JVN#35928117
Protection mechanism failure in RevoWorks
Overview
RevoWorks SCVX and RevoWorks Browser provided by J's Communications Co., Ltd. contain a protection mechanism failure vulnerability.
Products Affected
- RevoWorks SCVX prior to scvimage4.10.21_1013
- RevoWorks Browser prior to 2.2.95
Description
RevoWorks SCVX and RevoWorks Browser provided by J's Communication Co., Ltd. enable users to execute web browsers in the sandboxed environment isolated from the client's local environment.
In the products, file exchange between the sandboxed environment and local environment is prohibited in principle, but by using the optional "VirusChecker" or "ThreatChecker" feature and changing the policy settings, files checked for viruses by these features in the sandboxed environment can be permitted to be downloaded to the local environment.
However, there is a vulnerability (CWE-693) in the products where malware detection is failed when data containing malware is saved in a specific file format (eml, dmg, vhd, iso, msi) in the sandboxed environment
Impact
If data containing malware is saved in a specific file format, malware may be taken outside the sandboxed environment.
Solution
Update the software
Update the software to the latest version according to the information provided by the developer.
The developer addressed the vulnerability in the following versions:
- RevoWorks SCVX scvimage4.10.21_1013
- RevoWorks Browser 2.2.95
Applying the following workaround may avoid the impact of this vulnerability.
- Do not use "VirusChecker" and "ThreatChecker" features
Vendor Status
| Vendor | Link |
| J's Communication Co., Ltd. | The Vulnerability of VirusChecker/ThreatChecker Processing in RevoWorks Products (Text in Japanese) |
References
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) |
Credit
J's Communication Co., Ltd. reported this vulnerability to IPA to notify users of its solution through JVN. JPCERT/CC and J's Communication Co., Ltd. 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-2024-25091 |
| JVN iPedia |
JVNDB-2024-000025 |