.NET is Microsoft's software development platform, and flaws in its runtimes or libraries can expose applications and services to attack.
Search across headline titles and summaries.
Background for this topic.
.NET is Microsoft’s software-development platform: a runtime, standard libraries, language support, and application frameworks used to build web services, APIs, desktop software, and other applications. The name covers modern, cross-platform .NET as well as the older Windows-focused .NET Framework, which have different release and support paths and should be distinguished during vulnerability management.
Security exposure can arise in the runtime, ASP.NET request-handling components, application configuration, and third-party NuGet packages. Vulnerabilities may enable code execution, denial of service, or unauthorized access when affected components are reachable or incorrectly used; insecure deserialization and weak authentication or authorization are recurring application-level concerns. Operators should inventory the exact runtime and framework versions, apply supported security updates, monitor transitive dependencies, and remove obsolete components. Developers should use platform-provided cryptography and TLS appropriately, validate untrusted input, protect secrets outside source code, and configure authentication and authorization explicitly.
Weekly headline count for the current query.
Cybersecurity researchers have flagged an active browser extension campaign that is designed to steal cryptocurrency by stealthily replacing wallet addresses when unsuspecting users initiate a transaction
The Russian state-sponsored threat actor known as Turla has been attributed to a previously undocumented .NET backdoor called STOCKSTAY that has been deployed against government and military organizations in Ukraine, and entities that have an interest in Italian foreign policy
Cybersecurity researchers have flagged a new malspam campaign that makes use of Google's DoubleClick domain as a way to evade detection and ultimately deliver an unidentified .NET-based loader
Microsoft exposes a cryptojacking campaign using SEO poisoning and ScreenConnect to target high-performance PCs, with malicious sites also surfaced through AI chatbots. The post From poisoned search results to GPU mining: A cryptojacking campaign abusing ScreenConnect and Microsoft .NET utilities appeared first on Microsoft Security Blog.
Phantom Stealer .NET harvests browser credentials, cookies, cards, sessions, as stealer-as-a-service
Cybersecurity researchers have discovered a remote access toolkit of Russian-origin that's distributed via malicious Windows shortcut (LNK) files that are disguised as private key folders
Cybersecurity researchers have disclosed details of a new malicious package discovered on the NuGet Gallery, impersonating a library from financial services firm Stripe in an attempt to target the financial sector
Cybersecurity researchers have discovered four malicious NuGet packages that are designed to target ASP.NET web application developers to steal sensitive data
Widely Used ukr.net Is a Repeat Focus for APT28 Cyberespionage OperationsDon't expect cyber spies to respect distinctions between military and civilian networks, especially in times of war, warn researchers tracking persistent Russian military intelligence credential-harvesting attacks against users of Ukraine's popular, commercial UKR.NET webmail platform.
The Russian state-sponsored threat actor known as APT28 has been attributed to what has been described as a "sustained" credential-harvesting campaign targeting users of UKR[.]net, a webmail and news service popular in Ukraine
You can improve the odds by combining skepticism, verification habits, and a few technical checks Opinion Liars, cranks, and con artists have always been with us. It's just that nowadays their reach has gone from the local pub to the globe.…
PLUS: India’s tech services exports growing fast; South Korea puts the bite on TXT spam; NTT gets into autonomous vehicles; and more! Asia In Brief Chinese infosec blog MXRN last week reported a data breach at a security company called Knownsec that has ties to Beijing and Chinas military.…
QNAP warned customers to patch a critical ASP.NET Core vulnerability that also impacts the company's NetBak PC Agent, a Windows utility for backing& up data to a QNAP network-attached storage (NAS) device. [...]
Earlier this week, Microsoft patched a vulnerability that was flagged with the "highest ever" severity rating received by an ASP.NET Core security flaw. [...]
Flaw in Kestrel web server allowed request smuggling, impact depends on hosting setup and application code Microsoft has patched an ASP.NET Core vulnerability with a CVSS score of 9.9, which security program manager Barry Dorrans said was "our highest ever." The flaw is in the Kestrel web server component and enables security bypass.…
Juvenile Male Tied to Hack Attacks Against MGM Resorts and Caesars EntertainmentThe net continues to close on suspected members of the notorious ransomware-wielding group called Scattered Spider, with Las Vegas police announcing the arrest of a teenage, juvenile male suspect tied to 2023 attacks that hit MGM Resorts and Caesars Entertainment.
Popular npm packages debug, chalk, and others hijacked in massive supply chain attack Crims have added backdoors to at least 18 npm packages after developer Josh Junon inadvertently authorized a reset of the two-factor authentication protecting his npm account.…
The vulnerability marks the latest example of threat actors weaponizing exposed ASP.NET machine keys for remote injection and deserialization attacks.
The campaign shows APT29’s intentions to “cast a wider net in their intelligence collection efforts,” said Amazon
Microsoft has expanded its .NET bug bounty program and increased rewards to $40,000 for some .NET and ASP.NET Core vulnerabilities. [...]