Google: Spyware vendors behind 50% of zero-days exploited in 2023
Google's Threat Analysis Group (TAG) and Google subsidiary Mandiant said they've observed a significant increase in the number of zero-day vulnerabilities exploited in attacks in 2023, many of them linked to spyware vendors and their clients.
The biggest cybersecurity and cyberattack stories of 2023
2023 was a big year for cybersecurity, with significant cyberattacks, data breaches, new threat groups emerging, and, of course, zero-day vulnerabilities.
New Microsoft Exchange zero-days allow RCE, data theft attacks
Microsoft Exchange is impacted by four zero-day vulnerabilities that attackers can exploit remotely to execute arbitrary code or disclose sensitive information on affected installations.
Winter Vivern exploits zero-day vulnerability in Roundcube Webmail servers
ESET Research discover campaigns by the Winter Vivern APT group that exploit a zero-day XSS vulnerability in the Roundcube Webmail server and target governmental entities and a think tank in Europe.
Cisco discloses new IOS XE zero-day exploited to deploy malware implant
Cisco disclosed a new high-severity zero-day (CVE-2023-20273) today, actively exploited to deploy malicious implants on IOS XE devices compromised using the CVE-2023-20198 zero-day unveiled earlier this week.
Hackers exploit critical flaw in WordPress Royal Elementor plugin
A critical severity vulnerability impacting Royal Elementor Addons and Templates up to version 1.3.78 is reported to be actively exploited by two WordPress security teams.
Sony confirms data breach impacting thousands in the U.S.
Sony Interactive Entertainment (Sony) has notified current and former employees and their family members about a cybersecurity breach that exposed personal information.
Apple discloses 2 new zero-days exploited to attack iPhones, Macs
Apple released emergency security updates to fix two new zero-day vulnerabilities exploited in attacks targeting iPhone and Mac users, for a total of 13 exploited zero-days patched since the start of the year.
Critical Infrastructure Companies Warned to Watch for Ongoing Cyberattack
Hackers exploited a ‘zero-day’ flaw in Ivanti software to breach 12 ministries in Norway Norway’s security officials warned around 20 critical infrastructure companies, other businesses and public agencies in the country they might also be vulnerable to a cyberattack disclosed Monday that hit 12 government ministries.
Apple releases emergency update to fix zero-day exploited in attacks
Apple has issued a new round of Rapid Security Response (RSR) updates to address a new zero-day bug exploited in attacks and impacting fully-patched iPhones, Macs, and iPads.
Critical Vulnerabilities in PaperCut Print Management Software
Our team is tracking in-the-wild exploitation of zero-day vulnerabilities against PaperCut MF/NG which allow for unauthenticated remote code execution due to an authentication bypass.
in February 2023, Kaspersky technologies detected a number of attempts to execute similar elevation-of-privilege exploits on Microsoft Windows servers belonging to small and medium-sized businesses in the Middle East, in North America, and previously in Asia regions. These exploits were very similar to already known Common Log File System (CLFS) driver exploits that we analyzed previously, but we decided to double check and it was worth it – one of the exploits turned out to be a zero-day, supporting different versions and builds of Windows, including Windows 11. The exploit was highly obfuscated with more than 80% of the its code being “junk” elegantly compiled into the binary, but we quickly fully reverse-engineered it and reported our findings to Microsoft. Microsoft assigned CVE-2023-28252 to the Common Log File System elevation-of-privilege vulnerability, and a patch was released on April 11, 2023, as part of April Patch Tuesday.
Move, Patch, Get Out the Way: 2022 Zero-Day Exploitation Continues at an Elevated Pace
Mandiant tracked 55 zero-day vulnerabilities that we judge were exploited in 2022. Although this count is lower than the record-breaking 81 zero-days exploited in 2021, it still represents almost triple the number from 2020. * Chinese state-sponsored cyber espionage groups exploited more zero-days than other cyber espionage actors in 2022, which is consistent with previous years. * We identified four zero-day vulnerabilities exploited by financially motivated threat actors. 75% of these instances appear to be linked to ransomware operations. * Products from Microsoft, Google, and Apple made up the majority of zero-day vulnerabilities in 2022, consistent with previous years. The most exploited product types were operating systems (OS) (19), followed by browsers (11), security, IT, and network management products (10), and mobile OS (6).
Clop ransomware claims it breached 130 orgs using GoAnywhere zero-day
The Clop ransomware gang claims to be behind recent attacks that exploited a zero-day vulnerability in the GoAnywhere MFT secure file transfer tool, saying they stole data from over 130 organizations.
Jenkins discloses dozens of zero-day bugs in multiple plugins
On Thursday, the Jenkins security team announced 34 security vulnerabilities affecting 29 plugins for the Jenkins open source automation server, 29 of the bugs being zero-days still waiting to be patched.
n February 2023, Kaspersky technologies detected a number of attempts to execute similar elevation-of-privilege exploits on Microsoft Windows servers belonging to small and medium-sized businesses in the Middle East, in North America, and previously in Asia regions. These exploits were very similar to already known Common Log File System (CLFS) driver exploits that we analyzed previously, but we decided to double check and it was worth it – one of the exploits turned out to be a zero-day, supporting different versions and builds of Windows, including Windows 11. The exploit was highly obfuscated with more than 80% of the its code being “junk” elegantly compiled into the binary, but we quickly fully reverse-engineered it and reported our findings to Microsoft. Microsoft assigned CVE-2023-28252 to the Common Log File System elevation-of-privilege vulnerability, and a patch was released on April 11, 2023, as part of April Patch Tuesday.
Move, Patch, Get Out the Way: 2022 Zero-Day Exploitation Continues at an Elevated Pace
* Mandiant tracked 55 zero-day vulnerabilities that we judge were exploited in 2022. Although this count is lower than the record-breaking 81 zero-days exploited in 2021, it still represents almost triple the number from 2020. * Chinese state-sponsored cyber espionage groups exploited more zero-days than other cyber espionage actors in 2022, which is consistent with previous years. * We identified four zero-day vulnerabilities exploited by financially motivated threat actors. 75% of these instances appear to be linked to ransomware operations. * Products from Microsoft, Google, and Apple made up the majority of zero-day vulnerabilities in 2022, consistent with previous years. The most exploited product types were operating systems (OS) (19), followed by browsers (11), security, IT, and network management products (10), and mobile OS (6).
