Incident: iOS Jailbreak Exploits PDF Vulnerability on Apple Devices

Published Date: 2011-07-06

Postmortem Analysis
Timeline 1. The software failure incident of the unpatched security exploit enabling root access on iOS devices through Jailbreakme.com (v3.0) happened in July 2011 as per the article [6754].
System The system that failed in the software failure incident described in Article 6754 is: 1. iOS PDF display code vulnerability [6754]
Responsible Organization 1. The entity responsible for causing the software failure incident in this case was the website Jailbreakme.com, which utilized an unpatched security exploit to enable root access on iOS devices [6754].
Impacted Organization 1. iOS users who visited Jailbreakme.com (v3.0) [6754]
Software Causes 1. The software cause of the failure incident was an unpatched security exploit in the iOS PDF display code that allowed for root access to the file system when visiting Jailbreakme.com [6754].
Non-software Causes 1. Trusting a website that uses an unpatched security exploit to enable root access on iOS devices [6754] 2. Exploiting a vulnerability in the iOS PDF display code [6754] 3. Lack of evidence regarding the presence of any malicious payload in the exploit [6754]
Impacts 1. The software failure incident allowed unauthorized access to iOS devices, enabling root access to the file system [6754]. 2. The exploit installed the Cydia app store on the compromised devices [6754]. 3. The incident exposed a vulnerability in the iOS PDF display code, which could potentially be exploited for malicious purposes [6754].
Preventions 1. Implementing regular security patches and updates to fix vulnerabilities in the software [6754]. 2. Conducting thorough security testing and audits to identify and address potential exploits before they can be used maliciously [6754]. 3. Educating users about the risks of using unauthorized jailbreaking methods and promoting safe practices to prevent security breaches [6754].
Fixes 1. Applying the patch developed by the Cydia developers to fix the PDF vulnerability exploited by Jailbreakme.com [6754].
References 1. Jailbreakme.com [6754]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization, multiple_organization (a) The software failure incident related to the unpatched security exploit enabling root access on iOS devices through Jailbreakme.com has happened before with the same organization, Apple. The article mentions that Apple has previously released its own fix in the form of an OS update to address similar vulnerabilities exploited by Jailbreakme.com [6754]. (b) The software failure incident of exploiting vulnerabilities in iOS devices to enable jailbreaking has also been observed with other organizations or products. The article mentions that the Cydia developers have a patch ready to fix the PDF vulnerability exploited by Jailbreakme.com, indicating that similar incidents may have occurred with other jailbreaking tools or services [6754].
Phase (Design/Operation) design, operation (a) The software failure incident in Article 6754 can be attributed to the design phase. The incident occurred due to a vulnerability in the iOS PDF display code, which was exploited by Jailbreakme.com to enable root access on iOS devices. The exploit took advantage of a flaw in the system's design, allowing users to jailbreak their devices without the need for a computer. The Cydia developers had a patch ready to fix the PDF vulnerability, highlighting that the failure was related to contributing factors introduced during system development [6754]. (b) Additionally, the software failure incident in Article 6754 can also be linked to the operation phase. Users visiting Jailbreakme.com and tapping on a link triggered the exploit, leading to the unauthorized gaining of root access on their devices. This misuse of the system by users contributed to the failure incident, showcasing that operational factors played a role in the exploit's success [6754].
Boundary (Internal/External) within_system (a) within_system: The software failure incident described in the article is within the system. The failure occurred due to a vulnerability in the iOS PDF display code that was exploited by visiting Jailbreakme.com, enabling root access on iOS devices [6754]. The exploit worked by gaining root access to the file system and installing the Cydia app store, indicating an internal system vulnerability that was exploited.
Nature (Human/Non-human) non-human_actions (a) The software failure incident in this case is related to non-human actions. The incident occurred due to a vulnerability in the iOS PDF display code that was exploited by visiting a specific website, Jailbreakme.com, using Mobile Safari. This exploit allowed for root access to the file system and installation of the Cydia app store without requiring a computer. The exploit was triggered by tapping a link on the website, indicating that the failure was due to a flaw in the software itself rather than human actions [6754].
Dimension (Hardware/Software) software (a) The software failure incident in Article 6754 is related to a vulnerability in the iOS PDF display code, which is a software issue. The exploit at Jailbreakme.com leverages this software vulnerability to gain root access to iOS devices [6754]. (b) The software failure incident in Article 6754 is caused by a software vulnerability in the iOS PDF display code, leading to the exploit at Jailbreakme.com. This vulnerability allows the exploit to gain root access to the file system and install the Cydia app store [6754].
Objective (Malicious/Non-malicious) non-malicious (a) The software failure incident described in the article is non-malicious. The incident involves a security exploit used by Jailbreakme.com to enable root access on iOS devices through a vulnerability in the iOS PDF display code. The exploit allows users to jailbreak their devices easily without the need for a computer. While there is a mention of potential risks and the lack of evidence regarding malicious payloads, the primary objective of the incident seems to be providing users with a convenient way to jailbreak their devices [6754].
Intent (Poor/Accidental Decisions) poor_decisions (a) The intent of the software failure incident related to poor_decisions: - The software failure incident in the article was related to a deliberate decision to exploit an unpatched security vulnerability in the iOS PDF display code to enable root access on iOS devices through Jailbreakme.com [6754]. - The decision to exploit this vulnerability was intentional to provide users with a fast and easy jailbreak process without the need for a computer [6754]. - The article mentions that the Cydia developers had a patch ready to fix the PDF vulnerability, indicating that the exploit was a result of a deliberate choice to bypass security measures [6754]. (b) The intent of the software failure incident related to accidental_decisions: - There is no indication in the article that the software failure incident was a result of accidental decisions or unintended mistakes. The exploit through Jailbreakme.com was a deliberate action to gain root access on iOS devices by exploiting a known vulnerability [6754]. - The decision to use the exploit was purposeful, and there is no mention of accidental actions leading to the software failure incident [6754]. Therefore, based on the information provided in the article, the software failure incident was primarily driven by poor_decisions rather than accidental_decisions.
Capability (Incompetence/Accidental) development_incompetence (a) The software failure incident in Article 6754 can be attributed to development incompetence. The incident involved a security exploit on Jailbreakme.com that enabled root access on iOS devices through a vulnerability in the iOS PDF display code. The exploit allowed users to jailbreak their devices easily without the need for a computer. The Cydia developers had a patch ready to fix the PDF vulnerability, indicating that the exploit was a result of a lack of professional competence in ensuring the security of the iOS system [6754]. (b) The software failure incident in Article 6754 does not seem to be accidental. The deliberate exploitation of the vulnerability in the iOS PDF display code to gain root access and install the Cydia app store indicates a purposeful action rather than an accidental occurrence [6754].
Duration temporary (a) The software failure incident described in the article is temporary. The incident involves a security exploit on the Jailbreakme.com website that allows users to jailbreak their iOS devices by exploiting a vulnerability in the iOS PDF display code. The exploit grants root access to the file system and installs the Cydia app store. However, the Cydia developers have a patch ready to fix the PDF vulnerability, and it is mentioned that Apple will likely release its own fix in the form of an OS update soon [Article 6754]. This indicates that the software failure incident is temporary and can be remedied through patches and updates.
Behaviour value, other (a) crash: The article does not mention any system crash related to the software failure incident. (b) omission: The software failure incident does not involve the system omitting to perform its intended functions at an instance(s). (c) timing: The software failure incident does not involve the system performing its intended functions too late or too early. (d) value: The software failure incident involves the system performing its intended functions incorrectly. The vulnerability in the iOS PDF display code allowed the exploit to gain root access to the file system and install the Cydia app store, indicating incorrect behavior [6754]. (e) byzantine: The software failure incident does not involve the system behaving erroneously with inconsistent responses and interactions. (f) other: The software failure incident involves the system being exploited through an unpatched security exploit on Jailbreakme.com, leading to unauthorized access and installation of software on iOS devices. This behavior falls under the category of unauthorized access and exploitation, which is not explicitly covered in the provided options.

IoT System Layer

Layer Option Rationale
Perception None None
Communication None None
Application None None

Other Details

Category Option Rationale
Consequence theoretical_consequence (a) unknown (b) unknown (c) unknown (d) unknown (e) unknown (f) unknown (g) no_consequence (h) theoretical_consequence: The article discusses the potential consequences of the software failure incident related to the jailbreak exploit on Jailbreakme.com. It mentions that while there is no evidence of any malicious payload inside the exploit, there is also no evidence that there isn't. This uncertainty raises the caution for users to be wary and emphasizes the principle of "caveat emptor" (buyer beware) [6754].
Domain information (a) The software failure incident mentioned in Article 6754 is related to the information industry. The incident involves a website, Jailbreakme.com, exploiting an unpatched security vulnerability in iOS devices to enable root access and install the Cydia app store [6754]. This incident pertains to the production and distribution of information as it involves manipulating the software on iOS devices to access additional functionalities beyond what Apple intended.

Sources

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