{"uuid": "04815893-ee89-407c-8e98-56adce2811ee", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2022-23259", "type": "seen", "source": "https://t.me/hacking_Attack/49993", "content": "nctionality, which is used primarily for file-sharing and inter-process communication, including Remote Procedure Calls. RPC is a communication mechanism that allows for one program to request a service or functionality from another program located on the network (internet and/or intranet). RPCs can be used in technologies like storage replica or managing shared volumes.\n\n\u201cThis vulnerability is another example of an attacker taking advantage of legitimate functionality for malicious gain,\u201d he said via email. \u201cUsing the vulnerability, an attacker can create a specially crafted RPC to execute code on the remote server with the same permissions as the RPC service.\u201d\n\nThe bug could be used to create especially virulent threats, according to Childs.\n\n\u201cSince no user interaction is required, these factors combine to make this wormable, at least between machines where RPC can be reached,\u201d Childs noted.\n\nMicrosoft recommends configuring firewall rules to help prevent this vulnerability from being exploited; the static port used (TCP port 135) can be blocked at the network perimeter.\n\n\u201cStill, this bug could be used for lateral movement by an attacker,\u201d Childs warned. \u201cDefinitely test and deploy this one quickly.\u201d\n\nNext up are CVE-2022-24491/24497, two RCE bugs that affect the Windows Network File System (NFS). Both also have CVSS scores of 9.8, and both are listed as exploitation more likely. They also allow the potential for worming exploits, Childs warned.\n\n\u201cOn systems where the NFS role is enabled, a remote attacker could execute their code on an affected system with high privileges and without user interaction,\u201d Childs explained. \u201cAgain, that adds up to a wormable bug \u2013 at least between NFS servers. Similar to RPC, this is often blocked at the network perimeter.\u201d\n\nImmersive\u2019s Breen added, \u201cThese could be the kind of vulnerabilities which appeal to ransomware operators as they provide the potential to expose critical data.\u00a0 It is also important for security teams to note that NFS Role is not a default configuration for Windows devices.\u201d\n\nThe remaining critical vulnerabilities are as follows:\n\n* CVE-2022-23259: Microsoft Dynamics 365 (on-premises) (CVSS 8.8)\n* CVE-2022-22008: Windows Hyper-V (CVSS 7.7)\n* CVE-2022-23257: Windows Hyper-V (CVSS 8.6)\n* CVE-2022-24537: Windows Hyper-V (CVSS 7.7)\n* CVE-2022-26919: Windows LDAP (CVSS 8.1)\n* CVE-2022-24541: Windows Server (CVSS 8.8)\n* CVE-2022-24500: Windows SMB (CVSS 8.8) Are u a security researcher? Or a company that writes articles or write ups about Cyber Security, Offensive Security (related to information security in general) that match with our specific audience and is worth sharing?\n\nIf you want to express your idea in an article contact us here for a quote: info@blackhatethicalhacking.com\nSee Also: Hacking stories: MafiaBoy, the hacker who took down the Internet Other Bugs of NoteAlso worth mentioning: Out of a whopping 18 bugs found in the Windows Domain Name Server (DNS), one (CVE-2022-26815) allows RCE and is listed as important, with a CVSS score of 7.2.\n\nMicrosoft noted that while attack complexity is low, \u201cthe attacker or targeted user would need specific elevated privileges [for successful exploitation]. As is best practice, regular validation and audits of administrative groups should be conducted.\u201d\n\nMeanwhile, \u201cthere are a couple of important mitigations to point out here,\u201d Childs noted. \u201cThe first is that dynamic updates must be enabled for a server to be affected by this bug. The CVSS also lists some level of privileges to exploit. Still, any chance of an attacker getting RCE on a DNS server is one too many, so get your DNS servers patched.\u201d\nSource: threatpost.com Source Linkhttps://www.blackhatethicalhacking.com/wp-content/uploads/2022/03/Merch-1024x1024.png Recent News* https://www.blackhatethicalhacking.com/wp-content/uploads/2022/04/ezgif.com-gif-maker-2-2-90x90.jpg Git security vulnerabilities prompt updates1 day ago\n* https://www.blackhatethicalhac[...]\n\n___________________________ \n@hacking_Attack\n@Hacking_Video", "creation_timestamp": "2026-09-01T20:01:45.203981Z"}