Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
September 18, 2023
Severity Medium Analysis Summary Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information […]September 18, 2023Severity Medium Analysis Summary CVE-2023-4948 CVSS:4.3 WooCommerce CVR Payment Gateway Plugin for WordPress could allow a remote attacker to bypass security restrictions, caused by missing capability […]September 18, 2023Severity High Analysis Summary Microsoft has stated that a ransomware group working with an initial access broker has recently started using Microsoft Teams for their phishing […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
September 18, 2023Severity Medium Analysis Summary Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information […]September 18, 2023Severity Medium Analysis Summary CVE-2023-4948 CVSS:4.3 WooCommerce CVR Payment Gateway Plugin for WordPress could allow a remote attacker to bypass security restrictions, caused by missing capability […]September 18, 2023Severity High Analysis Summary Microsoft has stated that a ransomware group working with an initial access broker has recently started using Microsoft Teams for their phishing […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Rewterz Threat Advisory -Intel CPUs Vulnerable to New ‘SGAxe’ and ‘CrossTalk’ Side-Channel Attacks
June 11, 2020Rewterz Threat Advisory – CVE-2020-3961 – VMware Horizon Client for Windows update privilege escalation vulnerability
June 11, 2020
Severity
High
Analysis Summary
A new critical vulnerability is affecting the Server Message Block (SMB) protocol that could allow attackers to leak kernel memory remotely, and when combined with a previously disclosed “wormable” bug, the flaw can be exploited to achieve remote code execution attacks on unpatched systems running Windows 10.
Dubbed “SMBleed” (CVE-2020-1206) by cybersecurity firm ZecOps, the flaw resides in SMB’s decompression function — the same function as with SMBGhost or EternalDarkness bug (CVE-2020-0796), which came to light three months ago, potentially opening vulnerable Windows systems to malware attacks that can propagate across networks. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system.
- To exploit the vulnerability against a server, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv3 server.
- To exploit the vulnerability against a client, an unauthenticated attacker would need to configure a malicious SMBv3 server and convince a user to connect to it.
Impact
- Remote Code Execution
- Information Disclosure
- System Compromise
- Possible Network-wide attack
Affected Products
Windows 10 versions 1903 and 1909
Remediation
Updates have been released.
See Microsoft’s security guidance addressing SMBleed and SMBGhost in Windows 10 version 1909 and 1903 and Server Core:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1206
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796