Lhaplus vulnerable to directory traversal


Lhaplus is a file compression/decompression software. Lhaplus contains an issue in processing file names, which may result in a directory traversal vulnerability.

akira_you of Nico-TECH reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 2.6 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

  • Lhaplus Version 1.59 and earlier


Decompressing a file with a specially crafted file name may result in a creation of an arbitrary file or an overwrite of an existing file.

[Update the Software]
Update to the latest version according to the information provided by the developer.
Vendor Information

CWE (What is CWE?)

  1. Path Traversal(CWE-22) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2015-0906

  1. JVN : JVN#02527990
  2. National Vulnerability Database (NVD) : CVE-2015-0906
Revision History

  • [2015/04/09]
      Web page was published
      References : Content was added