CVE-2012-0613 in iOS
Summary
by MITRE
WebKit, as used in Apple iOS before 5.1 and iTunes before 10.6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2012-03-07-1 and APPLE-SA-2012-03-07-2.
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Analysis
by VulDB Data Team • 01/11/2025
The vulnerability identified as CVE-2012-0613 represents a critical memory corruption flaw within WebKit engine components that power Apple's mobile and desktop operating systems. This vulnerability specifically affects Apple iOS versions prior to 5.1 and iTunes versions before 10.6, creating a significant attack surface that malicious actors could exploit to gain unauthorized system access. The flaw manifests through crafted web content that, when rendered by the affected WebKit components, triggers unpredictable memory behavior leading to potential code execution or system instability.
The technical nature of this vulnerability stems from improper memory management within WebKit's rendering engine, particularly in how it handles certain web page elements and JavaScript execution contexts. When users visit malicious websites containing specially crafted HTML, CSS, or JavaScript code, the WebKit engine fails to properly validate memory allocations and deallocations, resulting in buffer overflows or use-after-free conditions. These memory corruption issues occur during the parsing and execution of web content, making them particularly dangerous as they can be triggered simply by visiting a compromised website. The vulnerability's classification aligns with CWE-125, which addresses out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write operations, both of which are common manifestations of memory corruption flaws.
The operational impact of CVE-2012-0613 extends beyond simple application crashes, as it provides attackers with potential pathways for remote code execution on vulnerable systems. Attackers can craft malicious web pages that, when loaded in Safari or iTunes, cause the affected applications to behave unpredictably and potentially allow arbitrary code execution with the privileges of the affected application. This capability transforms a simple browsing session into a potential compromise vector, as users may unknowingly visit malicious sites while performing routine web activities. The vulnerability's impact is particularly severe in mobile environments where iOS devices are increasingly used for sensitive business and personal activities, making them attractive targets for sophisticated cyber attacks.
Mitigation strategies for this vulnerability require immediate system updates and patches from Apple, as the primary fix involves updating to iOS 5.1 or later versions and iTunes 10.6 or later. Organizations should implement network-level protections including web content filtering and sandboxing measures to reduce exposure while awaiting patches. Security teams should also consider deploying endpoint protection solutions that can detect and block known malicious web content patterns. The ATT&CK framework categorizes this vulnerability under T1203, which covers exploitation for privilege escalation, and T1059, which addresses command and scripting interpreters. Additionally, implementing network segmentation and monitoring for unusual outbound connections can help detect potential exploitation attempts. System administrators should also consider disabling JavaScript execution in web browsers when not required for specific business functions, though this approach may impact usability and web application functionality. Regular vulnerability assessments and penetration testing should be conducted to identify similar memory corruption vulnerabilities that may exist in other browser components or web applications within the organization's attack surface.