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CVE-2021-22101 – If someone can run out of resources, this is similar to a denial of service technique! (11-11-2021)
Preface: Who cares about spending all your money, maybe just yourself! Who cares about running out of your system resources, perhaps it is the system owner. Background: VMware Tanzu Application Service is a modern application platform for enterprises that want to continuously deliver and run microservices across clouds. Release new features and updates to production…
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VMware – Security advisory to address a privilege escalation vulnerability in vCenter Server and Cloud Foundation – 10th Nov, 2021
Preface: Every Windows system is vulnerable to a particular NTLM relay attack that could allow attackers to escalate privileges from User to Domain Admin. Background: If your administration portal is a web application which protected by IWA (Integrated Windows Authentication). When client send a request to web server doing handshaking, the web server will be…
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Are you struggling with weaknesses in the SAP design – CVE-2021-40501? 9th Nov, 2021
Preface: In the digital world, it always has unexpected problems. Background: SAP kernel is the core component of any SAP system. It includes executable files on the SAP server, which are used to connect to the system and execute SAP programs. In the SAP system environment, remote function call (RFC) is one of the main…
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“excessive resource usage” in jsonrpc whether Citrix announcement (CTX 330728 ) security focus? (9th Nov 2021)
Preface: The Citrix ADC NITRO protocol allows you to configure and monitor the Citrix ADC appliance programmatically by usingRepresentational State Transfer (REST) interfaces. Therefore, NITRO applications can be developed in any programming language.Additionally, for applications that must be developed in Java or .NET or Python, NITRO APIs are exposed through relevant librariesthat are packaged as…
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Siemens Security Advisory by Siemens ProductCERT – 9th Nov 2021
Preface: Directory traversal (path traversal) happens when the attacker is able to read files on the web server outside of the directory of the website. Directory traversal is only possible if the website developer makes mistakes. Background: SIMATIC PCS 7 Web can be used to operate and monitor aplant via Intranet or Internet. Extensive configuration…
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CVE-2021-41250 Be alert to the Python Discord server (together with Python code) 5th Nov, 2021
Preface: One aspect of the Microsoft-python server focuses on Python or Microsoft-developed tools. If you want to develop data science, security or games, then the Python Discord server is your best choice. Background: Bots on Discord, the group messaging platform, are helpful artificial intelligence that can perform several useful tasks on your server automatically. Build…
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Abuse macOS features, installing undetectable malware – 2nd Nov, 2021
Preface: Apple replaces bash with zsh as the default shell in macOS. Background: According to the ZSH documentation on Startup/Shutdown Files, there are a number of files (located in the home directory $HOME or ~/):[.]zprofile (login shell)[.]zshenv (environment variables)[.]zshrc (interactive shell)[.]zlogin (login shell)[.]zlogout (when the shell exits) When zsh start, it looks for environment variables…
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Officials stated that CVE-2021-1048 may be subject to limited and targeted use. But did not elaborate? Can we guess what happened? 3rd Nov 2021
Preface: Android garbage collection is an automatic process which removes unused objects from memory. However, frequent garbage collection consumes a lot of CPU, and it will also pause the app. Background: The garbage collection of Unix sockets first selects a set of candidate sockets that are only referenced from the flight (total_refs == inflight_refs). This…
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CVE-2021-41036 old-wine-in-a-new-bottle, problem resolved. But you should stay alert! (2nd Nov, 2021)
Preface: The open source Paho MQTT project for embedded C to connect and communicate with IoT Platform. Background: MQTT is based on the client-server communication mode. MQTT server is called as MQTT Broker. Currently, there are many MQTT Brokers in the IIoT world. MQTT client libraries under different programming languages and platforms (see below): Eclipse…
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Vulnerabilities review – Chrome CVE-2021-38000 & CVE-2021-38003 (31-10-2021)
Preface: Mojo is a collection of runtime libraries providing a platform-agnostic abstraction of common IPC primitives, a message IDL format, and a bindings library with code generation for multiple target language to facilitate convenient message passing across arbitrary inter – and intra-process boundaries. Background:Chrome limits most of the attack surface of the web (e.g., DOM…