It's time to update your Macs again! This time, I'm not burying the lede. CVE-2025-31250, which was patched in today's release of macOS Sequoia 15.5, allowed for…
…any Application A to make macOS show a permission consent prompt…
…appearing as if it were coming from any Application B…
…with the results of the user's consent response being applied to any Application C.
These did not have to be different applications. In fact, in most normal uses, they would all likely be the same application. Even a case where Applications B and C were the same but different than Application A would be relatively safe (if somewhat useless from Application A's perspective). However, prior to this vulnerability being patched, a lack of validation allowed for Application B (the app the prompt appears to be from) to be different than Application C (the actual application the user's consent response is applied to).
Spoofing these kinds of prompts is not exactly new. In fact, the HackTricks wiki has had a tutorial on how to perform a similar trick on their site for a while. However, their method requires:
the building of an entire fake app in a temporary directory,
the overriding of a shortcut on the Dock, and
the simple hoping that the user clicks on the (now) fake shortcut.
This vulnerability requires none of the above.
TCC
As I explained in my first ever article on this site, TCC is the core permissions system built into Apple's operating systems. It is used by sending messages to the tccd daemon (or rather, by using functions in the private TCC framework). The framework is a private API, so developers don't call the functions directly (instead, public API's call the functions under-the-hood as needed). However, all this wrapping cannot hide the fact that the control mechanism is still simply sending messages to the daemon.
The daemon uses Apple's public (but proprietary) XPC API for messaging (specifically the lower-level dictionary-based API). Prior to this vulnerability being patched, any app with the ability to send XPC messages to tccd could send it a specifically-crafted message that, as described above, would make it display a permission prompt as if it were from one app but then apply the user's response to a completely separate app. But how was this possible, and was it even hard? Before I answer these questions, we need to detour into what will, at first, seem like a completely unrelated topic.
A hacker breached the GitLab repositories of multinational car-rental company Europcar Mobility Group and stole source code for Android and iOS applications, as well as some personal information belonging to up to 200,000 users.
#Android #Breach #Code #Computer #Data #Europcar #GitLab #InfoSec #Security #Source #iOS
Are you willing to hack and take control of Chinese websites for a random person for up to $100,000 a month?
Someone is making precisely that tantalizing, bizarre, and clearly sketchy job offer. The person is using what looks like a series of fake accounts with avatars displaying photos of attractive women and sliding into the direct messages of several cybersecurity professionals and researchers on X in the last couple of weeks.
Apple finally adds TCC events to Endpoint Security!
Since the majority of macOS malware circumvents TCC through explicit user approval, it would be incredibly helpful for any security tool to detect this — and possibly override the user’s risky decision. Until now the best (only?) option was to ingest log messages generated by the TCC subsystem. This approach was implemented in a tool dubbed Kronos, written by Calum Hall Luke Roberts (now, of Phorion fame). Unfortunately, as they note, this approach did have it drawbacks:
A hacker claims to have stolen thousands of internal documents with user records and employee data after breaching the systems of Orange Group, a leading French telecommunications operator and digital service provider.
#Breach #Computer #Data #Email #Extortion #InfoSec #Jira #Leak #Orange #Ransom #S.A. #Security
CISA and the FBI said attackers deploying Ghost ransomware have breached victims from multiple industry sectors across over 70 countries, including critical infrastructure organizations.
#CISA #Computer #Cring #Critical #FBI #Ghost #InfoSec #Infrastructure #Ransomware #Security
A new variant of the XCSSET macOS modular malware has emerged in attacks that target users' sensitive information, including digital wallets and data from the legitimate Notes app.
A code analysis by the BSI shows that two-factor authentication could be bypassed in Nextcloud Server. Passwords were also stored in plain text.
A help desk phishing campaign targets an organization's Microsoft Active Directory Federation Services (ADFS) using spoofed login pages to steal credentials and bypass multi-factor authentication (MFA) protections.
#ADFS #Account #Computer #InfoSec #Lateral #MFA #Microsoft #Notification #Phishing #Push #Security #Takeover
Security researchers have discovered an arbitrary account takeover flaw in Subaru's Starlink service that could let attackers track, control, and hijack vehicles in the United States, Canada, and Japan using just a license plate.
#Account #Canada #Car #Computer #Hacking #InfoSec #Japan #Security #Starlink #Subaru #Takeover #USA
Yesterday we discovered another client-side JavaScript attack targeting +500 websites, including governments and universities. The injected scripts create hidden links in the Document Object Model (DOM), pointing to external websites, a programming interface for web documents.
A new ransomware campaign encrypts Amazon S3 buckets using AWS's Server-Side Encryption with Customer Provided Keys (SSE-C) known only to the threat actor, demanding ransoms to receive the decryption key.
Apple recently addressed a macOS vulnerability that allows attackers to bypass System Integrity Protection (SIP) and install malicious kernel drivers by loading third-party kernel extensions.
#Apple #Computer #InfoSec #Integrity #Microsoft #Protection #SIP #Security #System #Vulnerability #macOS
A large-scale malvertising campaign distributed the Lumma Stealer info-stealing malware through fake CAPTCHA verification pages that prompt users to run PowerShell commands to verify they are not a bot.
Ascension, one of the largest private U.S. healthcare systems, is notifying over 5.6 million patients and employees that their personal and health data was stolen in a May cyberattack linked to the Black Basta ransomware operation.
Experts say the catchall term for online fraud furthers harm against victims and could dissuade people from reporting attempts to bilk them out of their money.
Apple's macOS has been under siege in 2024 as malware-as-a-service platforms and AI-driven threats make the year a turning point for Mac security.
Amazon has launched AWS Security Incident Response, a service to help triage and respond to cybersecurity threats.
