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Telegram Desktop: one-click account takeover via IPC injection
TL;DR
A vulnerability in Telegram Desktop allows attackers to hijack accounts via crafted links, enabling arbitrary file access and potential account takeover. This flaw stems from improper handling of inter-process communication (IPC) and a lack of authorization checks.
✦ Why It Matters
Upgrade Telegram Desktop to version 7.2.9 or later to protect against this vulnerability.
Key Takeaways
- Upgrade to Telegram Desktop 7.2.9 or later immediately.
- Limit group invitations to contacts only to reduce exposure.
- Set a local passcode to enhance account security.
- Enable 'ask where to save each file' to prevent automatic downloads.
How It Works
The vulnerability exploits how Telegram Desktop handles links when it is already running. When a user clicks a crafted link, the application processes it through a local socket, allowing attackers to inject additional commands.
This results in the execution of unauthorized actions, such as reading sensitive files without user confirmation.