With the information security industry’s two largest conferences (Black Hat Briefings and Def Con) set to happen in less than a month, Microsoft pulled out all the stops and, for July, nearly tripled the number of patches they released in June for problems discovered in Windows, Office, and software that runs under various server and cloud platforms.
The single product most prominently featured in the hot summer flood of fixes is Microsoft SQL Server. The Microsoft SQL Server Native Client component of this month’s update will fix 38 distinct remote code execution bugs in the OLE database driver. An attacker might invoke any of the bugs in the OLE DB driver by tricking an authenticated account into connecting to a malicious SQL Server database;
Read more…
Source: Sophos
Related:
- Magniber ransomware actors used a variant of Microsoft SmartScreen bypass
March 14, 2023
Google’s Threat Analysis Group (TAG) recently discovered usage of an unpatched security bypass in Microsoft’s SmartScreen security feature, which financially motivated actors are using to deliver the Magniber ransomware without any security warnings. The attackers are delivering MSI files signed with an invalid but specially crafted Authenticode signature. The malformed signature causes SmartScreen to return ...
- Microsoft fixes Windows zero-day exploited in ransomware attacks
March 14, 2023
Microsoft has patched another zero-day bug used by attackers to circumvent the Windows SmartScreen cloud-based anti-malware service and deploy Magniber ransomware payloads without raising any red flags. The attackers have been using malicious MSI files signed with a specially crafted Authenticode signature to exploit this security feature bypass vulnerability (tracked as CVE-2023-24880). Read more… Source: Bleeping Computer Related story: ...
- Frebniis: New Malware Abuses Microsoft IIS Feature to Establish Backdoor
February 16, 2023
Symantec, by Broadcom Software, has observed a new malware that abuses a feature of Microsoft’s Internet Information Services (IIS) to deploy a backdoor onto targeted systems. The malware, dubbed Frebniis (Backdoor.Frebniis), was used by a currently unknown threat actor against targets in Taiwan. Read more… Source: Symantec
- Microsoft: Kubernetes clusters hacked in malware campaign via PostgreSQL
January 9, 2023
The Kinsing malware is now actively breaching Kubernetes clusters by leveraging known weaknesses in container images and misconfigured, exposed PostgreSQL containers. While these tactics aren’t novel, Microsoft’s Defender for Cloud team reports they have seen an uptick lately, indicating that the threat actors are actively looking for specific entry points. Kinsing is a Linux malware with a ...
- CVE-2022-41040 and CVE-2022-41082 – zero-days in MS Exchange
December 19, 2022
At the end of September, GTSC reported an attack on critical infrastructure that took place in August. During the investigation, experts found that two 0-day vulnerabilities in Microsoft Exchange Server were used in the attack. The first one, later identified as CVE-2022-41040, is a server-side request forgery (SSRF) vulnerability that allows an authenticated attacker to ...
- Microsoft fixes ProxyNotShell Exchange zero-days exploited in attacks
November 8, 2022
Microsoft has released security updates to address two high-severity Microsoft Exchange zero-day vulnerabilities collectively known as ProxyNotShell and exploited in the wild. Attackers have been chaining the two security flaws to deploy Chinese Chopper web shells on compromised servers for persistence and data theft, as well as for lateral movement in their victims’ networks since at ...