PSF-2019-8 TALOS-2018-0758 SSL CRL distribution points Denial of Service

An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted...

Threat Source newsletter (Oct. 31, 2019)

Newsletter compiled by Jon Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. We’re scared of stalkerware, and you should be, too. These spyware apps are becoming more popular among everyone from nation-states to...

Vulnerability Spotlight: Multiple vulnerabilities in YouPHPTube

Yuri Kramarz of Security Advisory EMEAR discovered these vulnerabilities. Post by Jon Munshaw. YouPHPTube contains multiple vulnerabilities that could allow an attacker to carry out a variety of malicious activities. Specially crafted, attacker-created web requests can allow an attacker to inject...

Vulnerability Spotlight: Denial-of-service in VMWare Fusion 11

Piotr Bania of Cisco Talos discovered this vulnerability. Executive summary VMware Fusion 11 contains an exploitable denial-of-service vulnerability. VMWare Fusion is an application for Mac operating systems that allows users to run other OSs in a virtual environment, such as Windows and Linux. A...

Beers with Talos Ep. #64: Your problem isn’t complex, it's simply complexity

By Mitch Neff Beers with Talos BWT Podcast episode No. 64 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing, click here. Recorded Oct. 10, 2019 This episode lives up to its name, by trying to only take on a minimal topic and the...

Gustuff Android Banker Switches Up Technical Approach

An Instagram-initiated campaign using the Gustuff Android mobile banking trojan has rolled out in October, featuring an updated version of the malware that lowers its detection profile. How the cybercriminals are rolling out the campaign is the same as a previous offensive seen in June, according...

Threat Source newsletter (Oct. 17, 2019)

Newsletter compiled by Jon Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. It’s rare that iOS jailbreaks make it onto the scene. Apple is usually able to patch them out quickly. But a recent exploit is actually...

Vulnerability Spotlight: Another fix for Adobe Acrobat Reader DC text field value remote code execution

Aleksandar Nikolic of Cisco Talos discovered this vulnerability. Cisco Talos once again would like to bring attention to a remote code execution vulnerability in Adobe Acrobat Reader. Acrobat, which is one of the most popular PDF readers on the market, contains a bug when the software incorrectly...

Beers with Talos Ep. #63: The third law of thermodynamics

Beers with Talos BWT Podcast episode No. 63 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing, click here. Recorded Sept. 27, 2019 We are missing Matt and Joel this time, so Mitch, Craig and Nigel are taking you through this...

Talos takes home top research honors at Virus Bulletin conference

By Jon Munshaw Researchers from Cisco Talos brought up the top award at this year’s Virus Bulletin conference. Talos received the Péter Ször Award — named for the prolific security researcher who was a longtime contributor to Virus Bulletin and passed away in 2013 — for our research into several...

Threat Source newsletter (Oct. 10, 2019)

Newsletter compiled by Jon Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. It’s that time again to update all your Microsoft products. The company released its monthly update Tuesday, disclosing more than 60...

New IDA Pro plugin provides TileGX support

By Jonas Zaddach Overview Cisco Talos has a new plugin available for IDA Pro that provides a new disassembler for TileGX binaries. This tool should assist researchers in reverse-engineering threats in IDA Pro that target TileGX. We started developing this tool after the VPNFilter campaign last...

Vulnerability Spotlight: Multiple remote code execution bugs in NitroPDF

Cory Duplantis and Aleksandar Nikolic of Cisco Talos discovered these vulnerabilities. Cisco Talos recently discovered multiple remote code execution vulnerabilities in NitroPDF. Nitro PDF allows users to save, read, sign and edit PDF files on their machines. There are two versions of the product...

Vulnerability spotlight: Multiple vulnerabilities in Schneider Electric Modicon M580

Jared Rittle and Patrick DeSantis of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. There are several vulnerabilities in the Schneider Electric Modicon M580 that could lead to a variety of conditions, the majority of which can cause a denial of service. The Modicon M580 is the...

Vulnerability Spotlight: Foxit PDF Reader JavaScript Array.includes remote code execution vulnerability

Aleksandar Nikolic of Cisco Talos discovered this vulnerability. Foxit PDF Reader contains a remote code execution vulnerability in its JavaScript engine. Foxit aims to be one of the most feature-rich PDF readers on the market, and contains many similar functions to that of Adobe Acrobat Reader...

Debian DSA-4535-1 : e2fsprogs - security update

Lilith of Cisco Talos discovered a buffer overflow flaw in the quota code used by e2fsck from the ext2/ext3/ext4 file system utilities. Running e2fsck on a malformed file system can result in the execution of arbitrary code. C Tenable Network Security, Inc. The descriptive text and package checks...

[SECURITY] [DSA 4535-1] e2fsprogs security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4535-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso September 27, 2019 https://www.debian.org/security/faq -...

Thousands of PCs Affected by Nodersok/Divergent Malware

New malware identified by Microsoft and Cisco Talos has affected thousands of PCs in the United States and Europe and turns systems into proxies for performing malicious activity, the companies said. The fileless threat—called Nodersok by Microsoft and Divergent by Cisco Talos—has many of its own...

Threat Roundup for September 20 to September 27

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Sept. 20 and Sept. 27. 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...

Threat Roundup for September 13 to September 20

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Sept. 13 and Sept. 20. 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...