Winter Vivern Capitalizes on Zero-Day Flaw in Roundcube

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary The Winter Vivern cyberespionage group has been actively exploiting a zero-day vulnerability in the Roundcube webmail. The identified vulnerability, CVE-2023-5631, permits stored cross-site scripting...

Nation State Hackers Exploiting Zero-Day in Roundcube Webmail Software

The threat actor known as Winter Vivern has been observed exploiting a zero-day flaw in Roundcube webmail software on October 11, 2023, to harvest email messages from victims' accounts. "Winter Vivern has stepped up its operations by using a zero-day vulnerability in Roundcube," ESET security...

Act Now: VMware Releases Patch for Critical vCenter Server RCE Vulnerability

VMware has released security updates to address a critical flaw in the vCenter Server that could result in remote code execution on affected systems. The issue, tracked as CVE-2023-34048 CVSS score: 9.8, has been described as an out-of-bounds write vulnerability in the implementation of the DCE/R...

Attacks, Vulnerabilities and Actors 16 October to 22 October 2023

For a detailed threat digest, download the pdf file here Summary HiveForce Labs recently made several significant discoveries related to cybersecurity threats. Over the past week, a total of twenty-three attacks were executed, ten vulnerabilities were discovered, and five active adversaries were...

iOS Zero-Day Attacks: Experts Uncover Deeper Insights into Operation Triangulation

The TriangleDB implant used to target Apple iOS devices packs in at least four different modules to record microphone, extract iCloud Keychain, steal data from SQLite databases used by various apps, and estimate the victim's location. The new findings come from Kaspersky, which detailed the great...

Backdoor Implanted on Hacked Cisco Devices Modified to Evade Detection

The backdoor implanted on Cisco devices by exploiting a pair of zero-day flaws in IOS XE software has been modified by the threat actor so as to escape visibility via previous fingerprinting methods. "Investigated network traffic to a compromised device has shown that the threat actor has upgrade...

Cisco Zero-Day Exploited to Implant Malicious Lua Backdoor on Thousands of Devices

Cisco has warned of a new zero-day flaw in IOS XE that has been actively exploited by an unknown threat actor to deploy a malicious Lua-based implant on susceptible devices. Tracked as CVE-2023-20273 CVSS score: 7.2, the issue relates to a privilege escalation flaw in the web UI feature and is sa...

A Longstanding Zero-Day in Citrix Devices Exploited Since August

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary A zero-day exploit, identified as CVE-2023-4966, has been actively targeting critical vulnerabilities in Citrix NetScaler ADC/Gateway devices since late August 2023. This exploit has the potential...

CVE-2023-20198: Active Exploitation of Cisco IOS XE Zero-Day Vulnerability

On Monday, October 16, Cisco’s Talos group published a blog on an active threat campaign exploiting CVE-2023-20198, a “previously unknown” zero-day vulnerability in the web UI component of Cisco IOS XE software. IOS XE is an operating system that runs on a wide range of Cisco networking devices,...

Schneider Electric EcoStruxure Power Monitoring Expert and Power Operation Products

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 9.8 ATTENTION : Exploitable remotely/low attack complexity Vendor : Schneider Electric Equipment : EcoStruxure Power Monitoring Expert, EcoStruxure Power Operation with Advanced Reports, EcoStruxure Power SCADA Operation with Advanced Reports Vulnerability :...

Signal Zero-Day Vulnerability Rumors Refuted by Company

By Deeba Ahmed Zero-Day Scare: Signal Messaging App Emerges Unscathed After Thorough Probe. This is a post from HackRead.com Read the original post: Signal Zero-Day Vulnerability Rumors Refuted by Company...

HTTP/2 Rapid Reset Attack Affecting Cisco Products: October 2023

On October 10, 2023, the following HTTP/2 protocol-level weakness, which enables a novel distributed denial of service DDoS attack technique, was disclosed: CVE-2023-44487: HTTP/2 Rapid Reset For a description of this vulnerability, see the following publications: How it works: The novel HTTP/2...

Signal Debunks Zero-Day Vulnerability Reports, Finds No Evidence

Encrypted messaging app Signal has pushed back against "viral reports" of an alleged zero-day flaw in its software, stating it found no evidence to support the claim. "After responsible investigation we have no evidence that suggests this vulnerability is real nor has any additional info been...

Unraveling the Intricate Arsenal of Stayin’ Alive Campaign

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary In the October Patch Tuesday release, Microsoft addressed 103 flaws, including three actively exploited zero-day vulnerabilities. These patches cover critical and important vulnerabilities, a Chromium fi...

Microsoft’s October 2023 Patch Tuesday Addresses Three Zero-day Vulnerabilities

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary In the October Patch Tuesday release, Microsoft addressed 103 flaws, including three actively exploited zero-day vulnerabilities. These patches cover critical and important vulnerabilities, a...

HTTP/2 Zero-Day Exploited for the Most Explosive DDoS Attacks

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary A zero-day vulnerability in HTTP/2 has been actively exploited in August, introducing a novel DDoS technique referred as "Rapid Reset". The attack, utilizing CVE-2023-44487, exploits a vulnerabili...

Attacks, Vulnerabilities and Actors 2 October to 8 October 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 seven executed attacks, zero instances of adversary activity, and eight zero-day...

An analysis of an in-the-wild iOS Safari WebContent to GPU Process exploit

By Ian Beer A graph representation of the sandbox escape NSExpression payload In April this year Google's Threat Analysis Group, in collaboration with Amnesty International, discovered an in-the-wild iPhone zero-day exploit chain being used in targeted attacks delivered via malicious link. The...

Microsoft’s October 2023 Patch Tuesday Addresses Three Zero-day Vulnerabilities

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary In the October Patch Tuesday release, Microsoft addressed 103 flaws, including three actively exploited zero-day vulnerabilities. These patches cover critical and important vulnerabilities, a...

HTTP2 Zero-Day Exploited for the Most Explosive DDoS Attacks

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary A zero-day vulnerability in HTTP/2 has been actively exploited in August, introducing a novel DDoS technique referred as "Rapid Reset". The attack, utilizing CVE-2023-44487, exploits a vulnerabili...