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Japan Vulnerability NotesJVN:46258789

HistoryAug 11, 2020 - 12:00 a.m.

JVN#46258789: Multiple vulnerabilities in CyberMail

2020-08-1100:00:00

Japan Vulnerability Notes

jvn.jp

cybermail

vulnerabilities

xss

open redirect

cve-2020-5540

cve-2020-5541

patch

workarounds

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.002

Percentile

56.7%

JSON

CyberMail contains multiple vulnerabilities listed below.

Cross-site Scripting (CWE-79) - CVE-2020-5540

Version	Vector	Score
CVSS v3	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	Base Score: 6.1
CVSS v2	AV:N/AC:M/Au:N/C:N/I:P/A:N	Base Score: 4.3

Open Redirect (CWE-601) - CVE-2020-5541

Version	Vector	Score
CVSS v3	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N	Base Score: 4.7
CVSS v2	AV:N/AC:M/Au:N/C:N/I:P/A:N	Base Score: 4.3

Impact

An arbitrary script may be executed on the user’s web browser - CVE-2020-5540
When accessing a specially crafted URL, the user may be redirected to an arbitrary website. As a result, the user may become a victim of a phishing attack - CVE-2020-5541

Solution

Apply the Patch
Apply the patch according to the information provided by the developer.
The developer has released the following patch for CyberMail Ver.7.x to address this vulnerability.
CyberMail 6.x is no longer supported (EOS), and there are no plans to release a patch for it.

hotfix_cmv7sp3_200616

Apply workarounds
Applying workarounds may mitigate the impacts of these vulnerabilities.
For the details, refer to the support documentation provided by the developer (Japanese Only) (Registered Users Only).

Products Affected

CyberMail Ver.6.x
CyberMail Ver.7.x

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.002

Percentile

56.7%

JSON

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