Microsoft rolled out Patch Tuesday updates for the month of July with fixes for a full of 117 security vulnerabilities, which include nine zero-working day flaws, of which 4 are claimed to be below active assaults in the wild, most likely enabling an adversary to choose manage of afflicted systems.
Of the 117 issues, 13 are rated Critical, 103 are rated Important, and just one is rated as Reasonable in severity, with six of these bugs publicly known at the time of launch.
The updates span across several of Microsoft’s products and solutions, which includes Windows, Bing, Dynamics, Exchange Server, Business office, Scripting Engine, Windows DNS, and Visible Studio Code. July also marks a dramatic jump in the volume of vulnerabilities, surpassing the quantity Microsoft collectively addressed as component of its updates in Could (55) and June (50).
Chief between the security flaws actively exploited are as follows —
- CVE-2021-34527 (CVSS rating: 8.8) – Windows Print Spooler Remote Code Execution Vulnerability (publicly disclosed as “PrintNightmare”)
- CVE-2021-31979 (CVSS rating: 7.8) – Windows Kernel Elevation of Privilege Vulnerability
- CVE-2021-33771 (CVSS rating: 7.8) – Windows Kernel Elevation of Privilege Vulnerability
- CVE-2021-34448 (CVSS rating: 6.8) – Scripting Motor Memory Corruption Vulnerability
Microsoft also pressured the significant attack complexity of CVE-2021-34448, especially stating that the assaults hinge on the risk of luring an unsuspecting user into clicking on a website link that qualified prospects to a malicious web site hosted by the adversary and incorporates a specifically-crafted file which is engineered to bring about the vulnerability.
The other 5 publicly disclosed, but not exploited, zero-day vulnerabilities are outlined below —
- CVE-2021-34473 (CVSS score: 9.1) – Microsoft Exchange Server Distant Code Execution Vulnerability
- CVE-2021-34523 (CVSS rating: 9.) – Microsoft Exchange Server Elevation of Privilege Vulnerability
- CVE-2021-33781 (CVSS score: 8.1) – Energetic Directory Security Characteristic Bypass Vulnerability
- CVE-2021-33779 (CVSS score: 8.1) – Windows ADFS Security Element Bypass Vulnerability
- CVE-2021-34492 (CVSS score: 8.1) – Windows Certificate Spoofing Vulnerability
“This Patch Tuesday will come just times just after out-of-band updates were being released to address PrintNightmare — the critical flaw in the Windows Print Spooler company that was uncovered in all versions of Windows,” Bharat Jogi, senior supervisor of vulnerability and threat investigate at Qualys, explained to The Hacker News.
“When MSFT has produced updates to fix the vulnerability, users should continue to be certain that necessary configurations are set up accurately. Methods with misconfigurations will keep on to be at risk of exploitation, even right after the most recent patch has been applied. PrintNightmare was a very really serious issue that further more underscores the importance of marrying detection and remediation,” Jogi included.
The PrintNightmare vulnerability has also prompted the U.S. Cybersecurity and Infrastructure Security Agency (CISA) to launch an unexpected emergency directive, urging federal departments and agencies to use the most up-to-date security updates quickly and disable the print spooler assistance on servers on Microsoft Energetic Listing Area Controllers.
In addition, Microsoft also rectified a security bypass vulnerability in Windows Good day biometrics-based mostly authentication option (CVE-2021-34466, CVSS score: 5.7) that could permit an adversary to spoof a target’s confront and get all-around the login display screen.
Other critical flaws remediated by Microsoft include distant code execution vulnerabilities influencing Windows DNS Server (CVE-2021-34494, CVSS rating 8.8) and Windows Kernel (CVE-2021-34458), the latter of which is rated 9.9 on the CVSS severity scale.
“This issue enables a one root input/output virtualization (SR-IOV) product which is assigned to a guest to possibly interfere with its Peripheral Component Interface Express (PCIe) siblings which are connected to other guests or to the root,” Microsoft famous in its advisory for CVE-2021-34458, incorporating Windows occasions hosting digital machines are susceptible to this flaw.
To set up the hottest security updates, Windows end users can head to Commence > Options > Update & Security > Windows Update or by picking out Check out for Windows updates.
Software package Patches From Other Distributors
Together with Microsoft, patches have also been unveiled by a quantity of other distributors to address many vulnerabilities, together with —
- Adobe
- Android
- Apache Tomcat
- Cisco
- Linux distributions SUSE, Oracle Linux, and Pink Hat
- SAP
- Schneider Electric powered
- Siemens, and
- VMware
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Some parts of this article are sourced from:
thehackernews.com