Vulnerabilities affecting this package (0)
| Vulnerability |
Summary |
Fixed by |
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This package is not known to be affected by vulnerabilities.
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Vulnerabilities fixed by this package (3)
| Vulnerability |
Summary |
Aliases |
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VCID-qrb6-ar5k-eqha
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Command Injection
The `setFrom` function in the Sendmail adapter in the zend-mail component might allow remote attackers to pass extra parameters to the `mail` command and consequently execute arbitrary code via a `\"` in a crafted e-mail address.
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CVE-2016-10034
GHSA-r9mw-gwx9-v3h5
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VCID-qs6q-pjks-euh4
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Remote code execution in zend-mail via Sendmail adapter
A malicious user may be able to inject arbitrary parameters to the system Sendmail program. The attack is performed by providing additional quote characters within an address; when unsanitized, they can be interpreted as additional command line arguments, leading to the vulnerability.
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ZF2016-04
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VCID-xj4r-5hb3-rfcd
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Zend-Mail remote code execution in zend-mail via Sendmail adapter
When using the zend-mail component to send email via the `Zend\Mail\Transport\Sendmail` transport, a malicious user may be able to inject arbitrary parameters to the system sendmail program. The attack is performed by providing additional quote characters within an address; when unsanitized, they can be interpreted as additional command line arguments, leading to the vulnerability.
The following example demonstrates injecting additional parameters to the sendmail binary via the From address:
```
use Zend\Mail;
$mail = new Mail\Message();
$mail->setBody('This is the text of the email.');
// inject additional parameters to sendmail command line
$mail->setFrom('"AAA\" params injection"@domain', 'Sender\'s name');
$mail->addTo('hacker@localhost', 'Name of recipient');
$mail->setSubject('TestSubject');
$transport = new Mail\Transport\Sendmail();
$transport->send($mail);
```
The attack works because zend-mail filters the email addresses using the RFC 3696 specification, where the string "AAA\" params injection"@domain is considered a valid address. This validation is provided using the zend-validator component with the following parameters:
```
Zend\Validator\EmailAddress(
Zend\Validator\Hostname::ALLOW_DNS | Zend\Validator\Hostname::ALLOW_LOCAL
)
```
The above accepts local domain with any string specified by double quotes as the local part. While this is valid per RFC 3696, due to the fact that sender email addresses are provided to the sendmail binary via the command line, they create the vulnerability described above.
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GHSA-cxf7-m5g2-v594
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