Vulnerability · Published Jan 18, 2021 · Assigned by mitre
CVE-2021-25294
Critical 9.8
In plain English
A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 11.3% (higher than 96% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)11.3%top 4.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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 products (as reported)
References
- https://snoopysecurity.github.io/web-application-security/2021/01/16/09_opencats_php_object_injection.html x_refsource_MISC
- https://github.com/snoopysecurity/snoopysecurity.github.io/blob/master/web-application-security/2021/01/16/09_opencats_php_object_injection.html x_refsource_MISC
- https://www.opencats.org/news/ x_refsource_MISC