Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2016-2564

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.

Published

2017-04-23T15:59:00.153

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-331

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	invisioncommunity	invision_power_board	≤ 4.1.8.1	Yes

References

https://invisionpower.com/release-notes/419-r37/ Release Notes, Vendor Advisory ([email protected])
https://medium.com/%40iancarroll/bypassing-authentication-in-invision-power-board-with-cve-2016-2564-9a24ea3655f9 ([email protected])
https://invisionpower.com/release-notes/419-r37/ Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://medium.com/%40iancarroll/bypassing-authentication-in-invision-power-board-with-cve-2016-2564-9a24ea3655f9 (af854a3a-2127-422b-91ae-364da2661108)