Latest cybersecurity reporting from selected sources.

Report Reveals Growing Trend of Fraudsters Intercepting SMS-Based VerificationFinancial institutions have historically relied on one-time passcodes as a primary authentication control for their accountholders. But OTP verification is less reliable as fraudsters increasingly exploit SMS-based verification weaknesses to carry out account takeover and payment fraud schemes.

Seeking to Add Urgency, Mandiant Publishes Rainbow Tables for NTLM Key HashesFor nearly 30 years, security experts have warned organizations to ditch the weak NTLM authentication protocol in Windows. But its use persists, even amidst easy and active exploits. Now Google has published rainbow tables for NTLMv1. Will this finally drive holdout organizations to change?

Sophisticated Voice Phishing Campaigns Don't Exploit Any Software VulnerabilitiesAmidst persistent voice phishing campaigns designed to trick employees and steal sensitive corporate data, security experts recommend organizations deploy phishing-resistant multifactor authentication, monitor for attacks and use "live video verification" to safeguard authentication changes.

Telnet Flaw Allows Unauthenticated Users to Gain Root AccessHackers are on the hunt for open telnet ports in servers after discovering that a version of legacy client-server application protocol is vulnerable to an authentication bypass vulnerability. More than 800,000 servers could be actively targeted in the wild.

Attackers Read Server Files and Steal Credentials in Gladinet CentreStack, TriofoxHackers are exploiting a flaw allowing them to access without authentication document root folder files in file-sharing and remote-access software, where they obtain access tokens and passwords to unlock remote access to corporate file systems, warn researchers.

Attackers Read Server Files and Steal Credentials in Gladinet CentreStack, TriofoxHackers are exploiting a flaw allowing them to access without authentication document root folder files in file-sharing and remote-access software, where they obtain access tokens and passwords to unlock remote access to corporate file systems, warn researchers.

Microsoft Issuing Emergency Patches to Combat Authentication-Bypassing AttacksHackers have been exploiting a zero-day vulnerability dubbed "ToolShell" in on-premises installations of Microsoft SharePoint to gain remote access, and steal cryptographic keys and data. As Microsoft rolls out patches, experts warn administrators to also rotate keys, to help eject attackers.

PoisonSeed Threat Actor Uses Cross-Device Login Feature and QR Code to Trick UsersExpel researchers have found a novel adversary-in-the-middle phishing technique used by PoisonSeed, a cybercrime group previously tied to large-scale cryptocurrency thefts, to sidestep one of the most secure forms of multifactor authentication - FIDO2 physical keys.

Citrix Issues Patches to Counter Active Attacks Against Two Critical VulnerabilitiesAdministrators of Citrix Netscaler devices are being urged to immediately patch their devices to fix two actively exploited vulnerabilities. One, dubbed Citrix Bleed 2, can be abused by hackers to bypass multifactor authentication, hijack user sessions and gain unauthorized access to the equipment.

Surge in Attack Attempts Spotted After Palo Alto Networks Details and Patches FlawAttackers have stepped up efforts to exploit a vulnerability in the software that runs Palo Alto Networks firewall appliances that could give them direct access to the underlying software. Unauthenticated hackers could use PHP scripts to bypass the PAN-OS management web interface.

3,000 Exposed ASP.NET Keys Put Web Applications at Risk of Code Injection AttacksThreat actors are using publicly exposed cryptographic keys - ASP.NET machine keys - to manipulate authentication tokens, decrypt protected information, and insert harmful code into susceptible web servers, creating opportunities for unauthorized control and long-term access.

Progress Software: 'Newly Disclosed Third-Party Vulnerability Introduces New Risk'Hackers jumped on a new flaw in Progress Software's MOVEit managed file transfer application just hours after maker Progress Software publicly disclosed the critical flaw, which allowsattackers to bypass authentication. Customers of the Massachusetts company are no strangers to emergency patching.

Users Advised to Prioritize Patching for Publicly Known Flaws, ExploitTwo critical vulnerabilities affecting all on-premises versions of TeamCity servers can result in authentication bypass and path traversal, enabling an attacker to gain administrative privileges for a server and take it over. Users should prioritize patching now that the exploit is public.