Home/CVE/Incorrect permission assignment for critical resource vulnerability in GroupSession Free edition ver5.1.1 and earlier, G
CVE

CVE-2021-20874

Incorrect permission assignment for critical resource vulnerability in GroupSession Free edition ver5.1.1 and earlier, G

Incorrect permission assignment for critical resource vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier allows a remote unauthenticated attacker to access arbitrary files on the server and obtain sensitive information via unspecified vectors.

HIGH · CVSS 7.5 EPSS 0.00638
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-732Incorrect Permission Assignment for Critical Resource
▤

Affected Products & Versions

1
groupsession<= 5.1.1
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · vultures@jpcert.or.jp
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Dec 2021 · 07:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://groupsession.jp/info/info-news/security20211220Vendor Advisory
https://jvn.jp/en/jp/JVN79798166/index.htmlThird Party Advisory
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