (CVE-2019-20503) - chromium-browser: Use after free in WebGL (CVE-2020-6422) - chromium-browser: Use after free in media (CVE-2020-6424) - chromium-browser: Insufficient policy enforcement in extensions (CVE-2020-6425) - chromium-browser: Inappropriate implementation in V8 (CVE-2020-6426) - chromium-browser: Use after free in audio (CVE-2020-6427, CVE-2020-6428, CVE-2020-6429, CVE-2020-6449) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-02 modified 2020-04-01 plugin id 135086 published 2020-04-01 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135086 title RHEL 6 : chromium-browser (RHSA-2020:1270) NASL family Fedora Local Security Checks NASL id FEDORA_2020-7FD051B378.NASL description Update to 80.0.3987.149. Upstream says it fixes last seen 2020-05-31 modified 2020-03-24 plugin id 134842 published 2020-03-24 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134842 title Fedora 31 : chromium (2020-7fd051b378) NASL family Windows NASL id GOOGLE_CHROME_80_0_3987_149.NASL description The version of Google Chrome installed on the remote Windows host is prior to 80.0.3987.149. It is, therefore, affected by multiple vulnerabilities as referenced in the 2020_03_stable-channel-update-for-desktop_18 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-04 modified 2020-03-19 plugin id 134701 published 2020-03-19 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134701 title Google Chrome < 80.0.3987.149 Multiple Vulnerabilities NASL family MacOS X Local Security Checks NASL id MACOSX_GOOGLE_CHROME_80_0_3987_149.NASL description The version of Google Chrome installed on the remote macOS host is prior to 80.0.3987.149. It is, therefore, affected by multiple vulnerabilities as referenced in the 2020_03_stable-channel-update-for-desktop_18 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-04 modified 2020-03-19 plugin id 134700 published 2020-03-19 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134700 title Google Chrome < 80.0.3987.149 Multiple Vulnerabilities NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4645.NASL description Several vulnerabilities have been discovered in the chromium web browser. - CVE-2019-20503 Natalie Silvanovich discovered an out-of-bounds read issue in the usrsctp library. - CVE-2020-6422 David Manouchehri discovered a use-after-free issue in the WebGL implementation. - CVE-2020-6424 Sergei Glazunov discovered a use-after-free issue. - CVE-2020-6425 Sergei Glazunov discovered a policy enforcement error related to extensions. - CVE-2020-6426 Avihay Cohen discovered an implementation error in the v8 JavaScript library. - CVE-2020-6427 Man Yue Mo discovered a use-after-free issue in the audio implementation. - CVE-2020-6428 Man Yue Mo discovered a use-after-free issue in the audio implementation. - CVE-2020-6429 Man Yue Mo discovered a use-after-free issue in the audio implementation. - CVE-2020-6449 Man Yue Mo discovered a use-after-free issue in the audio implementation. last seen 2020-03-26 modified 2020-03-24 plugin id 134839 published 2020-03-24 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134839 title Debian DSA-4645-1 : chromium - security update
Redhat
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References
- https://www.debian.org/security/2020/dsa-4645
- https://crbug.com/1031670
- https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_18.html
- https://security.gentoo.org/glsa/202003-53
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWANFIR3PYAL5RJQ4AO3ZS2DYMSF2ZGZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DDNOAGIX5D77TTHT6YPMVJ5WTXTCQEI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/