JVN#45583702
Installer of PhishWall Client Internet Explorer version may insecurely load Dynamic Link Libraries
Overview
The installer of PhishWall Client Internet Explorer Version may insecurely load Dynamic Linking Libraries.
Products Affected
- The Installer of PhishWall Client Internet Explorer Version, ver. 3.7.8.1 and earlier
Description
PhishWall Client Internet Explorer Version, provided by SecureBrain Corporation, is an anti-phishing and anti-MITB software.
The installer of PhishWall Client Internet Explorer Version contains an issue with the DLL search path, which may lead to insecurely loading dynamic linking libraries.
This installer is built with an old version of Install Shield. The latest vesrion of Install Shield already addressed the issue.
See Best Practices to Avoid Windows Setup Launcher Executable Issues for details.
Impact
Arbitrary code may be executed with the privilege of the user invoking the installer.
Solution
Use the latest installer
Use the latest installer according to the information provided by the developer.
Users who already have installed PhishWall Client Internet Explorer Version, do not need to re-install the application, because this issue affects the installer only.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| SecureBrain Corporation | Vulnerable | 2016/08/17 | SecureBrain Corporation website |
References
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Flexera Software Knowledge Article 000019593
Best Practices to Avoid Windows Setup Launcher Executable Issues
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 prepared by an attacker in a specific folder.
Credit
Takashi Yoshikawa of Mitsui Bussan Secure Directions 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-2016-4846 |
| JVN iPedia |
JVNDB-2016-000139 |