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WordPress has issued an automatic update to address a critical flaw in the  Jetpack plugin  that's installed on over five million sites. The vulnerability, which was unearthed during an internal security audit, resides in an API present in the plugin since  version 2.0 , which was released in November 2012. "This vulnerability could be used by authors on a site to manipulate any files in the WordPress installation," Jetpack  said  in an advisory. 102 new versions of Jetpack have been released to remediate the bug. While there is no evidence the issue has been exploited in the wild, it's not uncommon for flaws in popular WordPress plugins to be leveraged by threat actors looking to take over the sites for malicious ends. This is not the first time severe security weaknesses in Jetpack have prompted WordPress to force install the patches. In November 2019, Jetpack released  version 7.9.1  to fix a defect in the way the plugin handled embed code th...

A financially motivated threat actor is actively scouring the internet for unprotected  Apache NiFi instances  to covertly install a cryptocurrency miner and facilitate lateral movement. The findings come from the SANS Internet Storm Center (ISC), which detected a spike in HTTP requests for "/nifi" on May 19, 2023. "Persistence is achieved via timed processors or entries to cron,"  said  Dr. Johannes Ullrich, dean of research for SANS Technology Institute. "The attack script is not saved to the system. The attack scripts are kept in memory only." A honeypot setup allowed the ISC to determine that the initial foothold is weaponized to drop a shell script that removes the "/var/log/syslog" file, disables the firewall, and terminates competing crypto-mining tools, before downloading and launching the Kinsing malware from a remote server. It's worth pointing out that  Kinsing  has a  track record  of  leveraging  publicly disclosed vul...

Cybersecurity researchers have found "backdoor-like behavior" within Gigabyte systems, which they say enables the  UEFI firmware  of the devices to drop a Windows executable and retrieve updates in an unsecure format. Firmware security firm Eclypsium  said  it first detected the anomaly in April 2023. Gigabyte has since acknowledged and addressed the issue. "Most Gigabyte firmware includes a Windows Native Binary executable embedded inside of the UEFI firmware," John Loucaides, senior vice president of strategy at Eclypsium, told The Hacker News. "The detected Windows executable is dropped to disk and executed as part of the Windows startup process, similar to the  LoJack double agent attack . This executable then downloads and runs additional binaries via insecure methods." "Only the intention of the author can distinguish this sort of vulnerability from a malicious backdoor," Loucaides added. The executable, per Eclypsium, is embedded in...

Improperly deactivated and abandoned Salesforce  Sites  and  Communities  (aka Experience Cloud) could pose severe risks to organizations, leading to unauthorized access to sensitive data. Data security firm Varonis dubbed the abandoned, unprotected, and unmonitored resources " ghost sites ." "When these Communities are no longer needed, though, they are often set aside but not deactivated," Varonis Threat Labs researchers  said  in a new report shared with The Hacker News. "Because these unused sites are not maintained, they aren't tested against vulnerabilities, and Admins fail to update the site's security measures according to newer guidelines." Varonis said it found many of these deactivated (but still active) sites still fetching new data, thereby allowing threat actors to extract data by manipulating the  host header  in the HTTP request. Identifying the complete internal URLs associated with the sites is challenging but not impossi...

Microsoft has shared details of a now-patched flaw in Apple macOS that could be abused by threat actors with root access to bypass security enforcements and perform arbitrary actions on affected devices. Specifically, the flaw – dubbed  Migraine  and tracked as CVE-2023-32369 – could be abused to get around a key security measure called System Integrity Protection ( SIP ), or "rootless," which limits the actions the root user can perform on protected files and folders. "The most straight-forward implication of a SIP bypass is that [...] an attacker can create files that are protected by SIP and therefore undeletable by ordinary means," Microsoft researchers Jonathan Bar Or, Michael Pearse, and Anurag Bohra  said . Even worse, it could be exploited to gain arbitrary kernel code execution and even access sensitive data by replacing databases that manage Transparency, Consent, and Control (TCC) policies. The bypass is made possible by leveraging a built-in macOS tool ...

Finding threat actors before they find you is key to beefing up your cyber defenses. How to do that efficiently and effectively is no small task – but with a small investment of time, you can master threat hunting and save your organization millions of dollars. Consider this staggering statistic. Cybersecurity Ventures estimates that cybercrime will take a $10.5 trillion toll on the global economy by 2025. Measuring this amount as a country, the cost of cybercrime equals the world's third-largest economy after the U.S. and China. But with effective threat hunting, you can keep bad actors from wreaking havoc on your organization. This article offers a detailed explanation of threat hunting – what it is, how to do it thoroughly and effectively, and how cyber threat intelligence (CTI) can bolster your threat-hunting efforts. What is threat hunting? Cyber threat hunting is gathering evidence that a threat is materializing. It's a continuous process that helps you find the threats that...

The threat actor known as  Dark Pink  has been linked to five new attacks aimed at various entities in Belgium, Brunei, Indonesia, Thailand, and Vietnam between February 2022 and April 2023. This includes educational institutions, government agencies, military bodies, and non-profit organizations, indicating the adversarial crew's continued focus on high-value targets. Dark Pink, also called Saaiwc Group, is an advanced persistent threat (APT) actor believed to be of Asia-Pacific origin, with  attacks   targeting  entities primarily located in East Asia and, to a lesser extent, in Europe. The group employs a set of custom malware tools such as TelePowerBot and KamiKakaBot that provide various functions to exfiltrate sensitive data from compromised hosts. "The group uses a range of sophisticated custom tools, deploys multiple kill chains relying on spear-phishing emails," Group-IB security researcher Andrey Polovinkin  said  in a technical report ...

The threat actors behind  RomCom RAT  are leveraging a network of fake websites advertising rogue versions of popular software at least since July 2022 to infiltrate targets. Cybersecurity firm Trend Micro is tracking the activity cluster under the name Void Rabisu, which is also known as Tropical Scorpius (Unit 42) and UNC2596 (Mandiant). "These lure sites are most likely only meant for a small number of targets, thus making discovery and analysis more difficult," security researchers Feike Hacquebord, Stephen Hilt, Fernando Merces, and Lord Alfred Remorin  said . Some of the impersonated apps spotted so far include AstraChat, Devolutions' Remote Desktop Manager, Gimp, GoTo Meeting, KeePass, OpenAI ChatGPT, Signal, Veeam Backup & Replication, and WinDirStat. RomCom RAT was  first chronicled  by Palo Alto Networks Unit 42 in August 2022, linking it to a financially motivated group deploying  Cuba Ransomware  (aka COLDDRAW). It's worth noting t...

Enterprise security firm Barracuda on Tuesday disclosed that a recently patched zero-day flaw in its Email Security Gateway (ESG) appliances had been abused by threat actors since October 2022 to backdoor the devices. The latest  findings  show that the  critical vulnerability , tracked as  CVE-2023-2868  (CVSS score: N/A), has been actively exploited for at least seven months prior to its discovery. The flaw, which Barracuda identified on May 19, 2023, affects versions 5.1.3.001 through 9.2.0.006 and could allow a remote attacker to achieve code execution on susceptible installations. Patches were released by Barracuda on May 20 and May 21. "CVE-2023-2868 was utilized to obtain unauthorized access to a subset of ESG appliances," the network and email security company  said  in an updated advisory. "Malware was identified on a subset of appliances allowing for persistent backdoor access. Evidence of data exfiltration was identified on a subset of...