Maddie Stone

The issue involves insufficient checks when processing web content within the kernel of iOS, watchOS, iPadOS, and macOS, potentially allowing an attacker to elevate their privileges. Reports indicate that this issue may have been actively exploited in versions of iOS prior to iOS 16.7. The vulnerability allows malicious applications to bypass signature validation and gain elevated privileges. The issue was addressed by implementing improved checks. The vulnerability affects multiple Apple platforms. Technical details reveal the exploitation involves triggering a bug on an old thread, invoking `ipc entry grow table()` through `mach port allocate name()`, and subsequently calling `mach thread self()` to obtain a new mach name.

A certificate validation issue exists in Apple’s CoreTrust security component, potentially allowing malicious applications to bypass signature validation. Reports indicate that this issue may have been actively exploited against versions of iOS prior to version 16.7. The CoreTrust vulnerability, identified as CVE-2023-41991, was reportedly exploited by commercial surveillance vendors, including Intellexa and NSO Group, to install malicious software on iPhones. The issue involves incorrect validation of apps with multiple signers, allowing attackers to circumvent normal signature checks. This flaw was used in conjunction with other vulnerabilities, such as local privilege escalation and remote code execution. The exploit was significant enough that Apple released patches in iOS versions 16.7 and 17.0.1, as well as macOS Ventura 13.6, watchOS 9.6.3, and watchOS 10.0.1 to address the vulnerability.

A vulnerability exists in the WebKit engine, potentially allowing attackers to execute arbitrary code by processing malicious web content. This issue has been actively exploited in some instances, with reports indicating exploitation against iOS versions prior to 16.7. The vulnerability was addressed through improved checks in updated versions of the software. A threat actor, linked to Russia’s Foreign Intelligence Service (SVR), leveraged this vulnerability (CVE-2023-41993) in a watering hole campaign, compromising legitimate websites and redirecting visitors to malicious login pages to harvest Microsoft 365 credentials. Intellexa, a spyware vendor, also utilized this vulnerability as part of a zero-day exploit chain to deploy the Predator spyware on targets in Egypt. The exploit chain involved multiple zero-day vulnerabilities, including CVE-2023-41993, to gain deep access to devices.

The issue is related to an elevation-of-privilege vulnerability in the Windows Error Reporting Service, which allows attackers to affect the system. This vulnerability is associated with insecure privilege management and can be exploited to gain administrator privileges on a Windows device. There have been reports of this vulnerability being exploited in the wild. The Falcon Complete MDR team has discovered and blocked a zero-day exploit affecting Windows Error Reporting.

O problema está relacionado a uma vulnerabilidade do tipo “use after free”, que pode ser explorada por um invasor remoto para acessar dados confidenciais, comprometer a integridade dos dados e causar uma negação de serviço. O processamento de conteúdo da web criado de forma maliciosa pode levar à execução de código arbitrário.

A vulnerabilidade está relacionada a uma gravação fora dos limites, também conhecida como estouro de buffer baseado em heap, na função `rasterize edges 8` da biblioteca Pixman. Isso ocorre devido a um estouro de inteiro em `pixman sample floor y`. A exploração desse problema poderia permitir que um invasor remoto executasse código arbitrário. A biblioteca é usada para renderização gráfica de baixo nível em vários projetos de código aberto, incluindo X.Org, Cairo, Firefox e gerenciadores de composição baseados no protocolo Wayland.

O problema está relacionado a um estouro de inteiro na função `xmlParseNameComplex()` da biblioteca libxml2 ao analisar documentos XML com a opção de analisador `XML PARSE HUGE` ativada. Isso pode levar a uma tentativa de acessar um array com um deslocamento negativo, resultando normalmente em uma falha de segmentação. Um invasor remoto poderia explorar essa vulnerabilidade para executar código arbitrário no sistema, persuadindo uma vítima a abrir um arquivo especialmente criado.

O problema está relacionado à validação insuficiente de entradas não confiáveis em Intents, permitindo que um invasor remoto redirecione o navegador para um URL malicioso por meio de uma página HTML especialmente criada. Isso pode ser explorado por um invasor remoto para obter acesso ao sistema.

O problema está relacionado a um estouro de buffer de heap no componente de interface do usuário do Google Chrome no Android. Isso poderia permitir que um invasor remoto, após ter comprometido o processo de renderização, potencialmente escapasse da sandbox por meio de uma página HTML maliciosa.

The issue is related to a use-after-free vulnerability in the Android kernel, specifically in the binder.c driver. This vulnerability allows an elevation of privilege from an application to the Linux kernel, potentially giving an attacker full control over the device. No user interaction is required to exploit this vulnerability, but it does require either the installation of a malicious local application or a separate vulnerability in a network-facing application. There have been reports of malicious apps exploiting this vulnerability, and it has been used in real-world attacks.