CVE-2017-2531

HIGH

Safari < 10.1.1 - Remote Code Execution via WebKit Memory Corruption

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-2531. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a vulnerability in JavaScriptCore (WebKit) where a mismatch in checks between `emitPutDerivedConstructorToArrowFunctionContextScope` and `initializeArrowFunctionContextScopeIfNeeded` leads to an out-of-bounds (OOB) write. The exploit triggers the vulnerability by creating a complex class hierarchy with arrow functions and super expressions.

Description

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. tvOS before 10.2.1 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.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Google Security Research · javascriptdosmultiple

https://www.exploit-db.com/exploits/42104

View Code ZIP pw:eip

This PoC exploits a vulnerability in JavaScriptCore (WebKit) where a mismatch in checks between `emitPutDerivedConstructorToArrowFunctionContextScope` and `initializeArrowFunctionContextScopeIfNeeded` leads to an out-of-bounds (OOB) write. The exploit triggers the vulnerability by creating a complex class hierarchy with arrow functions and super expressions.

Classification

Working Poc 100%

Attack Type

Rce

Complexity

Complex

Reliability

Reliable

Target: WebKit JavaScriptCore (Safari, other WebKit-based browsers)

No auth needed

Prerequisites: Target must be using a vulnerable version of WebKit

MITRE ATT&CK