CVE-2021-25294

OpenCATS through 0.9.5-3 unsafely deserializes index.php?m=activity requests, leading to remote code execution. This occurs because lib/DataGrid.php calls unserialize for the parametersactivity:ActivityDataGrid parameter. The PHP object injection exploit chain can leverage an __destruct magic method in guzzlehttp.
Severity
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Atk. Vector
NETWORK
Atk. Complexity
LOW
Priv. Required
NONE
Base Score
CVSS 3.x
EPSS Score
Percentile: 96%
VendorProductVersion
opencatsopencats
𝑥
≤ 0.9.5-3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/snoopysecurity/snoopysecurity.github.io/blob/master/web-application-security/2021/01/16/09_opencats_php_object_injection.html
https://snoopysecurity.github.io/web-application-security/2021/01/16/09_opencats_php_object_injection.html
https://www.opencats.org/news/
https://github.com/snoopysecurity/snoopysecurity.github.io/blob/master/web-application-security/2021/01/16/09_opencats_php_object_injection.html
https://snoopysecurity.github.io/web-application-security/2021/01/16/09_opencats_php_object_injection.html
https://www.opencats.org/news/