RCE in Bigtreecms Bigtree Cms
CVE-2017-9442
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.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.025 (82.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Bigtreecms Bigtree_cms
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-9442?
- CVE-2017-9442 is a high-severity vulnerability in Bigtreecms Bigtree Cms, classified under Code Injection. CVSS score: 8.8/10. Published 2017-06-05.
- How severe is CVE-2017-9442?
- High severity. CVSS v3 base score is 8.8 out of 10.