Japan Vulnerability NotesJVN:79798166JVN#79798166: Multiple vulnerabilities in GroupSession
5.8 Medium
CVSS2
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
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
62.1%
GroupSession provided by Japan Total System Co.,Ltd. contains multiple vulnerabilities listed below.
Incorrect Permission Assignment for Critical Resource (CWE-732) - CVE-2021-20874
| Version | Vector | Score |
|---|---|---|
| CVSS v3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | Base Score: 7.5 |
| CVSS v2 | AV:N/AC:L/Au:N/C:P/I:N/A:N | Base Score: 5.0 |
Open redirect (CWE-601) - CVE-2021-20875
| 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 |
Path Traversal (CWE-22) - CVE-2021-20876
| Version | Vector | Score |
|---|---|---|
| CVSS v3 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N | Base Score: 4.9 |
| CVSS v2 | AV:N/AC:L/Au:S/C:P/I:N/A:N | Base Score: 4.0 |
Impact
- A remote attacker may access arbitrary files on the server. As a result, sensitive information may be obtained - CVE-2021-20874
- 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-2021-20875
- A remote attacker who logged in to the product with an administrative account may obtain sensitive information stored in the hierarchy above the directory on the publicated site’s server - CVE-2021-20876
Solution
Update the software
Update the software to the latest version according to the information provided by the developer.
Products Affected
- GroupSession Free edition ver5.1.1 and earlier
- GroupSession byCloud ver5.1.1 and earlier
- GroupSession ZION ver5.1.1 and earlier
Related
5.8 Medium
CVSS2
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
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
62.1%