Chinese Hacking Group Exploits Barracuda Zero-Day

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary The Chinese-linked hacking group, tracked as UNC4841, has prominently directed its efforts towards infiltrating and compromising various entities in recent attacks. These offensives were particularly...

Exploit for Insufficient Verification of Data Authenticity in Rarlab Winrar

CVE-2023-38831 PoC This repository is just a Proof-of-Concept...

Chinese Hacking Group Exploits Barracuda Zero-Day to Target Government, Military, and Telecom

A suspected Chinese-nexus hacking group exploited a recently disclosed zero-day flaw in Barracuda Networks Email Security Gateway ESG appliances to breach government, military, defense and aerospace, high-tech industry, and telecom sectors as part of a global espionage campaign. Mandiant, which i...

FBI confirms Barracuda patch is not effective for exploited ESG appliances

In an FBI Flash about a Barracuda ESG vulnerability, listed as CVE-2023-2868, the FBI has stated that the patches released by Barracuda in response to this CVE were ineffective for anyone previously infected. Although both Barracude and Mandiant have already made this determination, the agency sa...

CISA Releases IOCs Associated with Malicious Barracuda Activity

CISA has released additional indicators of compromise IOCs associated with exploitation of CVE-2023-2868. CVE-2023-2868 is a remote command injection vulnerability affecting Barracuda Email Security Gateway ESG Appliance, versions 5.1.3.001-9.2.0.006. Malicious threat actors exploited this...

Exploit for Insufficient Verification of Data Authenticity in Rarlab Winrar

CVE-2023-38831-winrar-expoit-simple-Poc Very important I h...

Exploit for Insufficient Verification of Data Authenticity in Rarlab Winrar

CVE-2023-38831 Vulnerable: WinRAR = 6.22 https://www.wi...

Urgent FBI Warning: Barracuda Email Gateways Vulnerable Despite Recent Patches

The U.S. Federal Bureau of Investigation FBI is warning that Barracuda Networks Email Security Gateway ESG appliances patched against a recently disclosed critical flaw continue to be at risk of potential compromise from suspected Chinese hacking groups. It also deemed the fixes as "ineffective"...

WinRAR Zero-Day Exploit Targeting Traders Since April

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary The zero-day vulnerability CVE-2023-38831 in WinRAR, allowing hackers to install malware through manipulated archives, exposing users to hidden malicious scripts and potential cyberattacks. To...

Exploit for Link Following in Microsoft

CVE-2023-36874 Windows Error Reporting LPE BOF Introductio...

WinRAR Security Flaw Exploited in Zero-Day Attacks to Target Traders

A recently patched security flaw in the popular WinRAR archiving software has been exploited as a zero-day since April 2023, new findings from Group-IB reveal. The vulnerability, cataloged as CVE-2023-38831, allows threat actors to spoof file extensions, thereby making it possible to launch...

The Tale of Two Exploits - Breaking Down CVE-2023-36884 and the Infection Chain

The Tale of Two Exploits - Breaking Down CVE-2023-36884 and the Infection Chain By Trellix · August 24, 2023 This blog was written by Chintan Shah Executive Summary On July 11 2023, Microsoft released a patch fixing multiple actively exploited RCE vulnerabilities and disclosed a phishing campaign...

Ivanti Addressed A New Zero-Day Flaw in Ivanti Sentry

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary The zero-day vulnerability CVE-2023-38035 in Ivanti Sentry versions 9.18 and earlier allows unauthenticated access to sensitive APIs via port 8443, posing a risk of configuration manipulation and...

Ivanti Warns of Critical Zero-Day Flaw Being Actively Exploited in Sentry Software

Software services provider Ivanti is warning of a new critical zero-day flaw impacting Ivanti Sentry formerly MobileIron Sentry that it said is being actively exploited in the wild, marking an escalation of its security woes. Tracked as CVE-2023-38035 CVSS score: 9.8, the issue has been described...

New WinRAR Vulnerability Could Allow Hackers to Take Control of Your PC

A high-severity security flaw has been disclosed in the WinRAR utility that could be potentially exploited by a threat actor to achieve remote code execution on Windows systems. Tracked as CVE-2023-40477 CVSS score: 7.8, the vulnerability has been described as a case of improper validation while...

Ransomware review: August 2023

This article is based on research by Marcelo Rivero, Malwarebytes' ransomware specialist, who monitors information published by ransomware gangs on their Dark Web sites. In this report, "known attacks" are those where the victim did not pay a ransom. This provides the best overall picture of...

Microsoft Patch Tuesday, August 2023 Edition

Microsoft Corp. today issued software updates to plug more than 70 security holes in its Windows operating systems and related products, including multiple zero-day vulnerabilities currently being exploited in the wild. Six of the flaws fixed today earned Microsofts "critical" rating, meaning...

Microsoft and Adobe Patch Tuesday, August 2023 Security Update Review

Microsoft has released its August edition of Patch Tuesday. This months updates have addressed 89 security vulnerabilities in multiple products, features, and roles. Microsoft Patch Tuesday for August 2023 Microsoft has addressed two zero-day vulnerabilities known to be publicly exploited in this...

New Yashma Ransomware Variant Targets Multiple English-Speaking Countries

An unknown threat actor is using a variant of the Yashma ransomware to target various entities in English-speaking countries, Bulgaria, China, and Vietnam at least since June 4, 2023. Cisco Talos, in a new write-up, attributed the operation with moderate confidence to an adversary of likely...

Attacks, Vulnerabilities and Actors 31 July to 6 August 2023

For a detailed threat digest, download the pdf file here Summary HiveForce Labs has recently made several significant discoveries related to cybersecurity threats. Over the past week, we identified a total of one executed attack, one instance of adversary activity, and thirteen vulnerabilities,...