CyberSecure Specialist

23 Jun

NSA Issues Guidance on Mitigating BlackLotus Bootkit Infections

Information, News

The National Security Agency (NSA) has published technical mitigation guidance to help organizations harden systems against BlackLotus UEFI bootkit infections. The NSA’s recommendations provide a blueprint for defenders to protect systems from BlackLotus, a stealthy malware that emerged on underground forums in late 2022 with capabilities that include user access control (UAC) and secure boot bypass, unsigned driver loading, and prolonged persistence. To disable secure boot, the bootkit exploits a year-old vulnerability in Windows (CVE-2022-21894)…

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23 Jun

In Other News: Microsoft Win32 App Isolation,Tsunami Hits Linux Servers, ChatGPT Credentials Exposed on Dark Web

Information, News

SecurityWeek is publishing a weekly cybersecurity roundup that provides a concise compilation of noteworthy stories that might have slipped under the radar. We provide a valuable summary of stories that may not warrant an entire article, but are nonetheless important for a comprehensive understanding of the cybersecurity landscape. Each week, we will curate and present a collection of noteworthy developments, ranging from the latest vulnerability discoveries and emerging attack techniques to significant policy changes and…

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23 Jun

CISA Tells US Agencies to Patch Exploited Roundcube, VMware Flaws

Information, News

The US government’s cybersecurity agency CISA on Thursday added another batch of security flaws to its Known Exploited Vulnerabilities (KEV) catalog and urged federal agencies to patch these issues as a matter of urgency. The already exploited vulnerabilities affect users of the open-source Roundcube webmail server and VMware Aria Operations for Networks. Exploitation of the open-source mail server Roundcube flaws has been linked to Russian state-sponsored attacks against the Ukrainian government and other high-profile entities…

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23 Jun

Millions of GitHub repositories vulnerable to RepoJacking: Report

Data Breaches, Malware, Social Engineering

Millions of GitHub repositories are potentially vulnerable to RepoJacking, which allows attackers to carry out code execution on organizations’ internal environments or on their customers’ environments, according to research by AquaSec.  AquaSec analyzed a sample of 1.25 million GitHub repositories and found that about 2.95% were vulnerable to RepoJacking, including repositories belonging to companies such as Google and Lyft.  What is RepoJacking? On GitHub, organizations have usernames and repository names. In instances such as a…

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23 Jun

CISA Adds Five Known Exploited Vulnerabilities to Catalog

Attacks, Insights, Malware

CISA has added five new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2023-32434 Apple Multiple Products Integer Overflow Vulnerability CVE-2023-32435 Apple iOS and iPadOS WebKit Memory Corruption Vulnerability CVE-2023-32439 Apple iOS, iPadOS, and macOS WebKit Type Confusion Vulnerability CVE-2023-20867 VMware Tools Authentication Bypass Vulnerability CVE-2023-27992 Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Note: To view…

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23 Jun

IOTW: A full timeline of the MOVEit cyber attack

Attacks, Data Breaches

Ransomware gang Clop, which has taken responsibility for the cyber attack launched against document transfer service MOVEit, has announced that it has not stolen data from companies thought to be impacted by data breaches linked to the attack. These companies include the UK’s British Broadcasting Company (BBC), British Airways and high street health and beauty retailer Boots. Since June 14, Clop has been posting company profiles of companies allegedly impacted by data breaches caused by…

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22 Jun

Maltego: Check how exposed you are online

Information

A primer on how to use this powerful tool for uncovering and connecting information from publicly available sources It’s a truism that personal data is a valuable asset for cybercriminals, as it allows them to tailor and otherwise improve their phishing and other social engineering attacks. The wealth and variety of personal data that is available online is leveraged for attacks and scams that target not only people but also companies. But organizations too can…

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22 Jun

S3 Ep140: So you think you know ransomware?

Information

by Paul Ducklin LISTEN AND LEARN Gee Whizz BASIC (probably). Think you know ransomware? Megaupload, 11 years on. ASUS warns of critical router bugs. MOVEit mayhem Part III. No audio player below? Listen directly on Soundcloud. With Doug Aamoth and Paul Ducklin. Intro and outro music by Edith Mudge. You can listen to us on Soundcloud, Apple Podcasts, Google Podcasts, Spotify, Stitcher and anywhere that good podcasts are found. Or just drop the URL of…

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22 Jun

SMS Phishers Harvested Phone Numbers, Shipment Data from UPS Tracking Tool

Information, Insights

The United Parcel Service (UPS) says fraudsters have been harvesting phone numbers and other information from its online shipment tracking tool in Canada to send highly targeted SMS phishing (a.k.a. “smishing”) messages that spoofed UPS and other top brands. The missives addressed recipients by name, included details about recent orders, and warned that those orders wouldn’t be shipped unless the customer paid an added delivery fee. In a snail mail letter sent this month to…

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