Published:2020/01/21 Last Updated:2020/01/21
JVN#66435380
Multiple Fuji Xerox mobile applications fails to verify SSL server certificates
Overview
Multiple Fuji Xerox mobile applications fail to verify SSL server certificates.
Products Affected
- netprint App for iOS 3.2.3 and earlier - CVE-2020-5520
- kantan netprint App for iOS 2.0.2 and earlier - CVE-2020-5521
- kantan netprint App for Android 2.0.3 and earlier - CVE-2020-5522
Description
Multiple Fuji Xerox mobile applications fail to verify SSL server certificates (CWE-295).
Impact
A man-in-the-middle attack may allow an attacker to eavesdrop on an encrypted communication.
Solution
Update the Software
Update to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| Fuji Xerox Co.,Ltd. | Vulnerable | 2020/01/21 | Fuji Xerox Co.,Ltd. website |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score:
4.8
| 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) |
CVSS v2
AV:N/AC:H/Au:N/C:P/I:P/A:N
Base Score:
4.0
| 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 a man-in-the-middle attack being conducted by an attacker that places a malicious wireless LAN access point.
Credit
Hirotaka Niisato 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-2020-5520 |
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CVE-2020-5521 |
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CVE-2020-5522 |
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| JVN iPedia |
JVNDB-2020-000006 |