CVE-2017-2457
published 2017-04-02CVE-2017-2457: An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. The issue involves the "WebKit" component. It…
PriorityP260high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
6.30%
92.7th percentile
An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios | — | — |
| apple | iphone_os | <= 10.2.1 | — |
| apple | safari | <= 10.0.3 | — |
| apple | safari | — | — |
| debian | webkit2gtk | < webkit2gtk 2.16.3-2 (bookworm) | webkit2gtk 2.16.3-2 (bookworm) |
Detection & IOCsextracted from sources · hover to see the quote
commandlet rs = new ReadableStream();
let cons = rs.getReader().constructor;
rs.getReader = 0x12345;
new cons(rs);↗
- →The vulnerability is a type confusion in WebKit's `constructJSReadableStreamDefaultReader`. Detect exploitation attempts by monitoring for JavaScript that replaces `ReadableStream.prototype.getReader` with a non-function (e.g., an integer like 0x12345) and then invokes the saved constructor with the modified stream object. ↗
- →The exploit abuses `constructJSReadableStreamDefaultReader` by passing a ReadableStream whose `getReader` property has been overwritten with a non-callable value, triggering type confusion. Look for JS content that saves `rs.getReader().constructor` before overwriting `getReader`. ↗
- →Affected versions: iOS before 10.3 and Safari before 10.1. Prioritize alerting on WebKit-based user agents running versions at or below these thresholds when processing remote web content. ↗
- →The specific vulnerable WebKit build identified in the PoC is version 10.0.2 (12602.3.12.0.1, r210800). Use this build string to identify unpatched instances in asset inventories or User-Agent logs. ↗
- ·The exploit targets the internal WebKit C++ function `constructJSReadableStreamDefaultReader`. The type confusion is triggered via the JavaScript API surface (`ReadableStream` / `getReader`), meaning no special browser configuration is required — any page load on a vulnerable WebKit version can trigger it. ↗
- ·The vulnerability requires no user interaction beyond visiting a crafted web page ('via a crafted web site'), making it exploitable in drive-by scenarios with no additional configuration prerequisites on the victim side. ↗
CVSS provenance
nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8LOW
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Ubuntu
WebKitGTK+ vulnerabilities
vendor_ubuntu·2017-04-10
CVE-2016-9642 WebKitGTK+ vulnerabilities
Title: WebKitGTK+ vulnerabilities
Summary: Several security issues were fixed in WebKitGTK+.
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.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK+, such as Epiphany, to make all the necessary changes.
Apple
CVE-2017-2457: Safari 10.1
vendor_apple·2017-03-27·CVSS 8.8
CVE-2017-2457 [HIGH] CVE-2017-2457: Safari 10.1
Apple Security Update: About the security content of Safari 10.1
Product: Safari
Version: 10.1
CVE: CVE-2017-2457
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed through improved memory handling.
Apple
CVE-2017-2457: iOS 10.3
vendor_apple·2017-03-27·CVSS 8.8
CVE-2017-2457 [HIGH] CVE-2017-2457: iOS 10.3
Apple Security Update: About the security content of iOS 10.3
Product: iOS
Version: 10.3
CVE: CVE-2017-2457
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed through improved memory handling.
Debian
CVE-2017-2457: webkit2gtk - An issue was discovered in certain Apple products. iOS before 10.3 is affected. ...
vendor_debian·2017·CVSS 8.8
CVE-2017-2457 [HIGH] CVE-2017-2457: webkit2gtk - An issue was discovered in certain Apple products. iOS before 10.3 is affected. ...
An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 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.
Scope: local
bookworm: resolved (fixed in 2.16.3-2)
bullseye: resolved (fixed in 2.16.3-2)
forky: resolved (fixed in 2.16.3-2)
sid: resolved (fixed in 2.16.3-2)
trixie: resolved (fixed in 2.16.3-2)
GHSA
GHSA-xr48-rvqv-pwjm: An issue was discovered in certain Apple products
ghsa_unreviewed·2022-05-17
CVE-2017-2457 [HIGH] CWE-119 GHSA-xr48-rvqv-pwjm: An issue was discovered in certain Apple products
An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 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.
OSV
CVE-2017-2457: An issue was discovered in certain Apple products
osv·2017-04-02·CVSS 8.8
CVE-2017-2457 [HIGH] CVE-2017-2457: An issue was discovered in certain Apple products
An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 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.
No detection rules found.
Bugzilla
CVE-2017-3106 flash-plugin: Remote Code Execution due to Type Confusion issue fixed in APSB17-23
bugzilla·2017-08-09·CVSS 8.8
CVE-2017-3106 [HIGH] CVE-2017-3106 flash-plugin: Remote Code Execution due to Type Confusion issue fixed in APSB17-23
CVE-2017-3106 flash-plugin: Remote Code Execution due to Type Confusion issue fixed in APSB17-23
Adobe Security Bulletin APSB17-23 for Adobe Flash Player describes a flaw that can possibly lead to code execution when Flash Player is used to play a specially crafted SWF file.
Quoting from the APSB17-23:
* Critical Type Confusion vulnerability that could lead to code execution - CVE-2017-3106
External References:
https://helpx.adobe.com/security/products/flash-player/apsb17-23.html
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 6 Supplementary
Via RHSA-2017:2457 https://access.redhat.com/errata/RHSA-2017:2457
Bugzilla
CVE-2017-3085 flash-plugin: Information Disclosure via Security Bypass issue fixed in APSB17-23
bugzilla·2017-08-09·CVSS 7.4
CVE-2017-3085 [HIGH] CVE-2017-3085 flash-plugin: Information Disclosure via Security Bypass issue fixed in APSB17-23
CVE-2017-3085 flash-plugin: Information Disclosure via Security Bypass issue fixed in APSB17-23
Adobe Security Bulletin APSB17-23 for Adobe Flash Player describes a flaw that can possibly lead to information disclosure when Flash Player is used to play a specially crafted SWF file.
Quoting from the APSB17-23:
* Important Security Bypass vulnerability that could lead to Information Disclosure - CVE-2017-3085
External References:
https://helpx.adobe.com/security/products/flash-player/apsb17-23.html
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 6 Supplementary
Via RHSA-2017:2457 https://access.redhat.com/errata/RHSA-2017:2457
http://www.securityfocus.com/bid/97147http://www.securitytracker.com/id/1038138https://security.gentoo.org/glsa/201706-15https://support.apple.com/HT207600https://support.apple.com/HT207617https://www.exploit-db.com/exploits/41803/http://www.securityfocus.com/bid/97147http://www.securitytracker.com/id/1038138https://security.gentoo.org/glsa/201706-15https://support.apple.com/HT207600https://support.apple.com/HT207617https://www.exploit-db.com/exploits/41803/
2017-04-02
Published