CVE-2015-5800 in iTunes
Summary
by MITRE
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, 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-2015-09-16-1 and APPLE-SA-2015-09-16-3.
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Analysis
by VulDB Data Team • 06/18/2022
The vulnerability identified as CVE-2015-5800 represents a critical memory corruption flaw within WebKit engine components that power Apple's mobile operating systems and media software. This vulnerability specifically affects Apple iOS versions prior to 9.0 and iTunes versions prior to 12.3, creating a significant attack surface for remote threat actors who can leverage malicious web content to compromise affected systems. The flaw operates through a sophisticated code execution vector that enables adversaries to either gain unauthorized control over affected devices or disrupt system functionality through deliberate application crashes.
The technical implementation of this vulnerability stems from improper memory management within WebKit's rendering engine, where crafted web content can trigger buffer overflows or memory corruption conditions that ultimately lead to arbitrary code execution. This type of vulnerability falls under the CWE-122 category of "Heap-based Buffer Overflow" and aligns with ATT&CK technique T1059.004 for command and scripting interpreter. The flaw exploits the way WebKit processes certain web elements, particularly those involving complex rendering operations that manipulate memory structures in unexpected ways, allowing attackers to inject malicious code that executes with the privileges of the affected application.
The operational impact of CVE-2015-5800 extends beyond simple denial of service conditions, as it provides attackers with persistent access to compromised devices through remote code execution capabilities. When successfully exploited, this vulnerability enables threat actors to install malicious applications, access sensitive user data, monitor network communications, and potentially escalate privileges within the iOS environment. The vulnerability's remote exploitability means that attackers can compromise devices simply by delivering malicious web content through standard internet browsing activities, making it particularly dangerous for users who frequently access untrusted websites or download content from unknown sources.
Mitigation strategies for this vulnerability require immediate patching of affected systems to the latest available versions of iOS and iTunes, as Apple released security updates addressing the specific memory corruption issues. Organizations should implement network monitoring solutions to detect potential exploitation attempts and establish robust patch management procedures to ensure timely deployment of security updates. Additional defensive measures include configuring web content filtering systems, implementing browser security policies that restrict access to untrusted websites, and conducting regular vulnerability assessments to identify systems that may remain unpatched. The remediation process should also involve user education regarding safe browsing practices and the importance of maintaining up-to-date software versions to prevent exploitation of known vulnerabilities.