#log4j

The Socket Appender in Apache Log4j Core versions 2.0-beta9 through 2.25.2 does not perform TLS hostname verification of the peer certificate, even when the [verifyHostName](https://logging.apache.org/log4j/2.x/manual/appenders/network.html#SslConfiguration-attr-verifyHostName) configuration attribute or the [log4j2.sslVerifyHostName](https://logging.apache.org/log4j/2.x/manual/systemproperties.html#log4j2.sslVerifyHostName) system property is set to true. This issue may allow a man-in-the-middle attacker to intercept or redirect log traffic under the following conditions: * The attacker is able to intercept or redirect network traffic between the client and the log receiver. * The attacker can present a server certificate issued by a certification authority trusted by the Socket Appender’s configured trust store (or by the default Java trust store if no custom trust store is configured). Users are advised to upgrade to Apache Log4j Core version 2.25.3, which addresses thi...

This week’s cyber stories show how fast the online world can turn risky. Hackers are sneaking malware into movie downloads, browser add-ons, and even software updates people trust. Tech giants and governments are racing to plug new holes while arguing over privacy and control. And researchers keep uncovering just how much of our digital life is still wide open. The new Threatsday Bulletin

A China-linked threat actor has been attributed to a cyber attack targeting an U.S. non-profit organization with an aim to establish long-term persistence, as part of broader activity aimed at U.S. entities that are linked to or involved in policy issues. The organization, according to a report from Broadcom's Symantec and Carbon Black teams, is "active in attempting to influence U.S. government

Ukrainian man accused of helping run Conti ransomware extradited from Ireland to the U.S. to face charges over global cyberattacks and $150M in ransom payments.

Despite a coordinated investment of time, effort, planning, and resources, even the most up-to-date cybersecurity systems continue to fail. Every day. Why?  It’s not because security teams can't see enough. Quite the contrary. Every security tool spits out thousands of findings. Patch this. Block that. Investigate this. It's a tsunami of red dots that not even the most crackerjack team on

What happens when you bring in a team of cybersecurity responders? How do we turn chaos into control, and what is the long-term value that Talos IR provides to the organizations we work with?

### Impact It is possible for a remote unauthenticated user to escape from the HQL execution context and perform a blind SQL injection to execute arbitrary SQL statements on the database backend, including when "Prevent unregistered users from viewing pages, regardless of the page rights" and "Prevent unregistered users from editing pages, regardless of the page rights" options are enabled. Depending on the used database backend, the attacker may be able to not only obtain confidential information such as password hashes from the database, but also execute UPDATE/INSERT/DELETE queries. The vulnerability may be tested in a default installation of XWIki Standard Flavor, including using the official Docker containers. An example query, which leads to SQL injection with MySQL/MariaDB backend is shown below: ``` time curl "http://127.0.0.1:8080/rest/wikis/xwiki/query?q=where%20doc.name=length('a')*org.apache.logging.log4j.util.Chars.SPACE%20or%201%3C%3E%271%5C%27%27%20union%20select%20...

Thorsten picks apart some headlines, highlights Talos’ report on an unknown attacker predominantly targeting Japan, and asks, “Where is the victim, and does it matter?”

From zero-day exploits to 5G network vulnerabilities, these are the threats that are expected to persist over the next 12 months.

During holidays and slow weeks, teams thin out and attackers move in. Here are strategies to bridge gaps, stay vigilant, and keep systems secure during those lulls.