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Advisories

GFI MailEssentials AI < 22.4 ListServer.IsDbExist() Absolute Directory Traversal to File Enumeration

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severity
medium
date
Affecting

  • MailEssentials AI < 22.4

CWE
  • CWE-203 Observable Discrepancy
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Alex Williams from Pellera Technologies
Description
GFI MailEssentials AI versions prior to 22.4 contain an arbitrary file existence enumeration vulnerability in the ListServer.IsDBExist() web method exposed at /MailEssentials/pages/MailSecurity/ListServer.aspx/IsDBExist. An authenticated user can supply an unrestricted filesystem path via the JSON key \\"path\\", which is URL-decoded and passed to File.Exists(), allowing the attacker to determine whether arbitrary files exist on the server.

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