Microsoft Patch Tuesday, August 2022 Version – Krebs on Safety


Microsoft as we speak launched updates to repair a file 141 safety vulnerabilities in its Home windows working techniques and associated software program. As soon as once more, Microsoft is patching a zero-day vulnerability within the Microsoft Assist Diagnostics Software (MSDT), a service constructed into Home windows. Redmond additionally addressed a number of flaws in Trade Server — together with one which was disclosed publicly previous to as we speak — and it’s urging organizations that use Trade for e-mail to replace as quickly as attainable and to allow extra protections.

In June, Microsoft patched a vulnerability in MSDT dubbed “Follina” that had been utilized in energetic assaults for no less than three months prior. This newest MSDT bug — CVE-2022-34713 — is a distant code execution flaw that requires convincing a goal to open a booby-trapped file, similar to an Workplace doc. Microsoft this month additionally issued a distinct patch for an additional MSDT flaw, tagged as CVE-2022-35743.

The publicly disclosed Trade flaw is CVE-2022-30134, which is an info disclosure weak spot. Microsoft additionally launched fixes for 3 different Trade flaws that rated a “vital” label, which means they may very well be exploited remotely to compromise the system and with no assist from customers. Microsoft says addressing a few of the Trade vulnerabilities mounted this month requires directors to allow Home windows Prolonged safety on Trade Servers. See Microsoft’s weblog put up on the Trade Server updates for extra particulars.

“In case your group runs native alternate servers, this trio of CVEs warrant an pressing patch,” mentioned Kevin Breen, director of cyber menace analysis for Immerse Labs. “Exchanges may be treasure troves of knowledge, making them priceless targets for attackers. With CVE-2022-24477, for instance, an attacker can achieve preliminary entry to a consumer’s host and will take over the mailboxes for all alternate customers, sending and studying emails and paperwork. For attackers centered on Enterprise E mail Compromise this sort of vulnerability may be extraordinarily damaging.”

The opposite two vital Trade bugs are tracked as CVE-2022-24516 and CVE-2022-21980. It’s troublesome to imagine it’s solely been a bit greater than a yr since malicious hackers worldwide pounced in a bevy of zero-day Trade vulnerabilities to remotely compromise the e-mail techniques for lots of of 1000’s of organizations working Trade Server regionally for e-mail. That lingering disaster is reminder sufficient that vital Trade bugs deserve speedy consideration.

The SANS Web Storm Heart‘s rundown on Patch Tuesday warns {that a} vital distant code execution bug within the Home windows Level-to-Level Protocol (CVE-2022-30133) might turn out to be “wormable” — a menace able to spreading throughout a community with none consumer interplay.

“One other vital vulnerability price mentioning is an elevation of privilege affecting Lively Listing Area Providers (CVE-2022-34691),” SANS wrote. “In keeping with the advisory, ‘An authenticated consumer might manipulate attributes on pc accounts they personal or handle, and purchase a certificates from Lively Listing Certificates Providers that may permit elevation of privilege to System.’ A system is susceptible provided that Lively Listing Certificates Providers is working on the area. The CVSS for this vulnerability is 8.8.”

Breen highlighted a set of 4 vulnerabilities in Visible Studio that earned Microsoft’s less-dire “necessary” score however that nonetheless may very well be vitally necessary for the safety of developer techniques.

“Builders are empowered with entry to API keys and deployment pipelines that, if compromised, may very well be considerably damaging to organizations,” he mentioned. “So it’s no shock they’re typically focused by extra superior attackers. Patches for his or her instruments shouldn’t be ignored. We’re seeing a continued development of supply-chain compromise too, making it very important that we guarantee builders, and their instruments, are saved up-to-date with the identical rigor we apply to straightforward updates.”

Greg Wiseman, product supervisor at Rapid7, pointed to an attention-grabbing bug Microsoft patched in Home windows Whats up, the biometric authentication mechanism for Home windows 10.  Microsoft notes that the profitable exploitation of the weak spot requires bodily entry to the goal system, however would permit an attacker to bypass a facial recognition verify.

Wiseman mentioned regardless of the file variety of vulnerability fixes from Redmond this month, the numbers are barely much less dire.

“20 CVEs have an effect on their Chromium-based Edge browser and 34 have an effect on Azure Web site Restoration (up from 32 CVEs affecting that product final month),” Wiseman wrote. “As normal, OS-level updates will handle plenty of these, however notice that some additional configuration is required to totally defend Trade Server this month.”

Because it typically does on Patch Tuesday, Adobe has additionally launched safety updates for a lot of of its merchandise, together with Acrobat and Reader, Adobe Commerce and Magento Open Supply. Extra particulars right here.

Please think about backing up your system or no less than your necessary paperwork and knowledge earlier than making use of system updates. And for those who run into any issues with these updates, please drop a notice about it right here within the feedback.


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