Headline
Update now! Microsoft fixes two zero-days in August's Patch Tuesday
Categories: Exploits and vulnerabilities Categories: News Tags: Microsoft
Tags: patch Tuesday
Tags: MSDT
Tags: NFS
Tags: PPP
Tags: Exchange
Tags: CVE-2022-34713
Tags: CVE-2022-35743
Tags: DogWalk
Tags: CVE-2022-30134
Tags: CVE-2022-24477
Tags: CVE-2022-24516
Tags: CVE-2022-30133
Tags: CVE-2022-34715
Tags: Adobe
Tags: Cisco
Tags: Google
Tags: Android
Tags: SAP
Tags: VMWare
Patch Tuesday for August 2022 has come around. We take a look at the most important vulnerabilities that Microsoft’s fixed and a brief look at what other vendors did.
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The post Update now! Microsoft fixes two zero-days in August’s Patch Tuesday appeared first on Malwarebytes Labs.
Microsoft has published fixes for 141 separate vulnerabilities in its batch of August updates, fixing a total of 118 CVEs in multiple products. This is a new monthly record if you look at the CVE count.
Publicly disclosed computer security flaws are listed in the Common Vulnerabilities and Exposures (CVE) database. Its goal is to make it easier to share data across separate vulnerability capabilities (tools, databases, and services). These are the CVEs that jumped out at us.
Microsoft Support Diagnostics Tool
CVE-2022-34713: is a Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution (RCE) vulnerability. This is a known to be exploited vulnerability which requires the target to open a specially crafted file. This CVE is a variant of the vulnerability publicly known as Dogwalk.
CVE-2022-35743: is another MSDT RCE vulnerability. Neither technical details nor an exploit are publicly available, but we do know that user interaction is required and the attack vector is local, so this is very likely another case where a specially crafted file needs to be opened by the victim.
Microsoft Exchange
CVE-2022-30134: is a Microsoft Exchange Information Disclosure vulnerability. This vulnerability is publicly disclosed but has not yet been detected in attacks. Affected products are Microsoft Exchange Server 2019 CU 11, Microsoft Exchange Server 2016 CU 22, Microsoft Exchange Server 2013 CU 23, Microsoft Exchange Server 2016 CU 23, and Microsoft Exchange Server 2019 CU 12. Users vulnerable to this issue would need to enable Extended Protection in order to prevent exploitation of this vulnerability. More details can be found on the Exchange Team Blog.
CVE-2022-24477: is a Microsoft Exchange Server Elevation of Privilege (EoP) vulnerability. Affected products are Microsoft Exchange Server 2016 CU 23, Microsoft Exchange Server 2019 CU 12, Microsoft Exchange Server 2019 CU 11, Microsoft Exchange Server 2016 CU 22, and Microsoft Exchange Server 2013 CU 23. Users vulnerable to this issue would need to enable Extended Protection in order to prevent exploitation of this vulnerability. More details can be found on the Exchange Team Blog.
CVE-2022-24516: is another a Microsoft Exchange Server EoP vulnerability. Affected products are Microsoft Exchange Server 2016 CU 23, Microsoft Exchange Server 2019 CU 12, Microsoft Exchange Server 2013 CU 23, Microsoft Exchange Server 2019 CU 11, and Microsoft Exchange Server 2016 CU 22. Users vulnerable to this issue would need to enable Extended Protection in order to prevent exploitation of this vulnerability. More details can be found on the Exchange Team Blog.
Windows Point-to-Point Protocol
CVE-2022-30133: is a Windows Point-to-Point Protocol (PPP) RCE vulnerability with a CVSS score of 9.8 out of 10. An unauthenticated attacker could send a specially crafted connection request to a remote access server (RAS) server, which could lead to remote code execution (RCE) on the RAS server machine. This vulnerability can only be exploited by communicating via port 1723. As a temporary workaround prior to installing the updates that address this vulnerability, you can block traffic through that port thus rendering the vulnerability unexploitable.
Windows Network File System
CVE-2022-34715: is a Windows Network File System (NFS) RCE vulnerability with a CVSS score of 9.8 out of 10. This vulnerability could be exploited over the network by making an unauthenticated, specially crafted call to a Network File System (NFS) service to trigger a Remote Code Execution (RCE). This vulnerability is not exploitable in NFSV2.0 or NFSV3.0. Prior to updating your version of Windows that protects against this vulnerability, you can mitigate an attack by disabling NFSV4.1. This could adversely affect your ecosystem and should only be used as a temporary mitigation.
Other vendors
Other vendors have synchronized their periodic updates with Microsoft. Here are few major ones that you may find in your environment.
Adobe has also released security updates for many of its products, including Acrobat, Reader, Adobe Commerce, and Magento Open Source. More details on the Adobe security site.
Cisco released security updates for numerous products this month.
Google released Android security updates.
SAP released 5 new Security Notes.
VMware released Security Advisory VMSA-2022-0022 and warned that a recently disclosed auth bypass flaw is now actively exploited.
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Whitepaper called Bughunter's Life-Style: A DIY guide to become an alone long time bughunter for ordinary people. Written in Spanish.
Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability
Dell Unisphere for PowerMax vApp, VASA Provider vApp, and Solution Enabler vApp version 9.2.3.x contain an information disclosure vulnerability. A low privileged remote attacker could potentially exploit this vulnerability, leading to read arbitrary files on the underlying file system.
Plus: Chrome patches another zero-day flaw, Microsoft closes up 100 vulnerabilities, Android gets a significant patch, and more.
Hello everyone! In this episode, let’s take a look at the Microsoft Patch Tuesday August 2022 vulnerabilities. I use my Vulristics vulnerability prioritization tool as usual. I take comments for vulnerabilities from Tenable, Qualys, Rapid7, ZDI and Kaspersky blog posts. Also, as usual, I take into account the vulnerabilities added between the July and August […]
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By Jon Munshaw. Welcome to this week’s edition of the Threat Source newsletter. Everyone seems to want to create the next “Netflix” of something. Xbox’s Game Pass is the “Netflix of video games.” Rent the Runway is a “Netflix of fashion” where customers subscribe to a rotation of fancy clothes. And now threat actors are looking to be the “Netflix of malware.” All categories of malware have some sort of "as-a-service" twist now. Some of the largest ransomware groups in the world operate “as a service,” allowing smaller groups to pay a fee in exchange for using the larger group’s tools. Our latest report on information-stealers points out that “infostealers as-a-service" are growing in popularity, and our researchers also discovered a new “C2 as-a-service" platform where attackers can pay to have this third-party site act as their command and control. And like Netflix, this Dark Utilities site offers several other layers of tools and malware to choose from. This is a parti...
August Patch Tuesday tackles 121 CVEs, 17 critical bugs and one zero-day bug exploited in the wild.
August Patch Tuesday tackles 121 CVEs, 17 critical bugs and one zero-day bug exploited in the wild.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a recently disclosed security flaw in the UnRAR utility to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. Tracked as CVE-2022-30333 (CVSS score: 7.5), the issue concerns a path traversal vulnerability in the Unix versions of UnRAR that can be triggered upon extracting a
As many as 121 new security flaws were patched by Microsoft as part of its Patch Tuesday updates for the month of August, which also includes a fix for a Support Diagnostic Tool vulnerability that the company said is being actively exploited in the wild. Of the 121 bugs, 17 are rated Critical, 102 are rated Important, one is rated Moderate, and one is rated Low in severity. Two of the issues
As many as 121 new security flaws were patched by Microsoft as part of its Patch Tuesday updates for the month of August, which also includes a fix for a Support Diagnostic Tool vulnerability that the company said is being actively exploited in the wild. Of the 121 bugs, 17 are rated Critical, 102 are rated Important, one is rated Moderate, and one is rated Low in severity. Two of the issues
As many as 121 new security flaws were patched by Microsoft as part of its Patch Tuesday updates for the month of August, which also includes a fix for a Support Diagnostic Tool vulnerability that the company said is being actively exploited in the wild. Of the 121 bugs, 17 are rated Critical, 102 are rated Important, one is rated Moderate, and one is rated Low in severity. Two of the issues
As many as 121 new security flaws were patched by Microsoft as part of its Patch Tuesday updates for the month of August, which also includes a fix for a Support Diagnostic Tool vulnerability that the company said is being actively exploited in the wild. Of the 121 bugs, 17 are rated Critical, 102 are rated Important, one is rated Moderate, and one is rated Low in severity. Two of the issues
As many as 121 new security flaws were patched by Microsoft as part of its Patch Tuesday updates for the month of August, which also includes a fix for a Support Diagnostic Tool vulnerability that the company said is being actively exploited in the wild. Of the 121 bugs, 17 are rated Critical, 102 are rated Important, one is rated Moderate, and one is rated Low in severity. Two of the issues
Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.
Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.
Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.
Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.
Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.
Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.
By Jon Munshaw and Vanja Svajcer. Microsoft released its monthly security update Tuesday, disclosing more than 120 vulnerabilities across its line of products and software, the most in a single Patch Tuesday in four months. This batch of updates also includes a fix for a new vulnerability in the Microsoft Windows Support Diagnostic Tool (MSDT) that’s actively being exploited in the wild, according to Microsoft. MSDT was already the target of the so-called “Follina” zero-day vulnerability in June. In all, August’s Patch Tuesday includes 15 critical vulnerabilities and a single low- and moderate-severity issue. The remainder is classified as “important.” Two of the important vulnerabilities CVE-2022-35743 and CVE-2022-34713 are remote code execution vulnerabilities in MSDT. However, only CVE-2022-34713 has been exploited in the wild and Microsoft considers it “more likely” to be exploited. Microsoft Exchange Server contains two critical elevation of privilege vulnerabilities, CVE-2...
By Jon Munshaw and Vanja Svajcer. Microsoft released its monthly security update Tuesday, disclosing more than 120 vulnerabilities across its line of products and software, the most in a single Patch Tuesday in four months. This batch of updates also includes a fix for a new vulnerability in the Microsoft Windows Support Diagnostic Tool (MSDT) that’s actively being exploited in the wild, according to Microsoft. MSDT was already the target of the so-called “Follina” zero-day vulnerability in June. In all, August’s Patch Tuesday includes 15 critical vulnerabilities and a single low- and moderate-severity issue. The remainder is classified as “important.” Two of the important vulnerabilities CVE-2022-35743 and CVE-2022-34713 are remote code execution vulnerabilities in MSDT. However, only CVE-2022-34713 has been exploited in the wild and Microsoft considers it “more likely” to be exploited. Microsoft Exchange Server contains two critical elevation of privilege vulnerabilities, CVE-2...
By Jon Munshaw and Vanja Svajcer. Microsoft released its monthly security update Tuesday, disclosing more than 120 vulnerabilities across its line of products and software, the most in a single Patch Tuesday in four months. This batch of updates also includes a fix for a new vulnerability in the Microsoft Windows Support Diagnostic Tool (MSDT) that’s actively being exploited in the wild, according to Microsoft. MSDT was already the target of the so-called “Follina” zero-day vulnerability in June. In all, August’s Patch Tuesday includes 15 critical vulnerabilities and a single low- and moderate-severity issue. The remainder is classified as “important.” Two of the important vulnerabilities CVE-2022-35743 and CVE-2022-34713 are remote code execution vulnerabilities in MSDT. However, only CVE-2022-34713 has been exploited in the wild and Microsoft considers it “more likely” to be exploited. Microsoft Exchange Server contains two critical elevation of privilege vulnerabilities, CVE-2...
By Jon Munshaw and Vanja Svajcer. Microsoft released its monthly security update Tuesday, disclosing more than 120 vulnerabilities across its line of products and software, the most in a single Patch Tuesday in four months. This batch of updates also includes a fix for a new vulnerability in the Microsoft Windows Support Diagnostic Tool (MSDT) that’s actively being exploited in the wild, according to Microsoft. MSDT was already the target of the so-called “Follina” zero-day vulnerability in June. In all, August’s Patch Tuesday includes 15 critical vulnerabilities and a single low- and moderate-severity issue. The remainder is classified as “important.” Two of the important vulnerabilities CVE-2022-35743 and CVE-2022-34713 are remote code execution vulnerabilities in MSDT. However, only CVE-2022-34713 has been exploited in the wild and Microsoft considers it “more likely” to be exploited. Microsoft Exchange Server contains two critical elevation of privilege vulnerabilities, CVE-2...
The computing giant issued a massive Patch Tuesday update, including a pair of remote execution flaws in the Microsoft Support Diagnostic Tool (MSDT) after attackers used one of the vulnerabilities in a zero-day exploit.
The computing giant issued a massive Patch Tuesday update, including a pair of remote execution flaws in the Microsoft Support Diagnostic Tool (MSDT) after attackers used one of the vulnerabilities in a zero-day exploit.
Microsoft Exchange Server Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2022-21980, CVE-2022-24477.
Windows Network File System Remote Code Execution Vulnerability.
Windows Point-to-Point Protocol (PPP) Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-35744.
Microsoft Exchange Server Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2022-21980, CVE-2022-24516.
Microsoft Exchange Information Disclosure Vulnerability. This CVE ID is unique from CVE-2022-21979, CVE-2022-34692.
Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-35743.