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How the mentioned CVE works:
CVE-2022-32792 is a critical memory corruption vulnerability within the WebKit browser engine. The flaw originates from insufficient bounds checking when processing maliciously crafted web content. Specifically, a lack of proper validation on memory operations allows an attacker to read or write data outside the intended buffer’s boundaries. By manipulating the heap memory layout through a specially designed HTML page, an attacker can cause a use-after-free or an out-of-bounds write. This memory corruption can then be leveraged to overwrite function pointers or other critical data structures in memory. Successful exploitation leads to the execution of arbitrary machine code with the privileges of the current user, all within the context of the application using WebKit, such as Safari.
Platform: Apple iOS/iPadOS/macOS/tvOS/watchOS
Version: Pre-15.6 and Pre-12.5
Vulnerability : Memory Corruption
Severity: Critical
date: 2022-07-20
Prediction: Patched 2022-07-20
What Undercode Say:
`curl -s “https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32792” | grep -i “description”`
`python3 -c “import struct; print(‘A’ 64)” > crash.html`
`lldb –source-order — /Applications/Safari.app/Contents/MacOS/Safari`
How Exploit:
Crafted HTML/JS payload triggers out-of-bounds write in WebKit’s JavaScriptCore, leading to remote code execution when a user visits a malicious website.
Protection from this CVE:
Update to iOS 15.6, iPadOS 15.6, macOS Monterey 12.5, tvOS 15.6, watchOS 8.7. Disable JavaScript.
Impact:
Full system compromise, arbitrary code execution, complete application control.
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Sources:
Reported By: www.cve.org
Extra Source Hub:
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