by Kastro
Paper/Archive/CVE-2021-25294

CVE-2021-25294

mitre — OpenCATS through 0.9.5-3 unsafely deserializes index.php?m=activity requests, leading to remote code execution.

EPSS 11%CVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 96.0.960 × 2019.2No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refsnoopysecurity.github.io/web-application-security/2021/01/16/09_opencats_php_object_injection.htmlrefgithub.com/snoopysecurity/snoopysecurity.github.io/blob/master/web-application-security/2021/01/16/09_opencats_php_object_injection.htmlrefopencats.org/news