PT-2021-19288 · Vaadin · Com.Vaadin:Flow-Server

Name of the Vulnerable Software and Affected Versions: com.vaadin:flow-server versions 1.2.0 through 2.4.7 com.vaadin:flow-server versions 6.0.0 through 6.0.1 Description: The issue allows an attacker to access application classes and resources on the server via a crafted HTTP request. This is du...

SUSE: Security Advisory (SUSE-SU-2018:0424-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

PYSEC-2021-22

Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal systems, due to lack of parameter validation or IP address blacklisting. It is not possible to exfiltrate data or control request headers, but it might be possible to use the attack to perfor...

CVE-2021-29431 SSRF in Sydent due to missing validation of hostnames

Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal systems, due to lack of parameter validation or IP address blacklisting. It is not possible to exfiltrate data or control request headers, but it might be possible to use the attack to perfor...

GO-2021-0061 Denial of service in gopkg.in/yaml.v2

Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector...

CTF-All-In-One

This is a comprehensive guide to CTF Capture The Flag competitions, specifically focusing on the Pwn binary exploitation aspect. The book is written by Yang Chao, a member of L-Team, and is intended for beginners. It covers the basics of binary exploitation, including memory management, buffer...

Juniper Networks Junos OS 资源管理错误漏洞

Juniper Networks Junos OS is a Juniper Networks network operating system for the company's hardware devices. The operating system provides a secure programming interface and the Junos SDK. A resource management error vulnerability exists in Juniper Networks Junos OS, which arises from an...

The vulnerability of JunOS operating system’s MX series routers lies in the simultaneous execution using shared resources with improper synchronization, allowing attackers to escalate their privileges, execute arbitrary code, or cause service failures.

The vulnerability of the JunOS operating system’s MX series routers lies in the simultaneous execution of processes using shared resources with incorrect synchronization. Exploiting this vulnerability allows a remote attacker to enhance their privileges, execute arbitrary code, or cause service...

WP-DownloadManager < 1.68.5 - Server-Side Request Forgery (SSRF)

The plugin before version 1.68.5 is vulnerable to server-side request forgery SSRF attacks. This could allow an attacker identify open ports, network hosts and access web resources on a non-public facing network...

Updates on Microsoft Exchange Server Vulnerabilities

CISA has added two new Malware Analysis Reports MARs to Alert AA21-062A: Mitigate Microsoft Exchange Server Vulnerabilities. MAR-10331466-1.v1: China Chopper Webshell identifies a China Chopper webshell observed in post-compromised Microsoft Exchange Servers. After successfully exploiting a...

CVE-2021-21728

A ZTE product has a configuration error vulnerability. Because a certain port is open by default, an attacker can consume system processing resources by flushing a large number of packets to the port, and successfully exploiting this vulnerability could reduce system processing capabilities. This...

Kubernetes Namespaces Are Not as Secure as You Think

In a previous article, we described how the usage of namespaces in Kubernetes significantly simplifies the management of a Kubernetes cluster. However, managing multiple microservices on the same cluster comes with a security cost when not planned correctly. A common misconception around namespac...

A Quick Look Into Cloud Infrastructure Entitlement Management (CIEM)

The cloud security solutions market is growing rapidly, and there are many types of solutions to support your specific business needs. But figuring out the right tool—let alone the right type of tool—can be difficult. Gartner has five security archetypes that fall under the broader cloud security...

OESA-2021-1144 rubygem-nokogiri security update

Nokogiri parses and searches XML/HTML very quickly, and also has correctly implemented CSS3 selector support as well as XPath support. Nokogiri also features an Hpricot compatibility layer to help ease the change to using correct CSS and XPath. Security Fixes: Nokogiri is a Rubygem providing HTML...

Who has the fastest F1 website in 2021? Part 7

This is part 7 in a multi-part series looking at the loading performance of F1 websites. Not interested in F1? It shouldn't matter. This is just a performance review of 10 recently-built/updated sites that have broadly the same goal, but are built by different teams, and have different performanc...

Aurora campaign: Attacking Azerbaijan using multiple RATs

This post was authored by Hossein Jazi As tensions between Azerbaijan and Armenia continue, we are still seeing a number of cyber attacks taking advantage of this situation. On March 5th 2021, we reported an actor that used steganography to drop a new .Net Remote Administration Trojan. Since that...

Jetty vulnerable to incorrect handling of invalid large TLS frame, exhausting CPU resources

Impact When using SSL/TLS with Jetty, either with HTTP/1.1, HTTP/2, or WebSocket, the server may receive an invalid large greater than 17408 TLS frame that is incorrectly handled, causing CPU resources to eventually reach 100% usage. Workarounds The problem can be worked around by compiling the...

Watch Out! Mission Critical SAP Applications Are Under Active Attack

Cyber attackers are actively setting their sights on unsecured SAP applications in an attempt to steal information and sabotage critical processes, according to new research. "Observed exploitation could lead in many cases to full control of the unsecured SAP application, bypassing common securit...

The vulnerability of the get_old_root file in the fs/btrfs/ctree.c module of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the getoldroot file in the fs/btrfs/ctree.c module of the Linux kernel is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause a service failure...

Information Disclosure

jetty-server is vulnerable to information disclosure. The URI normalisation in default compliance mode does not escape % encoded characters in the request metadata by common Servlet implementations, allowing access to sensitive resources within the WEB-INF directory via the use of URI with %2e or...