Home/CVE/Invision Power Services (IPS) Community Suite before 4.1.9 makes session hijack easier by relying on the PHP uniqid func
CVE

CVE-2016-2564

Invision Power Services (IPS) Community Suite before 4.1.9 makes session hijack easier by relying on the PHP uniqid func

Invision Power Services (IPS) Community Suite before 4.1.9 makes session hijack easier by relying on the PHP uniqid function without the more_entropy flag. Attackers can guess an Invision Power Board session cookie if they can predict the exact time of cookie generation.

MEDIUM · CVSS 5.9 EPSS 0.00305
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-331Insufficient Entropy
▤

Affected Products & Versions

1
invisioncommunity invision power board<= 4.1.8.1
▣

Scoring & Timeline

5.9
MEDIUM · CVSS v3.0 · cve@mitre.org
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 NVD23 Apr 2017 · 03:59 PM
CVSS VectorCVSS:3.0/AV:N/AC:H/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://invisionpower.com/release-notes/419-r37/Release NotesVendor Advisory
https://medium.com/%40iancarroll/bypassing-authentication-in-invision-power-board-with-cve-2016-2564-9a24ea3655f9
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