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Advisories

Jadaptive Maverick Synergy Server before 3.0.33 and 3.1.x before 3.1.7, and Maverick Legacy Server before 1.8.1, VFS Mount Policy Bypass via Non-Canonical Paths

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Severity
high
Date
Affecting

  • Maverick Synergy Server >= 0, < 3.0.33

  • Maverick Synergy Server >= 3.1.0, < 3.1.7

  • Maverick Legacy Server >= 0, < 1.8.1

CWE
  • CWE-41 Improper Resolution of Path Equivalence
CVSS
7.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
Jadaptive Limited
Description
Jadaptive Maverick Synergy Server before 3.0.33 and 3.1.x before 3.1.7, and Maverick Legacy Server before 1.8.1, contain an improper path equivalence flaw in VirtualFileFactory.canonicalisePath that bypasses mount-level access policy. Authenticated users can supply paths with duplicate separators or dot segments to route operations to a less restrictive parent mount and read or write files the child mount denies.

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