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Citrix is warning of exploitation of a recently disclosed critical security flaw in NetScaler ADC and Gateway appliances that could result in exposure of sensitive information. Tracked as  CVE-2023-4966  (CVSS score: 9.4), the vulnerability impacts the following supported versions - NetScaler ADC and NetScaler Gateway 14.1 before 14.1-8.50 NetScaler ADC and NetScaler Gateway 13.1 before 13.1-49.15 NetScaler ADC and NetScaler Gateway 13.0 before 13.0-92.19 NetScaler ADC and NetScaler Gateway 12.1 (currently end-of-life) NetScaler ADC 13.1-FIPS before 13.1-37.164 NetScaler ADC 12.1-FIPS before 12.1-55.300, and NetScaler ADC 12.1-NDcPP before 12.1-55.300 However, for exploitation to occur, it requires the device to be configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or authorization and accounting (AAA) virtual server. While patches for the flaw were released on October 10, 2023, Citrix has now revised the advisory to note that "exploits of CV...

In the ever-evolving landscape of cybersecurity, attackers are always searching for vulnerabilities and exploits within organizational environments. They don't just target single weaknesses; they're on the hunt for combinations of exposures and attack methods that can lead them to their desired objective. Despite the presence of numerous security tools, organizations often have to deal with two major challenges; First, these tools frequently lack the ability to effectively prioritize threats, leaving security professionals in the dark about which issues need immediate attention. Second, these tools often fail to provide context about how individual issues come together and how they can be leveraged by attackers to access critical assets. This lack of insight can lead organizations to either attempt to fix everything or, more dangerously, address nothing at all. In this article, we delve into 7 real-life attack path scenarios that our in-house experts encountered while utiliz...

A threat actor, presumably from Tunisia, has been linked to a new campaign targeting exposed Jupyter Notebooks in a two-fold attempt to illicitly mine cryptocurrency and breach cloud environments. Dubbed  Qubitstrike  by Cado, the intrusion set utilizes Telegram API to exfiltrate cloud service provider credentials following a successful compromise. "The payloads for the Qubitstrike campaign are all hosted on codeberg.org – an alternative Git hosting platform, providing much of the same functionality as GitHub," security researchers Matt Muir and Nate Bill  said  in a Wednesday write-up. In the attack chain documented by the cloud security firm, publicly accessible Jupyter instances are breached to execute commands to retrieve a shell script (mi.sh) hosted on Codeberg. The shell script, which acts as the primary payload, is responsible for executing a cryptocurrency miner, establishing persistence by means of a cron job, inserting an attacker-controlled key to t...

Government entities in the Asia-Pacific (APAC) region are the target of a long-running cyber espionage campaign dubbed  TetrisPhantom . "The attacker covertly spied on and harvested sensitive data from APAC government entities by exploiting a particular type of secure USB drive, protected by hardware encryption to ensure the secure storage and transfer of data between computer systems," Kaspersky  said  in its APT trends report for Q3 2023. The Russian cybersecurity firm, which detected the ongoing activity in early 2023, said the USB drives offer hardware encryption and are employed by government organizations worldwide to securely store and transfer data, raising the possibility that the attacks could expand in the future to have a global footprint. The clandestine intrusion set has not been linked to any known threat actor or group, but the high-level of sophistication of the campaign points to a nation-state crew. "These operations were conducted by a highly sk...

A medium-severity flaw has been discovered in Synology's DiskStation Manager ( DSM ) that could be exploited to decipher an administrator's password and remotely hijack the account. "Under some rare conditions, an attacker could leak enough information to restore the seed of the pseudorandom number generator (PRNG), reconstruct the admin password, and remotely take over the admin account," Claroty's Sharon Brizinov  said  in a Tuesday report. The flaw, assigned the identifier CVE-2023-2729, is rated 5.9 for severity on the CVSS scoring scale. The flaw was addressed by Synology as part of  updates  released in June 2023. The problem is rooted in the fact that the software uses a weak random number generator that relies on the JavaScript  Math.random() method  to programmatically construct the admin password for the network-attached storage (NAS) device. Referred to as insecure randomness, it  arises  when a function that can produce predictab...

Taiwanese networking equipment manufacturer D-Link has confirmed a data breach that led to the exposure of what it said is "low-sensitivity and semi-public information." "The data was confirmed not from the cloud but likely originated from an old D-View 6 system, which reached its end of life as early as 2015," the company  said . "The data was used for registration purposes back then. So far, no evidence suggests the archaic data contained any user IDs or financial information." The development comes more than two weeks after an unauthorized party alleged to have stolen the personal data of many government officials in Taiwan as well as the source code for D-Link's D-View network management software in a post shared on BreachForums on October 1, 2023. D-Link, which roped in cybersecurity firm Trend Micro to probe the incident, cited numerous inaccuracies and exaggerations, stating that the breach led to the compromise of roughly 700 "outdate...

In what's the latest evolution of threat actors abusing legitimate infrastructure for nefarious ends, new findings show that nation-state hacking groups have entered the fray in leveraging the social platform for targeting critical infrastructure. Discord, in recent years, has become a lucrative target, acting as a fertile ground for  hosting malware  using its content delivery network (CDN) as well as allowing information stealers to  siphon sensitive data  off the app and  facilitating data exfiltration  by means of webhooks. "The usage of Discord is largely limited to information stealers and grabbers that anyone can buy or download from the Internet," Trellix researchers Ernesto Fernández Provecho and David Pastor Sanz  said  in a Monday report. But that may be changing, for the cybersecurity firm said it found evidence of an artifact targeting Ukrainian critical infrastructures. There is currently no evidence linking it to a known threat...