VulnerabilityModified
CVE-2021-25294
OpenCATS through 0.9.5-3 unsafely deserializes index.php?m=activity requests, leading to remote code execution.
CRITICAL 9.8EPSS 10.7%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 10.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 10.68% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- opencats/opencats
- Source
- cve@mitre.org
References
- https://github.com/snoopysecurity/snoopysecurity.github.io/blob/master/web-application-security/2021/01/16/09_opencats_php_object_injection.htmlPatch, Third Party Advisory
- https://snoopysecurity.github.io/web-application-security/2021/01/16/09_opencats_php_object_injection.htmlExploit, Third Party Advisory
- https://www.opencats.org/news/Vendor Advisory
- https://github.com/snoopysecurity/snoopysecurity.github.io/blob/master/web-application-security/2021/01/16/09_opencats_php_object_injection.htmlPatch, Third Party Advisory
- https://snoopysecurity.github.io/web-application-security/2021/01/16/09_opencats_php_object_injection.htmlExploit, Third Party Advisory
- https://www.opencats.org/news/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.