"Our proactive investment of millions each year into vulnerability research and purchases saves billions in recovery for both our customers and the industry as a whole," said Kevin Simzer, COO at Trend. In addition to these issues, the Patch Tuesday update also resolves a number of remote code execution flaws in Microsoft Excel, Word, ODBC Driver, Office Graphics, SharePoint Server, and Visual Studio, as well as a handful of privilege escalation bugs in Win32k, Overlay Filter, and Group Policy.Urgent action is needed to prioritize patching among researchers, cybersecurity vendors and cloud service providers. ![]() The list of fixes for Critical flaws is tailended by four remote code execution vulnerabilities in the Point-to-Point Tunneling Protocol ( PPTP), all carrying CVSS scores of 8.1 ( CVE-2022-41039, CVE-2022-41088, and CVE-2022-41044), and another impacting Windows scripting languages JScript9 and Chakra ( CVE-2022-41118). Supercharge Your Skillsįour other Critical-rated vulnerabilities in the November patch worth pointing out are privilege elevation flaws in Windows Kerberos ( CVE-2022-37967), Kerberos RC4-HMAC ( CVE-2022-37966), and Microsoft Exchange Server ( CVE-2022-41080), and a denial-of-service flaw affecting Windows Hyper-V ( CVE-2022-38015). Learn how to secure your corporate SaaS applications and protect your data, even after a breach. UPCOMING WEBINARĭetect, Respond, Protect: ITDR and SSPM for Complete SaaS Securityĭiscover how Identity Threat Detection & Response (ITDR) identifies and mitigates threats with the help of SSPM. "This higher level of access is required to disable or tamper with security monitoring tools before running credential attacks with tools like Mimikatz that can allow attackers to move laterally across a network," Breen added. The two privilege escalation flaws in Print Spooler and the CNG Key Isolation Service are likely to be abused by threat actors as a follow-up to an initial compromise and gain SYSTEM privileges, Kev Breen, director of cyber threat research at Immersive Labs, said. Reported by Analygence security researcher Will Dormann, it relates to a failure to set the Mark of the Web flag to extracted archive files. The second MotW flaw to be resolved is CVE-2022-41049 (aka ZippyReads). "An attacker can craft a malicious file that would evade Mark of the Web (MotW) defenses, resulting in a limited loss of integrity and availability of security features such as Protected View in Microsoft Office, which rely on MotW tagging," Microsoft said in an advisory. It was recently discovered as weaponized by the Magniber ransomware actor to target users with fake software updates. CVE-2022-41091 (CVSS score: 5.4) - Windows Mark of the Web Security Feature Bypass Vulnerabilityīenoît Sevens and Clément Lecigne of Google's Threat Analysis Group (TAG) have been credited with reporting CVE-2022-41128, which resides in the JScript9 component and occurs when a target is tricked into visiting a specially crafted website.ĬVE-2022-41091 is one of the two security bypass flaws in Windows Mark of the Web (MoTW) that came to light over the past few months.CVE-2022-41073 (CVSS score: 7.8) - Windows Print Spooler Elevation of Privilege Vulnerability.CVE-2022-41125 (CVSS score: 7.8) - Windows CNG Key Isolation Service Elevation of Privilege Vulnerability.CVE-2022-41128 (CVSS score: 8.8) - Windows Scripting Languages Remote Code Execution Vulnerability.CVE-2022-41082 (CVSS score: 8.0) - Microsoft Exchange Server Remote Code Execution Vulnerability (aka ProxyNotShell). ![]()
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