Published:2017/07/07 Last Updated:2017/07/11
JVN#21369452
Installers of Lhaz and Lhaz+, and Self-Extracting Archives created by Lhaz or Lhaz+ may insecurely load Dynamic Link Libraries
Overview
Installers of Lhaz and Lhaz+, and Self-extracting archive files created by Lhaz or Lhaz+ may insecurely load Dynamic Link Libraries.
Products Affected
- Installer of Lhaz version 2.4.0 and earlier - CVE-2017-2246
- Self-extracting archive files created by Lhaz version 2.4.0 and earlier - CVE-2017-2247
- Installer of Lhaz+ version 3.4.0 and earlier - CVE-2017-2248
- Self-extracting archive files created by Lhaz+ version 3.4.0 and earlier - CVE-2017-2249
Description
Lhaz and Lhaz+ provided by Chitora soft contain the following vulnerabilities.
- Installers of Lhaz and Lhaz+ insecurely load Dynamic Link Libraries (CWE-427) - CVE-2017-2246, CVE-2017-2248
CVSS v3 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Base Score: 7.8 CVSS v2 AV:N/AC:M/Au:N/C:P/I:P/A:P Base Score: 6.8 - Self-extracting archive files created by Lhaz or Lhaz+ insecurely load Dynamic Link Libraries (CWE-427) - CVE-2017-2247, CVE-2017-2249
CVSS v3 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Base Score: 7.8 CVSS v2 AV:N/AC:M/Au:N/C:P/I:P/A:P Base Score: 6.8
Impact
- Arbitrary code may be executed with the privilege of the user invoking the installer. - CVE-2017-2246, CVE-2017-2248
- Arbitrary code may be executed with the privilege of the user invoking the self-extracting archive file. - CVE-2017-2247, CVE-2017-2249
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 |
---|---|---|---|
Chitora soft | Vulnerable | 2017/07/07 | Chitora soft website |
References
-
Japan Vulnerability Notes JVNTA#91240916
Insecure DLL Loading and Command Execution Issues on Many Windows Application Programs
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Credit
Eili Masami of Tachibana Lab. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
JPCERT Alert |
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JPCERT Reports |
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CERT Advisory |
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CPNI Advisory |
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TRnotes |
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CVE |
CVE-2017-2246 |
CVE-2017-2247 |
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CVE-2017-2248 |
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CVE-2017-2249 |
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JVN iPedia |
JVNDB-2017-000169 |
Update History
- 2017/07/11
- Information under [Products Affected] was modified.