Vulnerabilities > CVE-2017-13856 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Apple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
An issue was discovered in certain Apple products. iOS before 11.2 is affected. Safari before 11.0.2 is affected. iCloud before 7.2 on Windows is affected. iTunes before 12.7.2 on Windows is affected. tvOS before 11.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
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 Misc. NASL id APPLETV_11_2.NASL description According to its banner, the version of Apple TV on the remote device is prior to 11.2. It is, therefore, affected by multiple vulnerabilities as described in the HT208327 security advisory. Note that only 4th and 5th generation models are affected by these vulnerabilities. last seen 2020-06-01 modified 2020-06-02 plugin id 105612 published 2018-01-05 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105612 title Apple TV < 11.2 Multiple Vulnerabilities NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3514-1.NASL description A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution. 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 105544 published 2018-01-04 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105544 title Ubuntu 16.04 LTS / 17.04 / 17.10 : webkit2gtk vulnerabilities (USN-3514-1) NASL family Fedora Local Security Checks NASL id FEDORA_2017-06B373D942.NASL description This update addresses the following vulnerabilities : - [CVE-2017-13866](https://cve.mitre.org/cgi-bin/cvename.c gi?name=CVE-2017-13866), [CVE-2017-13870](https://cve.mitre.org/cgi-bin/cvename.c gi?name=CVE-2017-13870), [CVE-2017-7156](https://cve.mitre.org/cgi-bin/cvename.cg i?name=CVE-2017-7156), [CVE-2017-13856](https://cve.mitre.org/cgi-bin/cvename.c gi?name=CVE-2017-13856) Additional fixes : - Make WebDriver implementation more spec compliant. - Fix a bug when trying to remove cookies before a web process is spawned. - WebKitWebDriver process no longer links to libjavascriptcoregtk. - Fix several memory leaks in GStreamer media backend. 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. last seen 2020-06-05 modified 2018-01-15 plugin id 105807 published 2018-01-15 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105807 title Fedora 27 : webkitgtk4 (2017-06b373d942) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_1CE95BC7327811E8B52700012E582166.NASL description The WebKit team reports many vulnerabilities. Please reference the CVE/URL list for details. last seen 2020-06-01 modified 2020-06-02 plugin id 108703 published 2018-03-29 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/108703 title FreeBSD : webkit2-gtk3 -- multiple vulnerabilities (1ce95bc7-3278-11e8-b527-00012e582166) (Spectre) NASL family Peer-To-Peer File Sharing NASL id ITUNES_12_7_2_BANNER.NASL description The version of Apple iTunes installed on the remote Windows host is prior to 12.7.2. It is, therefore, affected by multiple vulnerabilities in webkit as referenced in the HT208326 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 105652 published 2018-01-08 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105652 title Apple iTunes < 12.7.2 WebKit Multiple Vulnerabilities (uncredentialed check) NASL family Fedora Local Security Checks NASL id FEDORA_2017-0AD0E2F390.NASL description This update addresses the following vulnerabilities : - [CVE-2017-13866](https://cve.mitre.org/cgi-bin/cvename.c gi?name=CVE-2017-13866), [CVE-2017-13870](https://cve.mitre.org/cgi-bin/cvename.c gi?name=CVE-2017-13870), [CVE-2017-7156](https://cve.mitre.org/cgi-bin/cvename.cg i?name=CVE-2017-7156), [CVE-2017-13856](https://cve.mitre.org/cgi-bin/cvename.c gi?name=CVE-2017-13856) Additional fixes : - Make WebDriver implementation more spec compliant. - Fix a bug when trying to remove cookies before a web process is spawned. - WebKitWebDriver process no longer links to libjavascriptcoregtk. - Fix several memory leaks in GStreamer media backend. 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. last seen 2020-06-05 modified 2018-01-10 plugin id 105705 published 2018-01-10 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105705 title Fedora 26 : webkitgtk4 (2017-0ad0e2f390) NASL family MacOS X Local Security Checks NASL id MACOSX_SAFARI11_0_2.NASL description The version of Apple Safari installed on the remote macOS or Mac OS X host is prior to 11.0.2. It is, therefore, affected by multiple vulnerabilities as described in the HT208324 security advisory. last seen 2020-06-01 modified 2020-06-02 plugin id 105515 published 2018-01-03 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105515 title macOS : Apple Safari < 11.0.2 Multiple Vulnerabilities NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201801-09.NASL description The remote host is affected by the vulnerability described in GLSA-201801-09 (WebkitGTK+: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in WebkitGTK+. Please review the referenced CVE Identifiers for details. Impact : An attacker, by enticing a user to visit maliciously crafted web content, may be able to execute arbitrary code or cause memory corruption. Workaround : There are no known workarounds at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 105635 published 2018-01-08 reporter This script is Copyright (C) 2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/105635 title GLSA-201801-09 : WebkitGTK+: Multiple vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-0219-1.NASL description This update for webkit2gtk3 fixes the following issues: Update to version 2.18.5 : + Disable SharedArrayBuffers from Web API. + Reduce the precision of last seen 2020-06-01 modified 2020-06-02 plugin id 106370 published 2018-01-26 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106370 title SUSE SLED12 / SLES12 Security Update : webkit2gtk3 (SUSE-SU-2018:0219-1) (Meltdown) (Spectre) NASL family Windows NASL id ITUNES_12_7_2.NASL description The version of Apple iTunes installed on the remote Windows host is prior to 12.7.2. It is, therefore, affected by multiple vulnerabilities in webkit as referenced in the HT208326 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 105651 published 2018-01-08 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105651 title Apple iTunes < 12.7.2 WebKit Multiple Vulnerabilities (credentialed check) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-118.NASL description This update for webkit2gtk3 fixes the following issues : Update to version 2.18.5 : + Disable SharedArrayBuffers from Web API. + Reduce the precision of last seen 2020-06-05 modified 2018-02-01 plugin id 106549 published 2018-02-01 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106549 title openSUSE Security Update : webkit2gtk3 (openSUSE-2018-118) (Meltdown) (Spectre)
References
- https://support.apple.com/HT208334
- https://support.apple.com/HT208328
- https://support.apple.com/HT208327
- https://support.apple.com/HT208326
- https://support.apple.com/HT208324
- http://www.securitytracker.com/id/1040013
- http://www.securitytracker.com/id/1040012
- http://www.securityfocus.com/bid/102181
- https://security.gentoo.org/glsa/201801-09