Security News > 2022 > August > Snapchat, Amex sites abused in Microsoft 365 phishing attacks
Attackers abused open redirects on the websites of Snapchat and American Express in a series of phishing attacks to steal Microsoft 365 credentials.
Open redirects are web app weaknesses that allow threat actors to use the domains of trusted organizations and websites as temporary landing pages to simplify phishing attacks.
They're used in attacks to redirect targets to malicious sites that will either infect them with malware or trick them into handing over sensitive information.
According to Inky researchers, the Snapchat open redirect was used in 6,812 phishing emails sent from Google Workspace and Microsoft 365 hijacked over two and a half months.
While the Snapchat vulnerability was reported to the company through the Open Bug Bounty platform one year ago, on August 4, 2021, the open redirect is yet to be patched.
The Amex open redirect was used in 2,029 phishing emails using Microsoft Office 365 baits, sent from recently registered domains and designed to funnel potential victims to Microsoft credential harvesting sites.
News URL
Related news
- DOJ, Microsoft seize 107 domains used in Russia's Star Blizzard phishing attacks (source)
- Australian Organisations Targeted by Phishing Attacks Disguised as Atlassian (source)
- A Hacker's Era: Why Microsoft 365 Protection Reigns Supreme (source)
- Ransomware attackers hop from on-premises systems to cloud to compromise Microsoft 365 accounts (source)
- Free Sniper Dz Phishing Tools Fuel 140,000+ Cyber Attacks Targeting User Credentials (source)
- Microsoft and DOJ disrupt Russian FSB hackers' attack infrastructure (source)
- New Mamba 2FA bypass service targets Microsoft 365 accounts (source)
- Microsoft issues 117 patches – some for flaws already under attack (source)
- Microsoft Detects Growing Use of File Hosting Services in Business Email Compromise Attacks (source)
- GitHub, Telegram Bots, and ASCII QR Codes Abused in New Wave of Phishing Attacks (source)