Microsoft on Tuesday rolled out security patches to incorporate a complete of 71 vulnerabilities in Microsoft Windows and other application, which includes a correct for an actively exploited privilege escalation vulnerability that could be exploited in conjunction with remote code execution bugs to take manage in excess of susceptible techniques.
Two of the addressed security flaws are rated Critical, 68 are rated Vital, and 1 is rated Low in severity, with three of the issues listed as publicly regarded at the time of the release. The four zero-times are as follows —
- CVE-2021-40449 (CVSS rating: 7.8) – Acquire32k Elevation of Privilege Vulnerability
- CVE-2021-41335 (CVSS rating: 7.8) – Windows Kernel Elevation of Privilege Vulnerability
- CVE-2021-40469 (CVSS score: 7.2) – Windows DNS Server Distant Code Execution Vulnerability
- CVE-2021-41338 (CVSS rating: 5.5) – Windows AppContainer Firewall Procedures Security Aspect Bypass Vulnerability
At the prime of the list is CVE-2021-40449, a use-soon after-free vulnerability in the Earn32k kernel driver found out by Kaspersky as staying exploited in the wild in late August and early September 2021 as part of a popular espionage marketing campaign concentrating on IT businesses, defense contractors, and diplomatic entities. The Russian cybersecurity organization dubbed the menace cluster “MysterySnail.”
“Code similarity and re-use of C2 [command-and-control] infrastructure we uncovered authorized us to hook up these attacks with the actor regarded as IronHusky and Chinese-speaking APT activity dating again to 2012,” Kaspersky scientists Boris Larin and Costin Raiu stated in a technical generate-up, with the an infection chains primary to the deployment of a distant obtain trojan capable of gathering and exfiltrating procedure data from compromised hosts ahead of reaching out to its C2 server for further instructions.
Other bugs of be aware incorporate remote code execution vulnerabilities impacting Microsoft Trade Server (CVE-2021-26427), Windows Hyper-V (CVE-2021-38672 and CVE-2021-40461), SharePoint Server (CVE-2021-40487 and CVE-2021-41344), and Microsoft Word (CVE-2021-40486) as very well as an facts disclosure flaw in Rich Textual content Edit Handle (CVE-2021-40454).
CVE-2021-26427, which has a CVSS rating of 9. and was recognized by the U.S. National Security Company, underscores that “Exchange servers are significant-value targets for hackers searching to penetrate small business networks,” Bharat Jogi, senior supervisor of vulnerability and risk research at Qualys, mentioned.
The Oct Patch Tuesday is rounded out by fixes for two shortcomings newly identified in the Print Spooler ingredient — CVE-2021-41332 and CVE-2021-36970 — every single relating to an info disclosure bug and a spoofing vulnerability, which has been tagged with an “Exploitation Far more Possible” exploitability index evaluation.
“A spoofing vulnerability commonly indicates that an attacker can impersonate or determine as yet another person,” security researcher ollypwn mentioned in a Twitter thread. “In this case, it seems like an attacker can abuse the Spooler support to add arbitrary data files to other servers.”
Software program Patches From Other Distributors
In addition to Microsoft, patches have also been launched by a number of other suppliers to address various vulnerabilities, such as —
- Adobe
- Android
- Apple
- Cisco
- Citrix
- Intel
- Linux distributions Oracle Linux, Crimson Hat, and SUSE
- SAP
- Schneider Electrical
- Siemens, and
- VMware
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Some parts of this article are sourced from:
thehackernews.com