Self-Extracting Archives created by File Compact may insecurely load Dynamic Link Libraries


File Compact provided by SOURCENEXT CORPORATION is compression/decompression software. It can also create self-extracting archive files. Self-extracting archive files created by File Compact contain an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries (CWE-427).

Eili Masami of Tachibana Lab. and BlackWingCat of PinkFlyingWhale reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 7.8 (High) [IPA Score]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

The self-extracting archive files created by following software are affected:

  • File Compact Ver.5 version 5.10 and earlier
  • File Compact Ver.6 version 6.02 and earlier
  • File Compact Ver.7 version 7.02 and earlier

[Updated on February 16, 2018]
This advisory was first published on July 10, 2017. At that point it stated that the affected products were "File Compact Ver.5 version 5.09 and earlier." "File Compact Ver.6 version 6.01 and earlier" and "File Compact Ver.7 version 7.01 and earlier". However, the updated versions, "File Compact Ver.5 version 5.10", "File Compact Ver.6 version 6.02" and "File Compact Ver.7 version 7.02" contained insufficient fixes. [Products Affected] has been updated to reflect this.

Arbitrary code may be executed with the privilege of the user invoking a vulnerable self-extracting archive file.

[Update File Compact and Recreate Self-Extracting Archive files]
Update to the latest version according to the information provided by the developer, and recreate self-extracting archive files.
According to developer, self-extracting archives created by the following software versions are not affected.

* File Compact Ver.5 version 5.11
* File Compact Ver.6 version 6.03
* File Compact Ver.7 version 7.03
Vendor Information

CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2017-2252

  1. JVN : JVN#29939155
  2. JVN : JVNTA#91240916
  3. National Vulnerability Database (NVD) : CVE-2017-2252
Revision History

  • [2017/07/10]
      Web page was published
      References : Content was added
      Overview was modified
      Affected Products : Product versions were modified
      Solution was modified