CVE-2013-7457 in Android
Summary
by MITRE
Unspecified vulnerability in the Qualcomm components in Android before 2016-07-05 allows attackers to gain privileges via a crafted application.
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Analysis
by VulDB Data Team • 02/21/2019
This vulnerability resides within the Qualcomm Snapdragon chipset components that were integrated into various android devices prior to the 2016-07-05 security update cycle. The unspecified nature of the flaw indicates a critical weakness in the hardware-software integration layer where Qualcomm's trusted execution environment or secure boot mechanisms failed to properly validate or isolate malicious code execution. Such vulnerabilities typically exploit the trust relationships between different security domains within the mobile platform architecture, allowing attackers to bypass hardware-level protections that should prevent unauthorized privilege escalation.
The technical implementation of this vulnerability likely involves manipulation of the Qualcomm component's memory management or execution flow control mechanisms. Attackers could craft malicious applications that exploit weaknesses in the secure processing units or hypervisor implementations within the Snapdragon chipset. These flaws often relate to improper validation of input parameters, buffer overflows, or race conditions that occur during the boot process or when handling privileged operations. The vulnerability represents a classic case of insufficient privilege separation between different execution contexts, where user-space applications can manipulate system-level components through indirect code execution paths.
The operational impact of this vulnerability extends beyond simple privilege escalation to potentially enable complete device compromise. Attackers could leverage the flaw to install persistent backdoors, extract sensitive data from secure enclaves, or modify system firmware without proper authentication. This represents a significant threat to mobile device security as it undermines the fundamental trust model of android devices, where the hardware-level security components should provide isolation from malicious software. The vulnerability affects a broad range of devices since Qualcomm chipsets were widely adopted across multiple android manufacturers, creating a substantial attack surface.
Mitigation strategies should focus on immediate security updates and patches provided by device manufacturers, as well as implementing runtime monitoring solutions to detect anomalous behavior patterns. Organizations should conduct comprehensive vulnerability assessments to identify affected devices and establish incident response procedures for potential exploitation. The vulnerability aligns with attack patterns described in the attack tree model where adversaries leverage hardware-level weaknesses to achieve persistent access. Security professionals should also consider implementing mobile device management solutions that can enforce security policies and monitor for suspicious activities. This type of vulnerability often requires coordinated patching efforts across multiple software layers including the operating system, firmware, and hardware components, making it particularly challenging to address comprehensively.