Vulnerabilities > CVE-2018-6138 - Improper Input Validation vulnerability in Google Chrome
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
NONE Summary
Insufficient policy enforcement in Extensions API in Google Chrome prior to 67.0.3396.62 allowed an attacker who convinced a user to install a malicious extension to bypass navigation restrictions 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 SuSE Local Security Checks NASL id OPENSUSE-2018-546.NASL description This update for chromium to version 66.0.3359.181 fixes the following issues : The following security issues were fixed (boo#1095163) : - CVE-2018-6123: Use after free in Blink. - CVE-2018-6124: Type confusion in Blink. - CVE-2018-6125: Overly permissive policy in WebUSB. - CVE-2018-6126: Heap buffer overflow in Skia. - CVE-2018-6127: Use after free in indexedDB. - CVE-2018-6128: uXSS in Chrome on iOS. - CVE-2018-6129: Out of bounds memory access in WebRTC. - CVE-2018-6130: Out of bounds memory access in WebRTC. - CVE-2018-6131: Incorrect mutability protection in WebAssembly. - CVE-2018-6132: Use of uninitialized memory in WebRTC. - CVE-2018-6133: URL spoof in Omnibox. - CVE-2018-6134: Referrer Policy bypass in Blink. - CVE-2018-6135: UI spoofing in Blink. - CVE-2018-6136: Out of bounds memory access in V8. - CVE-2018-6137: Leak of visited status of page in Blink. - CVE-2018-6138: Overly permissive policy in Extensions. - CVE-2018-6139: Restrictions bypass in the debugger extension API. - CVE-2018-6140: Restrictions bypass in the debugger extension API. - CVE-2018-6141: Heap buffer overflow in Skia. - CVE-2018-6142: Out of bounds memory access in V8. - CVE-2018-6143: Out of bounds memory access in V8. - CVE-2018-6144: Out of bounds memory access in PDFium. - CVE-2018-6145: Incorrect escaping of MathML in Blink. - CVE-2018-6147: Password fields not taking advantage of OS protections in Views. Additional changes : - Autoplay: Force enable on desktop for Web Audio This update enables the last seen 2020-06-05 modified 2018-06-01 plugin id 110275 published 2018-06-01 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/110275 title openSUSE Security Update : chromium (openSUSE-2018-546) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-759.NASL description This update for Chromium to version 67.0.3396.99 fixes multiple issues. Security issues fixed (bsc#1095163) : - CVE-2018-6123: Use after free in Blink - CVE-2018-6124: Type confusion in Blink - CVE-2018-6125: Overly permissive policy in WebUSB - CVE-2018-6126: Heap buffer overflow in Skia - CVE-2018-6127: Use after free in indexedDB - CVE-2018-6129: Out of bounds memory access in WebRTC - CVE-2018-6130: Out of bounds memory access in WebRTC - CVE-2018-6131: Incorrect mutability protection in WebAssembly - CVE-2018-6132: Use of uninitialized memory in WebRTC - CVE-2018-6133: URL spoof in Omnibox - CVE-2018-6134: Referrer Policy bypass in Blink - CVE-2018-6135: UI spoofing in Blink - CVE-2018-6136: Out of bounds memory access in V8 - CVE-2018-6137: Leak of visited status of page in Blink - CVE-2018-6138: Overly permissive policy in Extensions - CVE-2018-6139: Restrictions bypass in the debugger extension API - CVE-2018-6140: Restrictions bypass in the debugger extension API - CVE-2018-6141: Heap buffer overflow in Skia - CVE-2018-6142: Out of bounds memory access in V8 - CVE-2018-6143: Out of bounds memory access in V8 - CVE-2018-6144: Out of bounds memory access in PDFium - CVE-2018-6145: Incorrect escaping of MathML in Blink - CVE-2018-6147: Password fields not taking advantage of OS protections in Views - CVE-2018-6148: Incorrect handling of CSP header (boo#1096508) - CVE-2018-6149: Out of bounds write in V8 (boo#1097452) The following tracked packaging changes are included : - Require ffmpeg >= 4.0 (boo#1095545) last seen 2020-06-05 modified 2018-07-26 plugin id 111345 published 2018-07-26 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/111345 title openSUSE Security Update : Chromium (openSUSE-2018-759) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4237.NASL description Several vulnerabilities have been discovered in the chromium web browser. - CVE-2018-6118 Ned Williamson discovered a use-after-free issue. - CVE-2018-6120 Zhou Aiting discovered a buffer overflow issue in the pdfium library. - CVE-2018-6121 It was discovered that malicious extensions could escalate privileges. - CVE-2018-6122 A type confusion issue was discovered in the v8 JavaScript library. - CVE-2018-6123 Looben Yang discovered a use-after-free issue. - CVE-2018-6124 Guang Gong discovered a type confusion issue. - CVE-2018-6125 Yubico discovered that the WebUSB implementation was too permissive. - CVE-2018-6126 Ivan Fratric discovered a buffer overflow issue in the skia library. - CVE-2018-6127 Looben Yang discovered a use-after-free issue. - CVE-2018-6129 Natalie Silvanovich discovered an out-of-bounds read issue in WebRTC. - CVE-2018-6130 Natalie Silvanovich discovered an out-of-bounds read issue in WebRTC. - CVE-2018-6131 Natalie Silvanovich discovered an error in WebAssembly. - CVE-2018-6132 Ronald E. Crane discovered an uninitialized memory issue. - CVE-2018-6133 Khalil Zhani discovered a URL spoofing issue. - CVE-2018-6134 Jun Kokatsu discovered a way to bypass the Referrer Policy. - CVE-2018-6135 Jasper Rebane discovered a user interface spoofing issue. - CVE-2018-6136 Peter Wong discovered an out-of-bounds read issue in the v8 JavaScript library. - CVE-2018-6137 Michael Smith discovered an information leak. - CVE-2018-6138 Francois Lajeunesse-Robert discovered that the extensions policy was too permissive. - CVE-2018-6139 Rob Wu discovered a way to bypass restrictions in the debugger extension. - CVE-2018-6140 Rob Wu discovered a way to bypass restrictions in the debugger extension. - CVE-2018-6141 Yangkang discovered a buffer overflow issue in the skia library. - CVE-2018-6142 Choongwoo Han discovered an out-of-bounds read in the v8 JavaScript library. - CVE-2018-6143 Guang Gong discovered an out-of-bounds read in the v8 JavaScript library. - CVE-2018-6144 pdknsk discovered an out-of-bounds read in the pdfium library. - CVE-2018-6145 Masato Kinugawa discovered an error in the MathML implementation. - CVE-2018-6147 Michail Pishchagin discovered an error in password entry fields. - CVE-2018-6148 Michal Bentkowski discovered that the Content Security Policy header was handled incorrectly. - CVE-2018-6149 Yu Zhou and Jundong Xie discovered an out-of-bounds write issue in the v8 JavaScript library. last seen 2020-06-01 modified 2020-06-02 plugin id 110820 published 2018-07-02 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/110820 title Debian DSA-4237-1 : chromium-browser - security update NASL family Fedora Local Security Checks NASL id FEDORA_2018-09B59B0227.NASL description Update to Chromium 67. Security fix for CVE-2018-6123 CVE-2018-6124 CVE-2018-6125 CVE-2018-6126 CVE-2018-6127 CVE-2018-6128 CVE-2018-6129 CVE-2018-6130 CVE-2018-6131 CVE-2018-6132 CVE-2018-6133 CVE-2018-6134 CVE-2018-6135 CVE-2018-6136 CVE-2018-6137 CVE-2018-6148 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 2018-06-21 plugin id 110625 published 2018-06-21 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/110625 title Fedora 27 : chromium (2018-09b59b0227) NASL family Fedora Local Security Checks NASL id FEDORA_2018-7C80AAEF26.NASL description Update to Chromium 67. Security fix for CVE-2018-6123 CVE-2018-6124 CVE-2018-6125 CVE-2018-6126 CVE-2018-6127 CVE-2018-6128 CVE-2018-6129 CVE-2018-6130 CVE-2018-6131 CVE-2018-6132 CVE-2018-6133 CVE-2018-6134 CVE-2018-6135 CVE-2018-6136 CVE-2018-6137 CVE-2018-6148 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 2019-01-03 plugin id 120558 published 2019-01-03 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/120558 title Fedora 28 : chromium (2018-7c80aaef26) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-548.NASL description This update for Chromium to version 67.0.3396.99 fixes multiple issues. Security issues fixed (bsc#1095163) : - CVE-2018-6123: Use after free in Blink - CVE-2018-6124: Type confusion in Blink - CVE-2018-6125: Overly permissive policy in WebUSB - CVE-2018-6126: Heap buffer overflow in Skia - CVE-2018-6127: Use after free in indexedDB - CVE-2018-6129: Out of bounds memory access in WebRTC - CVE-2018-6130: Out of bounds memory access in WebRTC - CVE-2018-6131: Incorrect mutability protection in WebAssembly - CVE-2018-6132: Use of uninitialized memory in WebRTC - CVE-2018-6133: URL spoof in Omnibox - CVE-2018-6134: Referrer Policy bypass in Blink - CVE-2018-6135: UI spoofing in Blink - CVE-2018-6136: Out of bounds memory access in V8 - CVE-2018-6137: Leak of visited status of page in Blink - CVE-2018-6138: Overly permissive policy in Extensions - CVE-2018-6139: Restrictions bypass in the debugger extension API - CVE-2018-6140: Restrictions bypass in the debugger extension API - CVE-2018-6141: Heap buffer overflow in Skia - CVE-2018-6142: Out of bounds memory access in V8 - CVE-2018-6143: Out of bounds memory access in V8 - CVE-2018-6144: Out of bounds memory access in PDFium - CVE-2018-6145: Incorrect escaping of MathML in Blink - CVE-2018-6147: Password fields not taking advantage of OS protections in Views - CVE-2018-6148: Incorrect handling of CSP header (boo#1096508) - CVE-2018-6149: Out of bounds write in V8 (boo#1097452) The following tracked packaging changes are included : - Require ffmpeg >= 4.0 (boo#1095545) last seen 2020-05-31 modified 2019-03-27 plugin id 123234 published 2019-03-27 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/123234 title openSUSE Security Update : Chromium (openSUSE-2019-548) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_427B0F58644C11E89E1BE8E0B747A45A.NASL description Google Chrome Releases reports : 34 security fixes in this release, including : - [835639] High CVE-2018-6123: Use after free in Blink. Reported by Looben Yang on 2018-04-22 - [840320] High CVE-2018-6124: Type confusion in Blink. Reported by Guang Gong of Alpha Team, Qihoo 360 on 2018-05-07 - [818592] High CVE-2018-6125: Overly permissive policy in WebUSB. Reported by Yubico, Inc on 2018-03-05 - [844457] High CVE-2018-6126: Heap buffer overflow in Skia. Reported by Ivan Fratric of Google Project Zero on 2018-05-18 - [842990] High CVE-2018-6127: Use after free in indexedDB. Reported by Looben Yang on 2018-05-15 - [841105] High CVE-2018-6128: uXSS in Chrome on iOS. Reported by Tomasz Bojarski on 2018-05-09 - [838672] High CVE-2018-6129: Out of bounds memory access in WebRTC. Reported by Natalie Silvanovich of Google Project Zero on 2018-05-01 - [838402] High CVE-2018-6130: Out of bounds memory access in WebRTC. Reported by Natalie Silvanovich of Google Project Zero on 2018-04-30 - [826434] High CVE-2018-6131: Incorrect mutability protection in WebAssembly. Reported by Natalie Silvanovich of Google Project Zero on 2018-03-27 - [839960] Medium CVE-2018-6132: Use of uninitialized memory in WebRTC. Reported by Ronald E. Crane on 2018-05-04 - [817247] Medium CVE-2018-6133: URL spoof in Omnibox. Reported by Khalil Zhani on 2018-02-28 - [797465] Medium CVE-2018-6134: Referrer Policy bypass in Blink. Reported by Jun Kokatsu (@shhnjk) on 2017-12-23 - [823353] Medium CVE-2018-6135: UI spoofing in Blink. Reported by Jasper Rebane on 2018-03-19 - [831943] Medium CVE-2018-6136: Out of bounds memory access in V8. Reported by Peter Wong on 2018-04-12 - [835589] Medium CVE-2018-6137: Leak of visited status of page in Blink. Reported by Michael Smith (spinda.net) on 2018-04-21 - [810220] Medium CVE-2018-6138: Overly permissive policy in Extensions. Reported by Francois Lajeunesse-Robert on 2018-02-08 - [805224] Medium CVE-2018-6139: Restrictions bypass in the debugger extension API. Reported by Rob Wu on 2018-01-24 - [798222] Medium CVE-2018-6140: Restrictions bypass in the debugger extension API. Reported by Rob Wu on 2018-01-01 - [796107] Medium CVE-2018-6141: Heap buffer overflow in Skia. Reported by Yangkang (@dnpushme) and Wanglu of Qihoo360 Qex Team on 2017-12-19 - [837939] Medium CVE-2018-6142: Out of bounds memory access in V8. Reported by Choongwoo Han of Naver Corporation on 2018-04-28 - [843022] Medium CVE-2018-6143: Out of bounds memory access in V8. Reported by Guang Gong of Alpha Team, Qihoo 360 on 2018-05-15 - [828049] Low CVE-2018-6144: Out of bounds memory access in PDFium. Reported by pdknsk on 2018-04-02 - [805924] Low CVE-2018-6145: Incorrect escaping of MathML in Blink. Reported by Masato Kinugawa on 2018-01-25 - [818133] Low CVE-2018-6147: Password fields not taking advantage of OS protections in Views. Reported by Michail Pishchagin (Yandex) on 2018-03-02 - [847542] Various fixes from internal audits, fuzzing and other initiatives last seen 2020-06-01 modified 2020-06-02 plugin id 110254 published 2018-05-31 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/110254 title FreeBSD : chromium -- multiple vulnerabilities (427b0f58-644c-11e8-9e1b-e8e0b747a45a) NASL family Windows NASL id GOOGLE_CHROME_67_0_3396_62.NASL description The version of Google Chrome installed on the remote Windows host is prior to 67.0.3396.62. It is, therefore, affected by a multiple unspecified vulnerabilities as noted in Chrome stable channel update release notes for May 29th, 2018. Please refer to the release notes for additional information. Note that Nessus has not attempted to exploit these issues but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 110228 published 2018-05-31 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/110228 title Google Chrome < 67.0.3396.62 Multiple Vulnerabilities NASL family MacOS X Local Security Checks NASL id MACOSX_GOOGLE_CHROME_67_0_3396_62.NASL description The version of Google Chrome installed on the remote host is prior to 67.0.3396.62. It is, therefore, affected by multiple unspecified vulnerabilities as noted in Chrome stable channel update release notes for May 29th, 2018. Please refer to the release notes for additional information. Note that Nessus has not attempted to exploit these issues but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 110229 published 2018-05-31 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/110229 title Google Chrome < 67.0.3396.62 Multiple Vulnerabilities (macOS) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-1815.NASL description An update for chromium-browser is now available for Red Hat Enterprise Linux 6 Supplementary. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Chromium is an open source web browser, powered by WebKit (Blink). This update upgrades Chromium to version 67.0.3396.62. Security Fix(es) : * chromium-browser: Use after free in Blink (CVE-2018-6123) * chromium-browser: Type confusion in Blink (CVE-2018-6124) * chromium-browser: Overly permissive policy in WebUSB (CVE-2018-6125) * chromium-browser: Heap buffer overflow in Skia (CVE-2018-6126) * chromium-browser: Use after free in indexedDB (CVE-2018-6127) * chromium-browser: Out of bounds memory access in WebRTC (CVE-2018-6129) * chromium-browser: Out of bounds memory access in WebRTC (CVE-2018-6130) * chromium-browser: Incorrect mutability protection in WebAssembly (CVE-2018-6131) * chromium-browser: Use of uninitialized memory in WebRTC (CVE-2018-6132) * chromium-browser: URL spoof in Omnibox (CVE-2018-6133) * chromium-browser: Referrer Policy bypass in Blink (CVE-2018-6134) * chromium-browser: UI spoofing in Blink (CVE-2018-6135) * chromium-browser: Out of bounds memory access in V8 (CVE-2018-6136) * chromium-browser: Leak of visited status of page in Blink (CVE-2018-6137) * chromium-browser: Overly permissive policy in Extensions (CVE-2018-6138) * chromium-browser: Restrictions bypass in the debugger extension API (CVE-2018-6139) * chromium-browser: Restrictions bypass in the debugger extension API (CVE-2018-6140) * chromium-browser: Heap buffer overflow in Skia (CVE-2018-6141) * chromium-browser: Out of bounds memory access in V8 (CVE-2018-6142) * chromium-browser: Out of bounds memory access in V8 (CVE-2018-6143) * chromium-browser: Out of bounds memory access in PDFium (CVE-2018-6144) * chromium-browser: Incorrect escaping of MathML in Blink (CVE-2018-6145) * chromium-browser: Password fields not taking advantage of OS protections in Views (CVE-2018-6147) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-05-31 modified 2018-06-08 plugin id 110406 published 2018-06-08 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/110406 title RHEL 6 : chromium-browser (RHSA-2018:1815)
Redhat
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