Headline
Microsoft Releases Patches for 74 New Vulnerabilities in August Update
Microsoft has patched a total of 74 flaws in its software as part of the company’s Patch Tuesday updates for August 2023, down from the voluminous 132 vulnerabilities the company fixed last month. This comprises six Critical and 67 Important security vulnerabilities. Also released by the tech giant are two defense-in-depth updates for Microsoft Office (ADV230003) and the Memory Integrity System
Software Security / Vulnerability
Microsoft has patched a total of 74 flaws in its software as part of the company’s Patch Tuesday updates for August 2023, down from the voluminous 132 vulnerabilities the company fixed last month.
This comprises six Critical and 67 Important security vulnerabilities. Also released by the tech giant are two defense-in-depth updates for Microsoft Office (ADV230003) and the Memory Integrity System Readiness Scan Tool (ADV230004).
This is in addition to 31 issues addressed by Microsoft in its Chromium-based Edge browser since last month’s Patch Tuesday edition and one side-channel flaw impacting certain processor models offered by AMD (CVE-2023-20569 or Inception).
ADV230003 concerns an already known security flaw tracked as CVE-2023-36884, a remote code execution vulnerability in Office and Windows HTML that has been actively exploited by the Russia-linked RomCom threat actor in attacks targeting Ukraine as well as pro-Ukraine targets in Eastern Europe and North America.
Microsoft said that installing the latest update “stops the attack chain” leading to the remote code execution bug.
The other defense-in-depth update for the Memory Integrity System Readiness scan tool, which is used to check for compatibility issues with memory integrity (aka hypervisor-protected code integrity or HVCI), takes care of a publicly known bug wherein the “original version was published without a RSRC section, which contains resource information for a module.”
Also patched by the tech giant are numerous remote code execution flaws in Microsoft Message Queuing (MSMQ) and Microsoft Teams as well as a number of spoofing vulnerabilities in Azure Apache Ambari, Azure Apache Hadoop, Azure Apache Hive, Azure Apache Oozie, Azure DevOps Server, Azure HDInsight Jupyter, and .NET Framework.
On top of that, Redmond has resolved six denial-of-service (DoS) and two information disclosure flaws in MSMQ, and follows a number of other problems discovered in the same service that could result in remote code execution and DoS.
Three other vulnerabilities of note are CVE-2023-35388, CVE-2023-38182 (CVSS scores: 8.0), and CVE-2023-38185 (CVSS score: 8.8) – remote code execution flaws in Exchange Server – the first two of which have been tagged with an “Exploitation More Likely” assessment.
“The exploitation of CVE-2023-35388 and CVE-2023-38182 is somewhat restricted because of the need for an adjacent attack vector and valid exchange credentials,” Natalie Silva, lead content engineer at Immersive Labs, said.
“This means the attacker needs to be connected to your internal network and be able to authenticate as a valid Exchange user before they can exploit these vulnerabilities. Any person who achieves this can carry out remote code execution using a PowerShell remoting session.”
Microsoft further acknowledged the availability of a proof-of-concept (PoC) exploit for a DoS vulnerability in .NET and Visual Studio (CVE-2023-38180, CVSS score: 7.5), noting that the “code or technique is not functional in all situations and may require substantial modification by a skilled attacker.”
Lastly, the update also includes patches for five privilege escalation flaws in the Windows Kernel (CVE-2023-35359, CVE-2023-35380, CVE-2023-35382, CVE-2023-35386, and CVE-2023-38154, CVSS scores: 7.8) that could be weaponized by a threat actor with local access to the target machine to gain SYSTEM privileges.
Software Patches from Other Vendors
In addition to Microsoft, security updates have also been released by other vendors over the past several weeks to rectify several vulnerabilities, including —
- Adobe
- AMD
- Android
- Apache Projects
- Aruba Networks
- Cisco
- Citrix
- CODESYS
- Dell
- Drupal
- F5
- Fortinet
- GitLab
- Google Chrome
- Hitachi Energy
- HP
- IBM
- Intel
- Ivanti
- Jenkins
- Lenovo
- Linux distributions Debian, Oracle Linux, Red Hat, SUSE, and Ubuntu
- MediaTek
- Mitsubishi Electric
- Mozilla Firefox, Firefox ESR, and Thunderbird
- NVIDIA
- PaperCut
- Qualcomm
- Samba
- Samsung
- SAP
- Schneider Electric
- Siemens
- SolarWinds
- Splunk
- Synology
- Trend Micro
- Veritas
- VMware
- Zimbra
- Zoho ManageEngine
- Zoom, and
- Zyxel
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The only vulnerability Microsoft states is being exploited in the wild is CVE-2023-38180, a denial-of-service vulnerability in .NET and Microsoft Visual Studio.
The only vulnerability Microsoft states is being exploited in the wild is CVE-2023-38180, a denial-of-service vulnerability in .NET and Microsoft Visual Studio.
The only vulnerability Microsoft states is being exploited in the wild is CVE-2023-38180, a denial-of-service vulnerability in .NET and Microsoft Visual Studio.
The only vulnerability Microsoft states is being exploited in the wild is CVE-2023-38180, a denial-of-service vulnerability in .NET and Microsoft Visual Studio.
The only vulnerability Microsoft states is being exploited in the wild is CVE-2023-38180, a denial-of-service vulnerability in .NET and Microsoft Visual Studio.
The only vulnerability Microsoft states is being exploited in the wild is CVE-2023-38180, a denial-of-service vulnerability in .NET and Microsoft Visual Studio.
The only vulnerability Microsoft states is being exploited in the wild is CVE-2023-38180, a denial-of-service vulnerability in .NET and Microsoft Visual Studio.
The only vulnerability Microsoft states is being exploited in the wild is CVE-2023-38180, a denial-of-service vulnerability in .NET and Microsoft Visual Studio.
.NET and Visual Studio Denial of Service Vulnerability
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Microsoft Exchange Server Remote Code Execution Vulnerability
Windows Kernel Elevation of Privilege Vulnerability
Windows Kernel Elevation of Privilege Vulnerability
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Windows Kernel Elevation of Privilege Vulnerability
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Categories: Business Tags: microsoft Tags: zero-day Tags: exploit Tags: CVE-2023-36884 Tags: storm-0978 Tags: email Tags: phish Tags: phishing Tags: Ukraine We take a look at reports of an exploit being deployed via booby trapped Word documents. (Read more...) The post Zero-day deploys remote code execution vulnerability via Word documents appeared first on Malwarebytes Labs.
Microsoft on Tuesday released updates to address a total of 130 new security flaws spanning its software, including six zero-day flaws that it said have been actively exploited in the wild. Of the 130 vulnerabilities, nine are rated Critical and 121 are rated Important in severity. This is in addition to eight flaws the tech giant patched in its Chromium-based Edge browser towards the end of
Categories: Exploits and vulnerabilities Categories: News Tags: Microsoft Tags: Adobe Tags: Apple Tags: Android Tags: Cisco Tags: Fortinet Tags: MOVEit Tags: Mozilla Tags: SAP Tags: VMware Tags: CVE-2023-32049 Tags: CVE-2023-35311 Tags: CVE-2023-32046 Tags: CVE-2023-36874 Tags: CVE-2023-36844 For the July 2023 Patch Tuesday, Microsoft has issued security updates for 130 vulnerabilities, four of which are known to have been actively exploited. (Read more...) The post Update now! Microsoft patches a whopping 130 vulnerabilities appeared first on Malwarebytes Labs.
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Microsoft is investigating reports of a series of remote code execution vulnerabilities impacting Windows and Office products. Microsoft is aware of targeted attacks that attempt to exploit these vulnerabilities by using specially-crafted Microsoft Office documents. An attacker could create a specially crafted Microsoft Office document that enables them to perform remote code execution in the context of the victim. However, an attacker would have to convince the victim to open the malicious file. Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This might include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs. Please see the Microsoft Threat Intelligence Blog https://aka.ms/Storm-0978 Entry for important information about steps you can take to protect your system from this vulnerability. This CVE will be updated with new inform...