Published:2015/04/09  Last Updated:2015/04/09

Lhaplus vulnerable to directory traversal


Lhaplus contains a directory traversal vulnerability.

Products Affected

  • Lhaplus Version 1.59 and earlier


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


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 Status

Vendor Status Last Update Vendor Notes
Schezo Vulnerable 2015/04/09 Schezo website


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2015.04.09 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC) High (H) Medium (M) Low (L) Specialized access conditions exist.
Authentication(Au) Multiple (M) Single (S) None (N) Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is no impact to the confidentiality of the system.
Integrity Impact(I) None (N) Partial (P) Complete (C) Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A) None (N) Partial (P) Complete (C) There is no impact to the availability of the system.

Base Score:2.6


akira_you of Nico-TECH reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2015-0906
JVN iPedia JVNDB-2015-000050