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CVE-2021-20788

Published: Jul 28, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-918
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.9%
Top 44.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Server-side request forgery (SSRF) vulnerability in GroupSession (GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0) allows a remote authenticated attacker to conduct a port scan from the product and/or obtain information from the internal Web server.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-918

Affected Products

GroupSessionJapan Total System Co.,Ltd.
On-prem
Enterprise Software / collaboration-groupware
groupsessiongroupsession
On-prem
Enterprise Software / collaboration-groupware
groupsession bycloudgroupsession
On-prem
Enterprise Software / collaboration-groupware
groupsession ziongroupsession
On-prem
Enterprise Software / collaboration-groupware
japan total system co.,ltd.commercialJPEnterprise Softwareaka groupsession bycloud, groupsession free edition, groupsession zion
groupsessioncommercialJPEnterprise Software

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://groupsession.jp/info/info-news/security202107
groupsession.jp
https://jvn.jp/en/jp/JVN86026700/index.html
jvn.jp

Timeline

Published
Jul 28, 2021
Last Updated
Nov 21, 2024

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