CVE-2021-20789
Quick assessment
Affected
Japan Total System Co.,Ltd. GroupSession
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Japan Total System GroupSession是日本Japan Total System公司的一个群件项目，以方便企业和组织的沟通，旨在促进信息共享。 Total System GroupSession 存在输入验证错误漏洞，该漏洞允许远程攻击者将受害者重定向到任意 URL。
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I. Basic Information for CVE-2021-20789
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Open redirect 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 attacker to redirect a user to an arbitrary web site and conduct a phishing attack via a specially crafted URL.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Japan Total System GroupSession 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Japan Total System GroupSession是日本Japan Total System公司的一个群件项目，以方便企业和组织的沟通，旨在促进信息共享。 Total System GroupSession 存在输入验证错误漏洞，该漏洞允许远程攻击者将受害者重定向到任意 URL。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Japan Total System Co.,Ltd. | 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 | - |
|
II. Public POCs for CVE-2021-20789
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-20789 (1)
-
https://jvn.jp/en/jp/JVN86026700/index.html x_refsource_MISC
Other References for CVE-2021-20789 (1)
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https://groupsession.jp/info/info-news/security202107 x_refsource_MISC
Same Patch Batch · Japan Total System Co.,Ltd. · 2021-07-28 · 5 CVEs total
| CVE-2021-20785 | Japan Total System GroupSession 跨站脚本漏洞 | |
| CVE-2021-20786 | Japan Total System GroupSession 跨站请求伪造漏洞 | |
| CVE-2021-20787 | Japan Total System GroupSession 跨站脚本漏洞 | |
| CVE-2021-20788 | Japan Total System GroupSession 代码问题漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-20789
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