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A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.
Marcin “Icewall” Noga of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered an exploitable memory corruption vulnerability in Hancom Office 2020. Hancom Office is a popular software collection among South Korean users that offers similar products to Microsoft Office, such as word processing and spreadsheet creation and management. TALOS-2022-1574 (CVE-2022-33896) exists in the way the Hword word processing software processes XML files. An attacker could exploit this vulnerability by tricking the user into opening a specially crafted file, triggering a memory corruption error on the software and potentially leading to remote code execution on the targeted machine. Cisco Talos worked with Hancom to ensure that this issue is resolved and an update is available for affected customers, all in adherence to Cisco’s vulnerability disclosure policy. Users are encouraged to update these affected products as soon as possible: Hancom Offic...
By Jon Munshaw. Welcome to this week’s edition of the Threat Source newsletter. As I wrote about last week, I’ve been diving a lot into apps’ privacy policies recently. And I was recently made aware of a new type of app I never knew existed — family trackers. There are countless mobile apps for parents to track their children or other family members based on their location, phone usage, and even driving speed. As an anxious soon-to-be-parent, this sounds intriguing to me — it’d be a supped-up version of Find my Friends on Apple devices so I’d never have to ask my teenager (granted, I’m many years away from being at that stage of my life) when they were coming home or where they were. Just as with all other types of mobile apps, there are pitfalls, though. Life360, one of the most popular of these types of apps and even tells users what their maximum driving speed was on a given trip, was found in December 2021 to be selling precise location data on its users, potentia...
Any time we welcome this software and hardware into our homes and on our devices, it’s worth considering what sacrifices we might be making elsewhere.
A U.S. federal court jury has found former Uber Chief Security Officer Joseph Sullivan guilty of not disclosing a 2016 breach of customer and driver records to regulators and attempting to cover up the incident. Sullivan has been convicted on two counts: One for obstructing justice by not reporting the incident and another for misprision. He faces a maximum of five years in prison for the
Cisco Talos examined several frequently used code repositories. We looked specifically at the security afforded to developer accounts, and how difficult it would be for an attacker to take over a developer account.
Cisco Talos examined several frequently used code repositories. We looked specifically at the security afforded to developer accounts, and how difficult it would be for an attacker to take over a developer account.
By Jaeson Schultz. Over the past several years, high-profile software supply chain attacks have increased in frequency. These attacks can be difficult to detect and source code repositories became a key focus of this research. Developer account takeovers present a substantial risk to the software supply chain because attackers who successfully compromise a developer account could conceal malicious code in software packages used by others. Talos analyzed several of the major software repositories to assess the level of developer account security, focusing specifically on whether developer accounts could be recovered by re-registering expired domain names and triggering password resets. Many software repositories have already begun taking steps to enhance the security of developer accounts. Talos has identified additional areas where the security of developer accounts could be improved. Talos worked with vulnerable repositories to resolve issues that we found. Software supply chain att...
By Waqas Threat Exposure Management is a program that enables IT teams to keep the cybersecurity of the company under control and find critical flaws early. This is a post from HackRead.com Read the original post: How Does Threat Exposure Management Optimize Security Posture?
From the World Cup in Qatar to robotics manufacturing in east Asia, this incident responder combines experience from multiple arenas By Jon Munshaw. Yuri “Jerzy” Kramarz helped secure everything from the businesses supporting the upcoming World Cup in Qatar to the Black Hat security conference and critical national infrastructure. He’s no stranger to cybersecurity on the big stage, but he still enjoys working with companies and organizations of all sizes in all parts of the world. “What really excites me is making companies more secure,” he said in a recent interview. “That comes down to a couple things, but it’s really about putting a few solutions together at first and then hearing the customer’s feedback and building from there.” Yuri is a senior incident response consultant with Cisco Talos Incident Response (CTIR) currently based in Qatar. He walks customers through various exercises, incident response plan creation, recovery in the event of a cyber attack and much more unde...