Vulnerabilities > CVE-2017-7767 - Improper Privilege Management vulnerability in Mozilla Firefox
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
HIGH Availability impact
NONE Summary
The Mozilla Maintenance Service can be invoked by an unprivileged user to overwrite arbitrary files with junk data using the Mozilla Windows Updater, which runs with the Maintenance Service's privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR < 52.2 and Firefox < 54.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Restful Privilege Elevation Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
Nessus
NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-712.NASL description This update for Mozilla Firefox, Thunderbird, and NSS fixes the following issues : Mozilla Firefox was updated to 52.2esr (boo#1043960) MFSA 2017-16 : - CVE-2017-5472 (bmo#1365602) Use-after-free using destroyed node when regenerating trees - CVE-2017-7749 (bmo#1355039) Use-after-free during docshell reloading - CVE-2017-7750 (bmo#1356558) Use-after-free with track elements - CVE-2017-7751 (bmo#1363396) Use-after-free with content viewer listeners - CVE-2017-7752 (bmo#1359547) Use-after-free with IME input - CVE-2017-7754 (bmo#1357090) Out-of-bounds read in WebGL with ImageInfo object - CVE-2017-7755 (bmo#1361326) Privilege escalation through Firefox Installer with same directory DLL files (Windows only) - CVE-2017-7756 (bmo#1366595) Use-after-free and use-after-scope logging XHR header errors - CVE-2017-7757 (bmo#1356824) Use-after-free in IndexedDB - CVE-2017-7778, CVE-2017-7778, CVE-2017-7771, CVE-2017-7772, CVE-2017-7773, CVE-2017-7774, CVE-2017-7775, CVE-2017-7776, CVE-2017-7777 Vulnerabilities in the Graphite 2 library - CVE-2017-7758 (bmo#1368490) Out-of-bounds read in Opus encoder - CVE-2017-7760 (bmo#1348645) File manipulation and privilege escalation via callback parameter in Mozilla Windows Updater and Maintenance Service (Windows only) - CVE-2017-7761 (bmo#1215648) File deletion and privilege escalation through Mozilla Maintenance Service helper.exe application (Windows only) - CVE-2017-7764 (bmo#1364283) Domain spoofing with combination of Canadian Syllabics and other unicode blocks - CVE-2017-7765 (bmo#1273265) Mark of the Web bypass when saving executable files (Windows only) - CVE-2017-7766 (bmo#1342742) File execution and privilege escalation through updater.ini, Mozilla Windows Updater, and Mozilla Maintenance Service (Windows only) - CVE-2017-7767 (bmo#1336964) Privilege escalation and arbitrary file overwrites through Mozilla Windows Updater and Mozilla Maintenance Service (Windows only) - CVE-2017-7768 (bmo#1336979) 32 byte arbitrary file read through Mozilla Maintenance Service (Windows only) - CVE-2017-5470 Memory safety bugs fixed in Firefox 54 and Firefox ESR 52.2 - remove -fno-inline-small-functions and explicitely optimize with -O2 for openSUSE > 13.2/Leap 42 to work with gcc7 (boo#1040105) Mozilla NSS was updated to NSS 3.28.5 - Implemented domain name constraints for CA: TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1. (bmo#1350859) - March 2017 batch of root CA changes (bmo#1350859) (version 2.14) CA certificates removed: O = Japanese Government, OU = ApplicationCA CN = WellsSecure Public Root Certificate Authority CN = TURKTRUST Elektronik Sertifika Hizmet H6 CN = Microsec e-Szigno Root CA certificates added: CN = D-TRUST Root CA 3 2013 CN = TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 java-1_8_0-openjdk was rebuild against NSS 3.28.5 to satisfy a runtime dependency. last seen 2020-06-05 modified 2017-06-20 plugin id 100885 published 2017-06-20 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100885 title openSUSE Security Update : Mozilla based packages (openSUSE-2017-712) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_6CEC1B0ADA15467D86911DEA392D4C8D.NASL description Mozilla Foundation reports : Please reference CVE/URL list for details last seen 2020-06-01 modified 2020-06-02 plugin id 100775 published 2017-06-14 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100775 title FreeBSD : mozilla -- multiple vulnerabilities (6cec1b0a-da15-467d-8691-1dea392d4c8d) NASL family Windows NASL id MOZILLA_FIREFOX_52_2ESR.NASL description The version of Mozilla Firefox ESR installed on the remote Windows host is prior to 52.2. It is, therefore, affected by multiple vulnerabilities : - Multiple memory corruption issues exist that allow an unauthenticated, remote attacker to execute arbitrary code by convincing a user to visit a specially crafted website. (CVE-2017-5470) - A use-after-free error exists in the EndUpdate() function in nsCSSFrameConstructor.cpp that is triggered when reconstructing trees during regeneration of CSS layouts. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-5472) - A use-after-free error exists in the Reload() function in nsDocShell.cpp that is triggered when using an incorrect URL during the reload of a docshell. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7749) - A use-after-free error exists in the Hide() function in nsDocumentViewer.cpp that is triggered when handling track elements. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7750) - A use-after-free error exists in the nsDocumentViewer class in nsDocumentViewer.cpp that is triggered when handling content viewer listeners. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7751) - A use-after-free error exists that is triggered when handling events while specific user interaction occurs with the input method editor (IME). An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7752) - An out-of-bounds read error exists in the IsComplete() function in WebGLTexture.cpp that is triggered when handling textures. An unauthenticated, remote attacker can exploit this to disclose memory contents. (CVE-2017-7754) - A privilege escalation vulnerability exists due to improper loading of dynamic-link library (DLL) files. A local attacker can exploit this, via a specially crafted DLL file in the installation path, to inject and execute arbitrary code. (CVE-2017-7755) - A use-after-free error exists in the SetRequestHead() function in XMLHttpRequestMainThread.cpp that is triggered when logging XML HTTP Requests (XHR). An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7756) - A use-after-free error exists in ActorsParent.cpp due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7757) - An out-of-bounds read error exists in the AppendAudioSegment() function in TrackEncoder.cpp that is triggered when the number of channels in an audio stream changes while the Opus encoder is in use. An unauthenticated, remote attacker can exploit this to disclose sensitive information. (CVE-2017-7758) - A flaw exists in the NS_main() function in updater.cpp due to improper validation of input when handling callback file path parameters. A local attacker can exploit this to manipulate files in the installation directory. (CVE-2017-7760) - A flaw exists in the Maintenance Service helper.exe application that is triggered as permissions for a temporary directory are set to writable by non-privileged users. A local attacker can exploit this to delete arbitrary files on the system. (CVE-2017-7761) - A flaw exists in the isLabelSafe() function in nsIDNService.cpp that is triggered when handling characters from different unicode blocks. An unauthenticated, remote attacker can exploit this, via a specially crafted IDN domain, to spoof a valid URL and conduct phishing attacks. (CVE-2017-7764) - A flaw exists that is triggered due to improper parsing of long filenames when handling downloaded files. An unauthenticated, remote attacker can exploit this to cause a file to be downloaded without the last seen 2020-06-01 modified 2020-06-02 plugin id 100809 published 2017-06-15 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100809 title Mozilla Firefox ESR < 52.2 Multiple Vulnerabilities NASL family Windows NASL id MOZILLA_FIREFOX_54_0.NASL description The version of Mozilla Firefox installed on the remote Windows host is prior to 54. It is, therefore, affected by multiple vulnerabilities : - Multiple memory corruption issues exist that allow an unauthenticated, remote attacker to execute arbitrary code by convincing a user to visit a specially crafted website. (CVE-2017-5470, CVE-2017-5471) - A use-after-free error exists in the EndUpdate() function in nsCSSFrameConstructor.cpp that is triggered when reconstructing trees during regeneration of CSS layouts. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-5472) - A use-after-free error exists in the Reload() function in nsDocShell.cpp that is triggered when using an incorrect URL during the reload of a docshell. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7749) - A use-after-free error exists in the Hide() function in nsDocumentViewer.cpp that is triggered when handling track elements. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7750) - A use-after-free error exists in the nsDocumentViewer class in nsDocumentViewer.cpp that is triggered when handling content viewer listeners. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7751) - A use-after-free error exists that is triggered when handling events while specific user interaction occurs with the input method editor (IME). An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7752) - An out-of-bounds read error exists in the IsComplete() function in WebGLTexture.cpp that is triggered when handling textures. An unauthenticated, remote attacker can exploit this to disclose memory contents. (CVE-2017-7754) - A privilege escalation vulnerability exists due to improper loading of dynamic-link library (DLL) files. A local attacker can exploit this, via a specially crafted DLL file in the installation path, to inject and execute arbitrary code. (CVE-2017-7755) - A use-after-free error exists in the SetRequestHead() function in XMLHttpRequestMainThread.cpp that is triggered when logging XML HTTP Requests (XHR). An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7756) - A use-after-free error exists in ActorsParent.cpp due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-7757) - An out-of-bounds read error exists in the AppendAudioSegment() function in TrackEncoder.cpp that is triggered when the number of channels in an audio stream changes while the Opus encoder is in use. An unauthenticated, remote attacker can exploit this to disclose sensitive information. (CVE-2017-7758) - A flaw exists in the NS_main() function in updater.cpp due to improper validation of input when handling callback file path parameters. A local attacker can exploit this to manipulate files in the installation directory. (CVE-2017-7760) - A flaw exists in the Maintenance Service helper.exe application that is triggered as permissions for a temporary directory are set to writable by non-privileged users. A local attacker can exploit this to delete arbitrary files on the system. (CVE-2017-7761) - A flaw exists that is triggered when displaying URLs including authentication sections in reader mode. An unauthenticated, remote attacker can exploit this, via a specially crafted URL, to spoof domains in the address bar. (CVE-2017-7762) - A flaw exists in the isLabelSafe() function in nsIDNService.cpp that is triggered when handling characters from different unicode blocks. An unauthenticated, remote attacker can exploit this, via a specially crafted IDN domain, to spoof a valid URL and conduct phishing attacks. (CVE-2017-7764) - A flaw exists that is triggered due to improper parsing of long filenames when handling downloaded files. An unauthenticated, remote attacker can exploit this to cause a file to be downloaded without the last seen 2020-06-01 modified 2020-06-02 plugin id 100810 published 2017-06-15 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100810 title Mozilla Firefox < 54 Multiple Vulnerabilities
References
- http://www.securityfocus.com/bid/99057
- http://www.securityfocus.com/bid/99057
- http://www.securitytracker.com/id/1038689
- http://www.securitytracker.com/id/1038689
- https://bugzilla.mozilla.org/show_bug.cgi?id=1336964
- https://bugzilla.mozilla.org/show_bug.cgi?id=1336964
- https://www.mozilla.org/security/advisories/mfsa2017-15/
- https://www.mozilla.org/security/advisories/mfsa2017-15/
- https://www.mozilla.org/security/advisories/mfsa2017-16/
- https://www.mozilla.org/security/advisories/mfsa2017-16/