When I was just surfing the web normally it would happen every-so-often - maybe a few times a night. They weren’t isolated to any particular sites. They would crop up now and then, with no apparent pattern. clearing caches, restarting the browser, tracing routes to the site I was trying to connect to, rebooting the computer, cycling the router, checking my ISP’s status page for outages, seeking enlightenment from the Duck) but none of that helped. Other browsers like Chrome report connection errors in similar ways.) I do most of my web surfing from a desktop computer, and I’ve been seeing this error message a fair bit lately: Exploits started on December 1, according to Cloudflare, and an initial alert by CERT New Zealand sparked others by CISA and the UK's National Cyber Security Centre.Having problems connecting to sites with browsers like Firefox and Chrome? Do pages seem to hang with a “Performing TLS Handshake” message at the bottom? Is it particularly bad if you try to open multiple tabs all at once? Here’s one reason why that happens, and how to fix it. The original flaw in Log4j, a Java library for logging error messages in applications, has dominated headlines since last week. "At least a dozen groups are using these vulnerabilities so immediate action should be taken to either patch, remove JNDI, or take it out of the classpath (preferably all of the above)," Bambenek said.
John Bambenek, principal threat hunter at Netenrich, told ZDNet the solution is to disable JNDI functionality entirely (which is the default behavior in the latest version). It notes that the issue can be mitigated in prior releases by removing the JndiLookup class from the classpath. The CVE says Log4j 2.16.0 fixes the problem by removing support for message lookup patterns and disabling JNDI functionality by default. to craft malicious input data using a JNDI Lookup pattern resulting in a denial of service (DOS) attack," the CVE description says.Īpache has already released a patch, Log4j 2.16.0, for this issue. The description of the new vulnerability, CVE 2021-45046, says the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was "incomplete in certain non-default configurations." US: Hundreds of millions of devices at riskĪ second vulnerability involving Apache Log4j was found on Tuesday after cybersecurity experts spent days attempting to patch or mitigate CVE-2021-44228.So far, nearly half of corporate networks have been attacked.Security firm discovers new attack vector.Log4j zero-day: How to protect yourself.
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