Authentication bypass on Uber’s Single Sign-On via subdomain takeover

TL;DR: Uber was vulnerable to subdomain takeover on saostatic.uber.com via Amazon CloudFront CDN. Moreover, Uber’s recently deployed Single Sign-On (SSO) system at auth.uber.com, which is based on shared cookies between all *.uber.com subdomains,…

TL;DR: Uber was vulnerable to subdomain takeover on saostatic.uber.com via Amazon CloudFront CDN. Moreover, Uber’s recently deployed Single Sign-On (SSO) system at auth.uber.com, which is based on shared cookies between all *.uber.com subdomains, was found vulnerable to session cookie theft… Continue Reading


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