Catégorie : Sécurité

Le secteur des télécommunications intègre une typologie d’acteurs variée allant des opérateurs de communication électroniques (OCE) aux …

The U.S. Federal Bureau of Investigation (FBI) disclosed today that it infiltrated the world’s second most prolific ransomware gang, a Russia-based criminal group known as ALPHV and BlackCat. The FBI said it seized the gang’s darknet website, and released a decryption tool that hundreds of victim companies can use to recover systems. Meanwhile, BlackCat responded by briefly “unseizing” its darknet site with a message promising 90 percent commissions for affiliates who continue to work with the crime group, and open season on everything from hospitals to nuclear power plants. A slightly modified version of the FBI seizure notice on the BlackCat darknet site (Santa caps added). Whispers of a possible law enforcement action against BlackCat came in the first week of December, after the ransomware group’s darknet site went offline…

Une vulnérabilité a été découverte dans Stormshield Network VPN Client. Elle permet à un attaquant de provoquer une élévation de privilèges.

Une vulnérabilité a été découverte dans SPIP. Elle permet à un attaquant de provoquer une injection de code indirecte à distance (XSS) et un problème de sécurité non spécifié par l'éditeur.

De multiples vulnérabilités ont été découvertes dans OpenSSH. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une atteinte à l'intégrité des données, un déni de service à distance et un contournement de la politique de sécurité.

De multiples vulnérabilités ont été découvertes dans Zimbra Collaboration. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur, une atteinte à l'intégrité des données et une atteinte à la confidentialité des données.

The U.S. Federal Bureau of Investigation (FBI) disclosed today that it infiltrated the world’s second most prolific ransomware gang, a Russia-based criminal group known as ALPHV and BlackCat. The FBI said it seized the gang’s darknet website, and released a decryption tool that hundreds of victim companies can use to recover systems. Meanwhile, BlackCat responded by briefly “unseizing” its darknet site with a message promising 90 percent commissions for affiliates who continue to work with the crime group, and open season on everything from hospitals to nuclear power plants. A slightly modified version of the FBI seizure notice on the BlackCat darknet site (Santa caps added). Whispers of a possible law enforcement action against BlackCat came in the first week of December, after the ransomware group’s darknet site went offline…

One of the cybercrime underground’s more active sellers of Social Security numbers, background and credit reports has been pulling data from hacked accounts at the U.S. consumer data broker USinfoSearch, KrebsOnSecurity has learned. Since at least February 2023, a service advertised on Telegram called USiSLookups has operated an automated bot that allows anyone to look up the SSN or background report on virtually any American. For prices ranging from $8 to $40 and payable via virtual currency, the bot will return detailed consumer background reports automatically in just a few moments. USiSLookups is the project of a cybercriminal who uses the nicknames JackieChan/USInfoSearch, and the Telegram channel for this service features a small number of sample background reports, including that of President Joe Biden, and podcaster Joe Rogan. The data…

Prosecutors in Finland this week commenced their criminal trial against Julius Kivimäki, a 26-year-old Finnish man charged with extorting a once popular and now-bankrupt online psychotherapy practice and thousands of its patients. In a 2,200-page report, Finnish authorities laid out how they connected the extortion spree to Kivimäki, a notorious hacker who was convicted in 2015 of perpetrating tens of thousands of cybercrimes, including data breaches, payment fraud, operating a botnet and calling in bomb threats. In November 2022, Kivimäki was charged with attempting to extort money from the Vastaamo Psychotherapy Center. In that breach, which occurred in October 2020, a hacker using the handle “Ransom Man” threatened to publish patient psychotherapy notes if Vastaamo did not pay a six-figure ransom demand. Vastaamo refused, so Ransom Man shifted to extorting…

Microsoft today released updates to fix more than five dozen security holes in its Windows operating systems and related software, including three “zero day” vulnerabilities that Microsoft warns are already being exploited in active attacks. The zero-day threats targeting Microsoft this month include CVE-2023-36025, a weakness that allows malicious content to bypass the Windows SmartScreen Security feature. SmartScreen is a built-in Windows component that tries to detect and block malicious websites and files. Microsoft’s security advisory for this flaw says attackers could exploit it by getting a Windows user to click on a booby-trapped link to a shortcut file. Kevin Breen, senior director of threat research at Immersive Labs, said emails with .url attachments or logs with processes spawning from .url files “should be a high priority for threat hunters…