RCE in Joomla Joomla\!
CVE-2016-10045
The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code by leveraging improper interaction between the escapeshellarg function and internal escaping performed in the mail function in PHP. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-10033.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.977 (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: 0.977 · newest: 0.977 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- packetstormsecurity.com/files/140286/PHPMailer-Remote-Code-Execution.html (Exploit, VDB Entry, Third Party Advisory)
- packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html (Exploit, VDB Entry, Third Party Advisory)
- www.exploit-db.com/exploits/42221/ (VDB Entry, Third Party Advisory, exploit)
- www.exploit-db.com/exploits/40969/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.securityfocus.com/archive/1/539967/100/0/threaded (mailing-list, VDB Entry, Third Party Advisory)
- openwall.com/lists/oss-security/2016/12/28/1 (mailing-list, Patch, Mailing List)
- github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045… (Patch, Vendor Advisory)
- github.com/PHPMailer/PHPMailer/releases/tag/v5.2.20 (Patch, Vendor Advisory)
- www.exploit-db.com/exploits/40986/ (VDB Entry, Third Party Advisory, exploit)
- www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-10045?
- CVE-2016-10045 is a critical-severity vulnerability in Joomla Joomla\!, classified under Command Injection. CVSS score: 9.8/10. Published 2016-12-30.
- How severe is CVE-2016-10045?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-10045 known to be exploited?
- 147 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.