Published:2010/10/12  Last Updated:2010/10/15

JVN#88850043
Lhasa may insecurely load executable files

Overview

Lhasa may use unsafe methods for determining how to load executables (.exe).

Products Affected

  • Lhasa ver0.19 and earlier

Description

Lhasa is a file extraction software that supports LZH and ZIP formats. Lhasa loads certain executables (.exe) when extracting files. Lhasa contains an issue with the file search path, which may insecurely load executables.

Impact

An attacker may execute arbitrary code with the privilege of running the application.

Solution

Update the Software
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
Yoshihito Takemura vulnerable 2010/10/12 http://www.digitalpad.co.jp/~takechin/

References

  1. IPA
    Security Alert for Vulnerability in Lhasa

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2010.10.12

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity the user must be convinced to take a difficult or suspicious action. If the honest user must have elevated privileges, they are likely to be more suspiciouse
  • High

Description of each analysis measures

Credit

Makoto Shiotsuki reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2010-2369
JVN iPedia JVNDB-2010-000038

Update History

2010/10/15
Published in English.