Threat Source newsletter (April 20, 2023) — Preview of Cisco and Talos at RSA

Welcome to this weeks edition of the Threat Source newsletter. Were firing up the conference circuit again for 2023, kicking things off next week with the RSA Conference in San Francisco. Cisco has a ton of exciting announcements, keynotes and talks lined up for the week, but there are also plent...

U.S. and U.K. Warn of Russian Hackers Exploiting Cisco Router Flaws for Espionage

U.K. and U.S. cybersecurity and intelligence agencies have warned of Russian nation-state actors exploiting now-patched flaws in networking equipment from Cisco to conduct reconnaissance and deploy malware against select targets. The intrusions, per the authorities, took place in 2021 and targete...

LockBit ransomware on Mac: Should we worry?

One of the big headlines over the weekend is LockBit, the high-profile Russian ransomware gang, decided to expand its portfolio of potential victims by creating and releasing its first macOS payload, potentially triggering members of the Apple community to panic. But have no fear: Apple security...

Threat Roundup for April 7 to April 14

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between April 7 and April 14. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

Vulnerability Spotlight: Hard-coded password vulnerability could allow attacker to completely take over Lenovo Smart Clock

Kelly Leuschner and Thorsten Rosendahl discovered this vulnerability. Cisco Talos researchers recently discovered a vulnerability in the Lenovo Smart Clock Essential that could allow an attacker to completely take over the device if they have access to the network the clock is connected to...

Researcher Spotlight: Giannis Tziakouris first learned how to fix his family’s PC, and now he’s fixing networks all over the globe

Giannis Tziakouris had a problem growing up: He kept breaking his PC. He loved experimenting on his familys home computer, but things didnt always go as planned. Thats when his dad told him he had to learn how to fix the PC and get it back up and running, or hed revoke Giannis computer access...

Threat Roundup for March 31 to April 7

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between March 31 and April 7. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

Vulnerability Spotlight: Vulnerabilities in popular Japanese word processing software could lead to arbitrary code execution, other issues

A Cisco Talos researcher discovered these vulnerabilities. Cisco Talos recently discovered four vulnerabilities in Ichitaro, a popular word processing software in Japan produced by JustSystems that could lead to arbitrary code execution. Ichitaro uses the ATOK input method IME and uses the...

ADMesh stl_fix_normal_directions improper array index validation vulnerability

Talos Vulnerability Report TALOS-2022-1594 ADMesh stlfixnormaldirections improper array index validation vulnerability April 3, 2023 CVE Number CVE-2022-38072 SUMMARY An improper array index validation vulnerability exists in the stlfixnormaldirections functionality of ADMesh Master Commit 767a10...

Threat Roundup for March 24 to March 31

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between March 24 and March 31. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

Threat Advisory: 3CX Softphone Supply Chain Compromise

Cisco Talos is tracking and actively responding to a supply chain attack involving the 3CX Desktop Softphone application. This is a multi-stage attack that involves sideloading DLLs, seven-day sleep routines, and additional payloads dependent on a now-removed GitHub repository for Windows-based...

Vulnerability Spotlight: Vulnerability in ManageEngine OpManager could lead to XXE attack

Marcin "Icewall" Noga of Cisco Talos discovered this vulnerability. Cisco Talos recently discovered a vulnerability in ManageEngine OpManager that could lead to an XML external entity XXE attack. OpManager is network monitoring software that allows users to track and manage the performance of...

Vulnerability Spotlight: Specially crafted files could lead to denial of service, information disclosure in OpenImageIO parser

Lilith of Cisco Talos discovered these vulnerabilities. Cisco Talos recently discovered three vulnerabilities in the OpenImageIO image-parsing library that many popular pieces of 3-D rendering software use. OpenImageIO is a library that converts, compares and processes various image files. Blende...

Vulnerability Spotlight: SNIProxy contains remote code execution vulnerability

Keane OKelley of Cisco ASIG discovered this vulnerability. Cisco ASIG recently discovered a remote code execution vulnerability in the SNIProxy open-source tool that occurs when the user utilizes wildcard backend hosts. SNIProxy proxies incoming HTTP and TLS connections based on the hostname...

Threat Roundup for March 17 to March 24

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 17 and March 24. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral...

Fighting the Good Fight: Life inside the Talos Ukraine Task Unit

As we spoke about in the new ThreatWise TV documentary, "People Matter: A look back on how Cisco Talos has been supporting Ukraine," war isnt something that often appears in an organizations business continuity or disaster recovery plans. In the months leading up to Russias invasion of Ukraine,...

Vulnerability Spotlight: Netgear Orbi router vulnerable to arbitrary command execution

Christopher McBee and Dave McDaniel of Cisco Talos discovered these vulnerabilities. Cisco Talos recently discovered four vulnerabilities in the Netgear Orbi mesh wireless system, including the main hub router and satellite routers that extend the networks range. A mesh system allows users to set...

Vulnerability Spotlight: WellinTech ICS platform vulnerable to information disclosure, buffer overflow vulnerabilities

Carl Hurd of Cisco Talos discovered these vulnerabilities. Cisco Talos recently discovered two vulnerabilities in WellinTechs KingHistorian industrial control systems data manager. KingHistorian is a time-series database that allows users to ingest and process large amounts of data from ICS,...

Netgear Orbi Router RBR750 Remote Management cleartext transmission vulnerability

Talos Vulnerability Report TALOS-2022-1598 Netgear Orbi Router RBR750 Remote Management cleartext transmission vulnerability March 21, 2023 CVE Number CVE-2022-38458 SUMMARY A cleartext transmission vulnerability exists in the Remote Management functionality of Netgear Orbi Router RBR750 4.6.8.5....

Vulnerability Spotlight: Node-SQLite3 issue could lead to denial of service in Ghost CMS

Dave McDaniel of Cisco Talos discovered this vulnerability. Cisco Talos recently discovered a vulnerability in node-sqlite3 that affects the Ghost content management system and could affect other software utilizing this library. Ghost is a content management system with tools to build a website,...