Vulnerabilities > CVE-2017-7845 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Mozilla Firefox
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
A buffer overflow occurs when drawing and validating elements using Direct 3D 9 with the ANGLE graphics library, used for WebGL content. This is due to an incorrect value being passed within the library during checks and results in a potentially exploitable crash. Note: This attack only affects Windows operating systems. Other operating systems are unaffected. This vulnerability affects Thunderbird < 52.5.2, Firefox ESR < 52.5.2, and Firefox < 57.0.2.
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.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Windows NASL id MOZILLA_FIREFOX_52_5_2_ESR.NASL description The version of Mozilla Firefox ESR installed on the remote Windows host is prior to 52.5.2. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes. last seen 2020-06-01 modified 2020-06-02 plugin id 105212 published 2017-12-13 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105212 title Mozilla Firefox ESR < 52.5.2 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(105212); script_version("1.4"); script_cvs_date("Date: 2018/07/16 14:09:15"); script_cve_id("CVE-2017-7843", "CVE-2017-7845"); script_bugtraq_id(102112, 102115); script_xref(name:"MFSA", value:"2017-28"); script_name(english:"Mozilla Firefox ESR < 52.5.2 Multiple Vulnerabilities"); script_summary(english:"Checks the version of Firefox."); 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 Mozilla Firefox ESR installed on the remote Windows host is prior to 52.5.2. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes."); script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2017-28/"); script_set_attribute(attribute:"solution", value: "Upgrade to Mozilla Firefox ESR version 52.5.2 or later."); 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: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:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/07"); script_set_attribute(attribute:"patch_publication_date", value:"2017/12/07"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/12/13"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox_esr"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Windows"); script_copyright(english:"This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("mozilla_org_installed.nasl"); script_require_keys("Mozilla/Firefox/Version"); exit(0); } include("mozilla_version.inc"); port = get_kb_item("SMB/transport"); if (!port) port = 445; installs = get_kb_list("SMB/Mozilla/Firefox/*"); if (isnull(installs)) audit(AUDIT_NOT_INST, "Firefox"); mozilla_check_version(installs:installs, product:'firefox', esr:TRUE, fix:'52.5.2', min:'52', severity:SECURITY_HOLE);NASL family Windows NASL id MOZILLA_THUNDERBIRD_52_5_2.NASL description The version of Mozilla Thunderbird installed on the remote Windows host is prior to 52.5.2 It is, therefore, affected by multiple vulnerabilities. last seen 2020-06-01 modified 2020-06-02 plugin id 105507 published 2018-01-02 reporter This script is Copyright (C) 2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/105507 title Mozilla Thunderbird < 52.5.2 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(105507); script_version("1.4"); script_cvs_date("Date: 2018/07/17 12:00:07"); script_cve_id( "CVE-2017-7845", "CVE-2017-7846", "CVE-2017-7847", "CVE-2017-7848", "CVE-2017-7829" ); script_bugtraq_id(101832); script_name(english:"Mozilla Thunderbird < 52.5.2 Multiple Vulnerabilities"); script_summary(english:"Checks the version of Thunderbird."); script_set_attribute(attribute:"synopsis", value: "The remote Windows host contains a mail client that is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Mozilla Thunderbird installed on the remote Windows host is prior to 52.5.2 It is, therefore, affected by multiple vulnerabilities."); script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2017-30/"); script_set_attribute(attribute:"solution", value: "Upgrade to Mozilla Thunderbird version 52.5.2 or later."); 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: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:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/22"); script_set_attribute(attribute:"patch_publication_date", value:"2017/12/22"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/02"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:thunderbird"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Windows"); script_copyright(english:"This script is Copyright (C) 2018 Tenable Network Security, Inc."); script_dependencies("mozilla_org_installed.nasl"); script_require_keys("Mozilla/Thunderbird/Version"); exit(0); } include("mozilla_version.inc"); port = get_kb_item("SMB/transport"); if (!port) port = 445; installs = get_kb_list("SMB/Mozilla/Thunderbird/*"); if (isnull(installs)) audit(AUDIT_NOT_INST, "Thunderbird"); mozilla_check_version(installs:installs, product:'thunderbird', fix:'52.5.2', severity:SECURITY_HOLE);NASL family Windows NASL id MOZILLA_FIREFOX_57_0_2.NASL description The version of Mozilla Firefox installed on the remote Windows host is prior to 57.0.2. It is, therefore, affected by a flaw related to handling Direct 3D 9 drawing and validating elements with the ANGLE graphics library that could allow buffer overflows and potentially code execution. last seen 2020-06-01 modified 2020-06-02 plugin id 105213 published 2017-12-13 reporter This script is Copyright (C) 2017-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/105213 title Mozilla Firefox < 57.0.2 ANGLE Graphics Library RCE NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_6A09C80E6EC7442ABC65D72CE69FD887.NASL description Mozilla Foundation reports : CVE-2017-7845: Buffer overflow when drawing and validating elements with ANGLE library using Direct 3D 9 CVE-2017-7846: JavaScript Execution via RSS in mailbox:// origin CVE-2017-7847: Local path string can be leaked from RSS feed CVE-2017-7848: RSS Feed vulnerable to new line Injection CVE-2017-7829: Mailsploit part 1: From address with encoded null character is cut off in message header display last seen 2020-06-01 modified 2020-06-02 plugin id 105450 published 2017-12-26 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105450 title FreeBSD : mozilla -- multiple vulnerabilities (6a09c80e-6ec7-442a-bc65-d72ce69fd887)
References
- https://www.mozilla.org/security/advisories/mfsa2017-30/
- https://www.mozilla.org/security/advisories/mfsa2017-29/
- https://www.mozilla.org/security/advisories/mfsa2017-28/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1402372
- http://www.securitytracker.com/id/1040123
- http://www.securityfocus.com/bid/102115