Vulnerabilities > CVE-2019-3820 - Improper Authentication vulnerability in multiple products
Attack vector
PHYSICAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
LOW Integrity impact
LOW Availability impact
LOW Summary
It was discovered that the gnome-shell lock screen since version 3.15.91 did not properly restrict all contextual actions. An attacker with physical access to a locked workstation could invoke certain keyboard shortcuts, and potentially other actions.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Authentication Abuse An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker. This attack may exploit assumptions made by the target's authentication procedures, such as assumptions regarding trust relationships or assumptions regarding the generation of secret values. This attack differs from Authentication Bypass attacks in that Authentication Abuse allows the attacker to be certified as a valid user through illegitimate means, while Authentication Bypass allows the user to access protected material without ever being certified as an authenticated user. This attack does not rely on prior sessions established by successfully authenticating users, as relied upon for the "Exploitation of Session Variables, Resource IDs and other Trusted Credentials" attack patterns.
- Exploiting Trust in Client (aka Make the Client Invisible) An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
- Utilizing REST's Trust in the System Resource to Register Man in the Middle This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to place man in the middle once SSL is terminated. Rest applications premise is that they leverage existing infrastructure to deliver web services functionality. An example of this is a Rest application that uses HTTP Get methods and receives a HTTP response with an XML document. These Rest style web services are deployed on existing infrastructure such as Apache and IIS web servers with no SOAP stack required. Unfortunately from a security standpoint, there frequently is no interoperable identity security mechanism deployed, so Rest developers often fall back to SSL to deliver security. In large data centers, SSL is typically terminated at the edge of the network - at the firewall, load balancer, or router. Once the SSL is terminated the HTTP request is in the clear (unless developers have hashed or encrypted the values, but this is rare). The attacker can utilize a sniffer such as Wireshark to snapshot the credentials, such as username and password that are passed in the clear once SSL is terminated. Once the attacker gathers these credentials, they can submit requests to the web service provider just as authorized user do. There is not typically an authentication on the client side, beyond what is passed in the request itself so once this is compromised, then this is generally sufficient to compromise the service's authentication scheme.
- Man in the Middle Attack This type of attack targets the communication between two components (typically client and server). The attacker places himself in the communication channel between the two components. Whenever one component attempts to communicate with the other (data flow, authentication challenges, etc.), the data first goes to the attacker, who has the opportunity to observe or alter it, and it is then passed on to the other component as if it was never intercepted. This interposition is transparent leaving the two compromised components unaware of the potential corruption or leakage of their communications. The potential for Man-in-the-Middle attacks yields an implicit lack of trust in communication or identify between two components.
Nessus
NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-1459-1.NASL description This update for gnome-shell fixes the following issues : Security issue fixed : CVE-2019-3820: Fixed a partial lock screen bypass (bsc#1124493). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 125849 published 2019-06-12 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125849 title SUSE SLED15 / SLES15 Security Update : gnome-shell (SUSE-SU-2019:1459-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2019:1459-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(125849); script_version("1.3"); script_cvs_date("Date: 2020/01/10"); script_cve_id("CVE-2019-3820"); script_name(english:"SUSE SLED15 / SLES15 Security Update : gnome-shell (SUSE-SU-2019:1459-1)"); script_summary(english:"Checks rpm output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for gnome-shell fixes the following issues : Security issue fixed : CVE-2019-3820: Fixed a partial lock screen bypass (bsc#1124493). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. 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://bugzilla.suse.com/show_bug.cgi?id=1124493" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-3820/" ); # https://www.suse.com/support/update/announcement/2019/suse-su-20191459-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?c45430d2" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Workstation Extension 15-SP1:zypper in -t patch SUSE-SLE-Product-WE-15-SP1-2019-1459=1 SUSE Linux Enterprise Workstation Extension 15:zypper in -t patch SUSE-SLE-Product-WE-15-2019-1459=1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1:zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-1459=1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2019-1459=1 SUSE Linux Enterprise Module for Desktop Applications 15-SP1:zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP1-2019-1459=1 SUSE Linux Enterprise Module for Desktop Applications 15:zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-2019-1459=1" ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/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:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"); 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script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/12"); script_set_attribute(attribute:"generated_plugin", value:"current"); 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:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release"); if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "SUSE " + os_ver); 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script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:osinfo-db"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:shared-mime-info"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:shared-mime-info-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:tracker"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:tracker-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:tracker-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:tracker-docs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:tracker-needle"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:tracker-preferences"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xchat"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xchat-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xchat-tcl"); script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/06"); script_set_attribute(attribute:"patch_publication_date", value:"2020/04/07"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/21"); 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:"Scientific Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.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) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux"); os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux"); os_ver = os_ver[1]; if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + 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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu); flag = 0; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"LibRaw-0.19.4-1.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"LibRaw-debuginfo-0.19.4-1.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"LibRaw-devel-0.19.4-1.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"LibRaw-static-0.19.4-1.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"accountsservice-0.6.50-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"accountsservice-debuginfo-0.6.50-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"accountsservice-devel-0.6.50-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"accountsservice-libs-0.6.50-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"colord-1.3.4-2.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"colord-debuginfo-1.3.4-2.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"colord-devel-1.3.4-2.el7")) flag++; if (rpm_check(release:"SL7", reference:"colord-devel-docs-1.3.4-2.el7")) flag++; if (rpm_check(release:"SL7", reference:"colord-extra-profiles-1.3.4-2.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"colord-libs-1.3.4-2.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"control-center-3.28.1-6.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"control-center-debuginfo-3.28.1-6.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"control-center-filesystem-3.28.1-6.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gdm-3.28.2-22.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gdm-debuginfo-3.28.2-22.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gdm-devel-3.28.2-22.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gdm-pam-extensions-devel-3.28.2-22.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-classic-session-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-classic-session-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-online-accounts-3.28.2-1.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-online-accounts-debuginfo-3.28.2-1.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-online-accounts-devel-3.28.2-1.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-settings-daemon-3.28.1-8.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-settings-daemon-debuginfo-3.28.1-8.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-settings-daemon-devel-3.28.1-8.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-3.28.3-24.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-debuginfo-3.28.3-24.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-alternate-tab-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-alternate-tab-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-apps-menu-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-apps-menu-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-auto-move-windows-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-common-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-common-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-dash-to-dock-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-disable-screenshield-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-drive-menu-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-extra-osk-keys-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-horizontal-workspaces-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-horizontal-workspaces-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-launch-new-instance-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-launch-new-instance-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-native-window-placement-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-no-hot-corner-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-panel-favorites-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-places-menu-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-places-menu-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-screenshot-window-sizer-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-systemMonitor-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-top-icons-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-top-icons-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-updates-dialog-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-user-theme-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-user-theme-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-window-grouper-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-window-list-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-shell-extension-window-list-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-windowsNavigator-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-shell-extension-workspace-indicator-3.28.1-11.el7")) flag++; if (rpm_check(release:"SL7", reference:"gnome-tweak-tool-3.28.1-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gnome-tweak-tool-3.28.1-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gsettings-desktop-schemas-3.28.0-3.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gsettings-desktop-schemas-devel-3.28.0-3.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gtk-update-icon-cache-3.22.30-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gtk3-3.22.30-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gtk3-debuginfo-3.22.30-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gtk3-devel-3.22.30-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gtk3-devel-docs-3.22.30-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gtk3-immodule-xim-3.22.30-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gtk3-immodules-3.22.30-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"gtk3-tests-3.22.30-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libcanberra-0.30-9.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libcanberra-debuginfo-0.30-9.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libcanberra-devel-0.30-9.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libcanberra-gtk2-0.30-9.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libcanberra-gtk3-0.30-9.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libgweather-3.28.2-3.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libgweather-debuginfo-3.28.2-3.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libgweather-devel-3.28.2-3.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"mutter-3.28.3-20.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"mutter-debuginfo-3.28.3-20.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"mutter-devel-3.28.3-20.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"nautilus-3.26.3.1-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"nautilus-debuginfo-3.26.3.1-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"nautilus-devel-3.26.3.1-7.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"nautilus-extensions-3.26.3.1-7.el7")) flag++; if (rpm_check(release:"SL7", reference:"osinfo-db-20190805-2.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"osinfo-db-20190805-2.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"shared-mime-info-1.8-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"shared-mime-info-debuginfo-1.8-5.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"tracker-1.10.5-8.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"tracker-debuginfo-1.10.5-8.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"tracker-devel-1.10.5-8.el7")) flag++; if (rpm_check(release:"SL7", reference:"tracker-docs-1.10.5-8.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"tracker-needle-1.10.5-8.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"tracker-preferences-1.10.5-8.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xchat-2.8.8-25.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xchat-debuginfo-2.8.8-25.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xchat-tcl-2.8.8-25.el7")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, 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, "LibRaw / LibRaw-debuginfo / LibRaw-devel / LibRaw-static / etc"); }NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3966-1.NASL description It was discovered that the GNOME Shell incorrectly handled certain keyboard inputs. An attacker could possibly use this issue to invoke keyboard shortcuts, and potentially other actions while the workstation was locked. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 124677 published 2019-05-07 reporter Ubuntu Security Notice (C) 2019-2020 Canonical, Inc. / NASL script (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124677 title Ubuntu 18.04 LTS / 18.10 : gnome-shell vulnerability (USN-3966-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Ubuntu Security Notice USN-3966-1. The text # itself is copyright (C) Canonical, Inc. See # <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered # trademark of Canonical, Inc. # include("compat.inc"); if (description) { script_id(124677); script_version("1.3"); script_cvs_date("Date: 2020/01/21"); script_cve_id("CVE-2019-3820"); script_xref(name:"USN", value:"3966-1"); script_name(english:"Ubuntu 18.04 LTS / 18.10 : gnome-shell vulnerability (USN-3966-1)"); script_summary(english:"Checks dpkg output for updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Ubuntu host is missing a security-related patch." ); script_set_attribute( attribute:"description", value: "It was discovered that the GNOME Shell incorrectly handled certain keyboard inputs. An attacker could possibly use this issue to invoke keyboard shortcuts, and potentially other actions while the workstation was locked. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. 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://usn.ubuntu.com/3966-1/" ); script_set_attribute( attribute:"solution", value:"Update the affected gnome-shell package." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/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:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"); 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:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:gnome-shell"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.10"); script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/06"); script_set_attribute(attribute:"patch_publication_date", value:"2019/05/06"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/07"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"Ubuntu Security Notice (C) 2019-2020 Canonical, Inc. / NASL script (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Ubuntu Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("ubuntu.inc"); include("misc_func.inc"); if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/Ubuntu/release"); if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu"); release = chomp(release); if (! preg(pattern:"^(18\.04|18\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 18.04 / 18.10", "Ubuntu " + release); if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu); flag = 0; if (ubuntu_check(osver:"18.04", pkgname:"gnome-shell", pkgver:"3.28.3+git20190124-0ubuntu18.04.2")) flag++; if (ubuntu_check(osver:"18.10", pkgname:"gnome-shell", pkgver:"3.30.2-0ubuntu1.18.10.2")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, extra : ubuntu_report_get() ); exit(0); } else { tested = ubuntu_pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "gnome-shell"); }NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-1529.NASL description This update for gnome-shell fixes the following issues : Security issue fixed : - CVE-2019-3820: Fixed a partial lock screen bypass (bsc#1124493). Fixed bugs : - Remove sessionList of endSessionDialog for security reasons (jsc#SLE-6660). This update was imported from the SUSE:SLE-12-SP2:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 125796 published 2019-06-10 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125796 title openSUSE Security Update : gnome-shell (openSUSE-2019-1529) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2019-1529. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(125796); script_version("1.2"); script_cvs_date("Date: 2020/01/10"); script_cve_id("CVE-2019-3820"); script_name(english:"openSUSE Security Update : gnome-shell (openSUSE-2019-1529)"); script_summary(english:"Check for the openSUSE-2019-1529 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update for gnome-shell fixes the following issues : Security issue fixed : - CVE-2019-3820: Fixed a partial lock screen bypass (bsc#1124493). Fixed bugs : - Remove sessionList of endSessionDialog for security reasons (jsc#SLE-6660). This update was imported from the SUSE:SLE-12-SP2:Update update project." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1124493" ); script_set_attribute( attribute:"solution", value:"Update the affected gnome-shell packages." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/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:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"); 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:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell-browser-plugin"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell-browser-plugin-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell-calendar"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell-calendar-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gnome-shell-lang"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.3"); script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/06"); script_set_attribute(attribute:"patch_publication_date", value:"2019/06/07"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/10"); script_set_attribute(attribute:"generated_plugin", value:"current"); 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:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); 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/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE42\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.3", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(x86_64)$") audit(AUDIT_ARCH_NOT, "x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-3.20.4-22.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-browser-plugin-3.20.4-22.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-browser-plugin-debuginfo-3.20.4-22.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-calendar-3.20.4-22.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-calendar-debuginfo-3.20.4-22.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-debuginfo-3.20.4-22.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-debugsource-3.20.4-22.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-devel-3.20.4-22.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"gnome-shell-lang-3.20.4-22.1") ) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "gnome-shell / gnome-shell-browser-plugin / etc"); }NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-1582.NASL description This update for gnome-shell fixes the following issues : Security issue fixed : - CVE-2019-3820: Fixed a partial lock screen bypass (bsc#1124493). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 126042 published 2019-06-19 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/126042 title openSUSE Security Update : gnome-shell (openSUSE-2019-1582) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-1021.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1021 advisory. - gnome-shell: partial lock screen bypass (CVE-2019-3820) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-06 modified 2020-04-10 plugin id 135318 published 2020-04-10 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135318 title CentOS 7 : LibRaw / accountsservice / colord / control-center / gdm / gnome-online-accounts / etc (CESA-2020:1021) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1021.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1021 advisory. - gnome-shell: partial lock screen bypass (CVE-2019-3820) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-03-31 plugin id 135044 published 2020-03-31 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135044 title RHEL 7 : GNOME (RHSA-2020:1021) NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-1390-1.NASL description This update for gnome-shell fixes the following issues : Security issue fixed : CVE-2019-3820: Fixed a partial lock screen bypass (bsc#1124493). Fixed bugs: Remove sessionList of endSessionDialog for security reasons (jsc#SLE-6660). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 125674 published 2019-06-03 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125674 title SUSE SLED12 / SLES12 Security Update : gnome-shell (SUSE-SU-2019:1390-1)
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References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00049.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00049.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3820
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3820
- https://gitlab.gnome.org/GNOME/gnome-shell/issues/851
- https://gitlab.gnome.org/GNOME/gnome-shell/issues/851
- https://usn.ubuntu.com/3966-1/
- https://usn.ubuntu.com/3966-1/