An information disclosure vulnerability exists when Azure DevOps Server and Microsoft Team Foundation Server do not properly sanitize a specially crafted authentication request to an affected server. An attacker who successfully exploited this vulnerability could execute malicious code on a vulnerable server. To exploit this vulnerability, an authenticated attacker would need to create a page specifically designed to cause a server-side request. The attacker would then send a specially-crafted message to perform a server-side request forgery attack. The update addresses the vulnerability by modifying how Azure DevOps Server and Microsoft Team Foundation Server manage server authentication.

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