JVN#94244575
Self-Extracting files created by multiple SEIKO EPSON products may insecurely load Dynamic Link Libraries
Overview
Self-Extracting files created by multiple SEIKO EPSON products may insecurely load Dynamic Link Libraries.
Products Affected
- EpsonNet SetupManager versions 2.2.14 and earlier
- Offirio SynergyWare PrintDirector versions 1.6x/1.6y and earlier
Description
Self-Extracting files created by multiple SEIKO EPSON products 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 the Self-Extracting files.
Solution
Update the software
Update the software to the latest version according to the information provided by the developer.
According to the developer, this vulnerability has been already addressed in the following versions.
- EpsonNet SetupManager version 2.2.15
- Offirio SynergyWare PrintDirector versions 1.6.1.1/1.6.1.2
Applying workarounds may mitigate the impacts of this vulnerability.
- Do not use the Self-Extracting files created by the products with the affected versions.
- If it is unavoidable to excute the Self-Extracting files created by the products with the affected versions, make sure there are no untrusted files in the directory where the Self-Extracting files exist.
Vendor Status
| Vendor | Link |
| SEIKO EPSON CORPORATION | SEIKO EPSON CORPORATION website |
References
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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
| 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
SEIKO EPSON CORPORATION reported this vulnerability to JPCERT/CC to notify users of its solution through JVN. JPCERT/CC and SEIKO EPSON CORPORATION coordinated under the 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-2020-5681 |
| JVN iPedia |
JVNDB-2020-000086 |