Improper input validation in Joomla Joomla\!
CVE-2015-8562
Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP User-Agent header, as exploited in the wild in December 2015.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.983 (99.9th percentile), scored .
Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.983 · newest: 0.983 · change: 0.000
Affected products
- Joomla Joomla\! — versions 1.5.0, 1.5.1, 1.5.2
Weakness classification (CWE)
Public proof-of-concept exploits
- VoidSec/Joomla_CVE-2015-8562
- ZaleHack/joomla_rce_CVE-2015-8562
- dmonst3r/CVE-2015-8562
- paralelo14/CVE-2015-8562
- RobinHoutevelts/Joomla-CVE-2015-8562-PHP-POC
- Caihuar/Joomla-cve-2015-8562
- drolley919/joomla-cve-2015-8562-exploit-and-linux-forensic-analysis
- lorenzodegiorgi/setup-cve-2015-8562
- guanjivip/CVE-2015-8562
- xnorkl/Joomla_Payload
References
- www.exploit-db.com/exploits/39033/ (Exploit, exploit)
- www.securityfocus.com/archive/1/537219/100/0/threaded (mailing-list)
- www.exploit-db.com/exploits/38977/ (Exploit, exploit)
- packetstormsecurity.com/files/135100/Joomla-3.4.5-Object-Injection.html
- packetstormsecurity.com/files/134949/Joomla-HTTP-Header-Unauthenticated-Remote-… (Exploit)
- developer.joomla.org/security-centre/630-20151214-core-remote-code-execution-vu… (Vendor Advisory)
- www.securityfocus.com/bid/79195 (vdb-entry)
- www.rapid7.com/db/modules/exploit/multi/http/joomla_http_header_rce
- blog.sucuri.net/2015/12/remote-command-execution-vulnerability-in-joomla.html (Exploit)
Frequently asked questions
- What is CVE-2015-8562?
- CVE-2015-8562 is a vulnerability in Joomla Joomla\!, classified under Improper Input Validation. Published 2015-12-16.
- Is CVE-2015-8562 known to be exploited?
- 43 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.