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Description
An attacker can inject a Windows UNC share (‘\UNCsharename’) into a software system to potentially redirect access to an unintended location or arbitrary file.
Modes of Introduction:
– Implementation
Related Weaknesses
Consequences
Confidentiality, Integrity: Read Files or Directories, Modify Files or Directories
Potential Mitigations
Phase: Implementation
Effectiveness: High
Description:
Phase: Implementation
Description:
Inputs should be decoded and canonicalized to the application’s current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
CVE References
- CVE-2001-0687
- FTP server allows a remote attacker to retrieve privileged web server system information by specifying arbitrary paths in the UNC format (\computernamesharename).