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Microsoft Warns of New Zero-Day; No Repair But For Exploited Trade Server Flaws

By Ryan Naraine on October 11, 2022

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Microsoft on Tuesday launched software program fixes to handle greater than 90 safety defects affecting merchandise within the Home windows ecosystem and warned that one of many vulnerabilities was already being exploited as zero-day within the wild.

The exploited vulnerability – documented as CVE-2022-41033 – impacts the Home windows COM+ occasion system service and has been exploited in elevation of privilege assaults, suggesting it was used as a part of an exploit chain detected within the wild.

The most recent zero-day was reported anonymously to Microsoft.

The brand new warning comes lower than a month after Microsoft’s safety response staff scrambled to situation mitigations for a pair of Trade Server flaws focused by a nation state-level menace actor.

These two Trade Server vulnerabilities – CVE-2022-41040 and CVE-2022-21082 — stay unpatched.

[ READ: Patch Tuesday: Vital Flaws in ColdFusion, Adobe Commerce ]

The existence of the Trade Server vulnerabilities turned public in late September, when Vietnamese cybersecurity firm GTSC reported seeing two beforehand unknown Trade flaws being exploited in August towards vital infrastructure.  

Microsoft carried out its personal evaluation and decided {that a} single state-sponsored menace actor has exploited the zero-days in extremely focused assaults aimed toward fewer than 10 organizations. 

The unpatched flaws are documented as a server-side request forgery (SSRF) situation that may be exploited for privilege escalation (CVE-2022-41040) and a distant code execution flaw when PowerShell is accessible to the attacker (CVE-2022-41082). 

Redmond didn’t present a timeline for when Home windows customers can anticipate the Trade Server fixes.  

As a part of the October batch of Patch Tuesday updates, Redmond documented 85 safety defects in Microsoft Home windows and working system elements and a dozen flaws addressed within the Microsoft Edge (Chromium-based) browser.

[ READ: Microsoft Confirms Exploitation of Two Exchange Server Zero-Days ]

Based on vulnerability trackers at ZDI, 15 of the 85 vulnerabilities are rated vital, Microsoft’s highest severity score.  The critical-level points have an effect on Energetic Listing, Azure, Microsoft Workplace, SharePoint, Hyper-V and the Home windows Level-to-Level tunneling protocol.

Silicon Valley software program maker Adobe additionally joined the Patch Tuesday practice with the discharge of patches for 29 documented vulnerabilities throughout a number of enterprise-facing merchandise.

Adobe warned the vulnerabilities may expose each Home windows and macOS customers to arbitrary code execution, arbitrary file system write, safety characteristic bypass and privilege escalation assaults.

Probably the most pressing of the patches cowl safety defects in ColdFusion variations 2021 and 2018.  Based on an Adobe critical-rated advisory, a complete of 13 ColdFusion flaws had been mounted, together with some carrying a CVSS 9.8/10 severity score.

Adobe’s safety response staff additionally shipped a high-priority patch for the Adobe Commerce and Magento Open Supply software program with a warning {that a} critical-level bug may expose customers to arbitrary code execution assaults.

Associated: Patch Tuesday: Vital Flaws in ColdFusion, Adobe Commerce

Associated: Microsoft Hyperlinks Exploitation of Trade Zero-Days to State-Sponsored Hackers

Associated: Mitigation for ProxyNotShell Trade Vulnerabilities Simply Bypassed 

Associated: Microsoft Confirms Exploitation of Two Trade Server Zero-Days

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