Sysax Multi Server FTP DELE directory traversal

sysax-ftpdele-directory-traversal (49360) The risk level is classified as MediumMedium Risk

Description:

Sysax Multi Server could allow a remote authenticated attacker to traverse directories on the system. An attacker could send a specially-crafted FTP DELE request containing "dot dot double slash" sequences (..//) to traverse directories and read, modify, or delete arbitrary files from the system.

*CVSS:

Base Score: 4
  Access Vector: Network
  Access Complexity: Low
  Authentication: Single
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.8
  Exploitability: High
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated

Consequences:

File Manipulation

Remedy:

No remedy available as of September 1, 2014.

References:

  • Sysax Web site: Secure ftp server, ftp client, and ftp script.
  • BID-34209: Sysax Multi Server FTP 'DELE' Directory Traversal Vulnerability
  • CVE-2009-4790: Multiple directory traversal vulnerabilities in Sysax Multi Server 4.5 allow remote authenticated users to read or modify arbitrary files via crafted FTP commands. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
  • CVE-2009-4800: Directory traversal vulnerability in Sysax Multi Server 4.3 and 4.5 allows remote authenticated users to delete arbitrary files via a ..// (dot dot slash slash) in a DELE command.
  • OSVDB ID: 52959: Sysax Multi Server FTP DELE Request Handling Traversal Arbitrary File Deletion
  • SA34433: Sysax Multi Server FTP Directory Traversal Vulnerability

Platforms Affected:

  • Sysax Multi Server 4.3

Reported:

Mar 23, 2009

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