JVN#29939155
Self-Extracting Archives created by File Compact may insecurely load Dynamic Link Libraries
Overview
Self-extracting archive files created by File Compact may insecurely load Dynamic Link Libraries.
Products Affected
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
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.
Description
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).
Impact
Arbitrary code may be executed with the privilege of the user invoking a vulnerable self-extracting archive file.
Solution
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 Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| SOURCENEXT CORPORATION | Vulnerable | 2018/02/14 | SOURCENEXT CORPORATION website |
References
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Japan Vulnerability Note JVNTA#91240916
Insecure DLL Loading and Command Execution Issues on Many Windows Application Programs
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Comment
This analysis assumes that the user is tricked into placing a malicious DLL file in the same directory where a vulnerable self-extracting archive file resides.
Credit
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.
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-2017-2252 |
| JVN iPedia |
JVNDB-2017-000170 |
Update History
- 2018/02/16
- SOURCENEXT CORPORATION update status
- 2018/02/16
- Information under [Products Affected] and [Solution] was modified, and [Credit] was updated.