Security News
Over the six-month period from March to August 2020, over 925,000 malicious emails managed to bypass Office 365 defenses and well-known secure email gateways, an Area 1 Security study reveals. Attackers increasingly use highly sophisticated, targeted campaigns like business email compromise to evade traditional email defenses, which are based on already-known threats.
Hewlett Packard Enterprise has fixed a maximum severity remote authentication bypass vulnerability affecting the company's HPE StoreServ Management Console data center storage management solution. HPE SSMC is a management and reporting console for HPE Primera and HPE 3PAR StoreServ systems data center arrays.
Microsoft has added a new Windows 10 group policy that allows users to bypass safeguard holds placed on devices due to conflicts with hardware or software. A safeguard hold is when Microsoft prevents devices from being offered a new Windows 10 feature update if there are known compatibility issues with hardware, software, or settings.
Bugs in the multi-factor authentication system used by Microsoft's cloud-based office productivity platform, Microsoft 365, opened the door for hackers to access cloud applications via a bypass of the security system, according to researchers at Proofpoint. The flaws exist in the implementation of what is called the WS-Trust specification in cloud environments where WS-Trust is enabled and used with Microsoft 365, formerly called Office 365.
Some information needs to be leaked from the kernel that reveals the current layout of its components in RAM. If a ROP exploit just guesses the kernel's layout and is wrong, it will trigger a crash, and this can be detected and acted on by an administrator. "Using speculative execution for crash suppression allows the elevation of basic memory write vulnerabilities into powerful speculative probing primitives that leak through microarchitectural side effects," the paper stated.
All modern contactless cards that make use of the Visa protocol, including Visa Credit, Visa Debit, Visa Electron, and V Pay cards, are affected by the security flaw, but the researchers posited it could apply to EMV protocols implemented by Discover and UnionPay as well. As a result, the Card Transaction Qualifiers used to determine what CVM check, if any, is required for the transaction can be modified to inform the PoS terminal to override the PIN verification and that the verification was carried out using the cardholder's device such as a smartwatch or smartphone.
Calling a patch for the flaw a "Fail" and "Inadequate in blocking exploitation," Austin-based security researcher Amir Etemadieh published details and examples of exploit code on three developer platforms- Bash, Python and Ruby-for the patch in a post published Sunday night. The key problem with the patch issued for the zero day is related to how the vBulletin template system is structured and how it uses PHP, he wrote in the post.
Cybersecurity researchers on Monday disclosed details about a zero-day flaw in Chromium-based web browsers for Windows, Mac and Android that could have allowed attackers to entirely bypass Content Security Policy rules since Chrome 73. Tracked as CVE-2020-6519, the issue stems from a CSP bypass that results in arbitrary execution of malicious code on target websites.
While brute-forcing and password spraying techniques are the most common way to mount account takeovers, more methodical cybercriminals are able to gain access to accounts even with more secure MFA protocols in place. According to Abnormal Security, cybercriminals are zeroing in on email clients that don't support modern authentication, such as mobile email clients; and legacy email protocols, including IMAP, SMTP, MAPI and POP. Thus, even if MFA is enabled on the corporate email account, an employee checking email via mobile won't be subject to that protection.
Adding insult to injury, researchers have recently discovered a workaround for a previous patch issued for Microsoft Teams, that would allow a malicious actor to use the service's updater function to download any binary or malicious payload. Essentially, bad actors could hide in Microsoft Teams updater traffic, which has lately been voluminous. While Microsoft tried to cut off this vector as a conduit for remote code execution by restricting the ability to update Teams via a URL, it was not a complete fix, the researcher explained.