Vulnerability Description
BigTree CMS through 4.2.18 allows remote authenticated users to execute arbitrary code by uploading a crafted package containing a PHP web shell, related to extraction of a ZIP archive to filename patterns such as cache/package/xxx/yyy.php. This issue exists in core\admin\modules\developer\extensions\install\unpack.php and core\admin\modules\developer\packages\install\unpack.php. NOTE: the vendor states "You must implicitly trust any package or extension you install as they all have the ability to write PHP files.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bigtreecms | Bigtree Cms | <= 4.2.18 |
Related Weaknesses (CWE)
References
- https://github.com/bigtreecms/BigTree-CMS/issues/291ExploitThird Party Advisory
- https://github.com/bigtreecms/BigTree-CMS/issues/291ExploitThird Party Advisory
FAQ
What is CVE-2017-9442?
CVE-2017-9442 is a vulnerability with a CVSS score of 8.8 (HIGH). BigTree CMS through 4.2.18 allows remote authenticated users to execute arbitrary code by uploading a crafted package containing a PHP web shell, related to extraction of a ZIP archive to filename pat...
How severe is CVE-2017-9442?
CVE-2017-9442 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-9442?
Check the references section above for vendor advisories and patch information. Affected products include: Bigtreecms Bigtree Cms.