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Somehow, we’ve made it to the sixth patch Tuesday of 2024, and Microsoft and Adobe have released their regularly scheduled updates. Take a break from your regular activities and join us as we review the details of their latest security alerts. If you’d rather watch the full video recap covering the entire release, you can check it out here:

Adobe Patches for June 2024

For June, Adobe released 10 patches addressing 165(!) CVEs in Adobe Cold Fusion, Photoshop,  Experience Manager, Audition, Media Encoder, FrameMaker Publishing Server, Adobe Commerce, Substance 3D Stager, Creative Cloud Desktop, and Acrobat Android. The fix for Experience Manager is by far the largest with a whopping 143 CVEs addressed. However, all but one of these bugs are simply cross-site scripting (XSS) vulnerabilities. The patch for Cold Fusion fixes two bugs, but neither are code execution bugs. That’s the same case for the patch addressing bugs in Audition. The fix for Media Encoder has a single OOB Read memory leak fixed. The update for Photoshop also has just one bug – a Critical-rated code execution issue. That’s also the story for the Substance 3D Stager patch.

The patch for FrameMaker Publishing Server has only two bugs, but one is a CVSS 10 and the other is a 9.8. If you’re using this product, this should be the first patch you test and deploy. The patch for Commerce should also be high on your test-and-deploy list as it corrects 10 bugs, including some Critical-rated code execution vulns. The patch for Creative Cloud Desktop fixes a single code execution bug. Finally, the patch for Acrobat Android corrects two security feature bypasses.

None of the bugs fixed by Adobe this month are listed as publicly known or under active attack at the time of release. Adobe categorizes these updates as a deployment priority rating of 3.

Microsoft Patches for June 2024

This month, Microsoft released 49 CVEs in Windows and Windows Components; Office and Office Components; Azure; Dynamics Business Central; and Visual Studio. If you include the third-party CVEs being documented this month, the CVE count comes to 58. A total of eight of these bugs came through the ZDI program, and that does include some of the cases reported during the Pwn2Own Vancouver contest in March.

Of the new patches released today, only one is rated Critical, and 48 are rated Important in severity. This release is another small release when compared to the monster that was April.

Only one of the CVEs listed today is listed as publicly known, but that’s actually just a third-party update that’s now being integrated into Microsoft products. Nothing is listed as being under active attack. Let’s take a closer look at some of the more interesting updates for this month, starting with the lone Critical-rated patch for this month:

-       CVE-2024-30080 – Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
This update receives a CVSS rating of 9.8 and would allow remote, unauthenticated attackers to execute arbitrary code with elevated privileges of systems where MSMQ is enabled. That makes this wormable between those servers, but not to systems where MSMQ is disabled. This is similar to the “QueueJumper” vulnerability from last year, but it’s not clear how many affected systems are exposed to the internet. While it is likely a low number, now would be a good time to audit your networks to ensure TCP port 1801 is not reachable.  

-       CVE-2024-30103 – Microsoft Outlook Remote Code Execution Vulnerability
This patch corrects a bug that allows attackers to bypass Outlook registry block lists and enable the creation of malicious DLL files. While not explicitly stated, attackers would likely then use the malicious DLL files to perform some form of DLL hijacking for further compromise. The good news here is that the attacker would need valid Exchange credentials to perform this attack. The bad news is that the exploit can occur in the Preview Pane. Considering how often credentials end up being sold in underground forums, I would not ignore this fix.  

-       CVE-2024-30078 – Windows Wi-Fi Driver Remote Code Execution Vulnerability
This vulnerability allows an unauthenticated attacker to execute code on an affected system by sending the target a specially crafted network packet. Obviously, the target would need to be in Wi-Fi range of the attacker and using a Wi-Fi adapter, but that’s the only restriction. Microsoft rates this as “exploitation less likely” but considering it hits every supported version of Windows, it will likely draw a lot of attention from attackers and red teams alike.

Here’s the full list of CVEs released by Microsoft for June 2024:

CVE Title Severity CVSS Public Exploited Type CVE-2024-30080 Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability Critical 9.8 No No RCE CVE-2024-35255 Azure Identity Libraries and Microsoft Authentication Library Elevation of Privilege Vulnerability Important 5.5 No No EoP CVE-2024-35254 † Azure Monitor Agent Elevation of Privilege Vulnerability Important 7.1 No No EoP CVE-2024-37325 † Azure Science Virtual Machine (DSVM) Elevation of Privilege Vulnerability Important 9.8 No No EoP CVE-2024-35252 Azure Storage Movement Client Library Denial of Service Vulnerability Important 7.5 No No DoS CVE-2024-30070 DHCP Server Service Denial of Service Vulnerability Important 7.5 No No DoS CVE-2024-29187 * GitHub: CVE-2024-29187 WiX Burn-based bundles are vulnerable to binary hijack when run as SYSTEM Important 7.3 No No EoP CVE-2024-35253 Microsoft Azure File Sync Elevation of Privilege Vulnerability Important 4.4 No No EoP CVE-2024-35263 Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability Important 5.7 No No Info CVE-2024-35248 Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability Important 7.3 No No EoP CVE-2024-35249 Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability Important 8.8 No No RCE CVE-2024-30072 Microsoft Event Trace Log File Parsing Remote Code Execution Vulnerability Important 7.8 No No RCE CVE-2024-30104 Microsoft Office Remote Code Execution Vulnerability Important 7.8 No No RCE CVE-2024-30101 Microsoft Office Remote Code Execution Vulnerability Important 7.5 No No RCE CVE-2024-30102 Microsoft Office Remote Code Execution Vulnerability Important 7.3 No No RCE CVE-2024-30103 Microsoft Outlook Remote Code Execution Vulnerability Important 8.8 No No RCE CVE-2024-30100 Microsoft SharePoint Server Remote Code Execution Vulnerability Important 7.8 No No RCE CVE-2024-30097 Microsoft Speech Application Programming Interface (SAPI) Remote Code Execution Vulnerability Important 8.8 No No RCE CVE-2024-30089 Microsoft Streaming Service Elevation of Privilege Vulnerability Important 7.8 No No EoP CVE-2024-30090 Microsoft Streaming Service Elevation of Privilege Vulnerability Important 7 No No EoP CVE-2023-50868 * MITRE: CVE-2023-50868 NSEC3 closest encloser proof can exhaust CPU Important 7.5 Yes No DoS CVE-2024-29060 Visual Studio Elevation of Privilege Vulnerability Important 6.7 No No EoP CVE-2024-30052 Visual Studio Remote Code Execution Vulnerability Important 4.7 No No RCE CVE-2024-30082 Win32k Elevation of Privilege Vulnerability Important 7.8 No No EoP CVE-2024-30087 Win32k Elevation of Privilege Vulnerability Important 7.8 No No EoP CVE-2024-30091 Win32k Elevation of Privilege Vulnerability Important 7.8 No No EoP CVE-2024-30085 Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability Important 7.8 No No EoP CVE-2024-30076 Windows Container Manager Service Elevation of Privilege Vulnerability Important 6.8 No No EoP CVE-2024-30096 Windows Cryptographic Services Information Disclosure Vulnerability Important 5.5 No No Info CVE-2024-30063 Windows Distributed File System (DFS) Remote Code Execution Vulnerability Important 6.7 No No RCE CVE-2024-30064 Windows Kernel Elevation of Privilege Vulnerability Important 8.8 No No EoP CVE-2024-30068 Windows Kernel Elevation of Privilege Vulnerability Important 8.8 No No EoP CVE-2024-30088 Windows Kernel Elevation of Privilege Vulnerability Important 7 No No EoP CVE-2024-30099 Windows Kernel Elevation of Privilege Vulnerability Important 7 No No EoP CVE-2024-35250 Windows Kernel-Mode Driver Elevation of Privilege Vulnerability Important 7.8 No No EoP CVE-2024-30084 Windows Kernel-Mode Driver Elevation of Privilege Vulnerability Important 7 No No EoP CVE-2024-30074 Windows Link Layer Topology Discovery Protocol Remote Code Execution Vulnerability Important 8 No No RCE CVE-2024-30075 Windows Link Layer Topology Discovery Protocol Remote Code Execution Vulnerability Important 8 No No RCE CVE-2024-30077 Windows OLE Remote Code Execution Vulnerability Important 8 No No RCE CVE-2024-35265 Windows Perception Service Elevation of Privilege Vulnerability Important 7 No No EoP CVE-2024-30069 Windows Remote Access Connection Manager Information Disclosure Vulnerability Important 4.7 No No Info CVE-2024-30094 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability Important 7.8 No No RCE CVE-2024-30095 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability Important 7.8 No No RCE CVE-2024-30083 Windows Standards-Based Storage Management Service Denial of Service Vulnerability Important 7.5 No No DoS CVE-2024-30062 Windows Standards-Based Storage Management Service Remote Code Execution Vulnerability Important 7.8 No No RCE CVE-2024-30093 Windows Storage Elevation of Privilege Vulnerability Important 7.3 No No EoP CVE-2024-30065 Windows Themes Denial of Service Vulnerability Important 5.5 No No DoS CVE-2024-30078 Windows Wi-Fi Driver Remote Code Execution Vulnerability Important 8.8 No No RCE CVE-2024-30086 Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability Important 7.8 No No EoP CVE-2024-30066 Winlogon Elevation of Privilege Vulnerability Important 5.5 No No EoP CVE-2024-30067 WinLogon Elevation of Privilege Vulnerability Important 5.5 No No EoP CVE-2024-5493 * Chromium: CVE-2024-5493 Heap buffer overflow in WebRTC High N/A No No RCE CVE-2024-5494 * Chromium: CVE-2024-5494 Use after free in Dawn High N/A No No RCE CVE-2024-5495 * Chromium: CVE-2024-5495 Use after free in Dawn High N/A No No RCE CVE-2024-5496 * Chromium: CVE-2024-5496 Use after free in Media Session High N/A No No RCE CVE-2024-5497 * Chromium: CVE-2024-5497 Out of bounds memory access in Keyboard Inputs High N/A No No RCE CVE-2024-5498 * Chromium: CVE-2024-5498 Use after free in Presentation API High N/A No No RCE CVE-2024-5499 * Chromium: CVE-2024-5499 Out of bounds write in Streams API High N/A No No RCE

* Indicates this CVE had been released by a third party and is now being included in Microsoft releases.

† Indicates further administrative actions are required to fully address the vulnerability.

 

Looking at the other fixes addressing code execution bugs, there are a couple that stand out. In addition to the Wi-Fi bug above, there are two similar bugs in the Link Layer Topology Discovery Protocol with similar exploit vectors. The difference is that for these two bugs, the target needs to be running the Network Map functionality for the attack to succeed. There are several “open-and-own” type vulnerabilities getting patched. The one to look out for would be the Office bug that states, “The Preview Pane is an attack vector, but additional user interaction is required.” It’s not clear how that would manifest. The exploit for DFS requires an adjacent attacker to already be executing code on a target, which reads more like an EoP to me. The OLE bug requires connecting to a malicious SQL server. The bug in the Speech Application Programming Interface (SAPI) requires a user to click a link to connect to the attacker’s server. Lastly, the code execution bug in Dynamics 365 requires authentication, which again sounds more like an EoP, but it also states no user interaction is required. It’s an odd write-up that implies it’s unlikely to be exploited in the wild.

More than half of this month’s release corrects privilege escalation bugs, but the majority of these lead to SYSTEM-level code execution if an authenticated user runs specially crafted code. Other privilege escalation bugs would allow the attacker to get to the level of the running application. The bugs in Winlogon are somewhat intriguing as they could allow an attacker to replace valid file content with specially crafted file content. One of the kernel bugs could be used for a container escape. The bug in the Perception Service could allow elevation to the “NT AUTHORITY\LOCAL SERVICE” account. The vulnerability in Visual Studio requires an attacker to create a malicious extension. An authenticated user would then need to create a Visual Studio project that uses that extension. If they manage all of that, it would lead to admin privileges.

The bug in Azure Identity Libraries and Microsoft Authentication Library allows attackers to read any file on the target with SYSTEM privileges. The privilege escalation in Azure Monitor Agent could let attackers delete files and folders. If you’ve disabled Automatic Extension Upgrades, you’ll need to perform a manual update to ensure the Monitor Agent is at the latest version. Speaking of extra actions, the bug in the Azure Science Virtual Machine (DSVM) requires you to upgrade your DSVM to Ubuntu 20.04. If you’re not familiar with this procedure, Microsoft provides this article for guidance. Attackers who exploit this bug could gain access to user credentials, which would allow them to impersonate authorized users.

There are only three information disclosure bugs receiving fixes this month and only one results in info leaks consisting of unspecified memory contents. The bug in the on prem version of Dynamics 365 could allow an attacker to exfiltrate all the data accessible to the logged-on user. The vulnerability in the Cryptographic Services could disclose sensitive information such as KeyGuard (KG) keys, which are intended to be per-boot and used to protect sensitive data. If an attacker could potentially use these to decrypt anything encrypted with those keys.

The final bugs for June address Denial-of-Service (DoS) vulnerabilities in Windows and Azure components. Unfortunately, Microsoft provides no additional information about these bugs and how they would manifest on affected systems. They do note the DoS in the DHCP Server does not affect those who have configured failover for their DHCP setup.

There are no new advisories in this month’s release.

Looking Ahead

The next Patch Tuesday of 2024 will be on July 9, and I’ll return with details and patch analysis then. Until then, stay safe, happy patching, and may all your reboots be smooth and clean!

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