CVE-2021-20788

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.13%
Vendor Advisory groupsession.jp
Affected: Japan Total System Co.,Ltd. GroupSession
Published at:
Updated at:

References

Link Tags
https://groupsession.jp/info/info-news/security202107 vendor advisory
https://jvn.jp/en/jp/JVN86026700/index.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-20788?
CVE-2021-20788 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20788?
To fix CVE-2021-20788, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20788 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20788 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20788?
CVE-2021-20788 affects Japan Total System Co.,Ltd. GroupSession.
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