CVE-ID |
CVE-2017-7692
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• CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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Description |
SquirrelMail 1.4.22 (and other versions before 20170427_0200-SVN)
allows post-authentication remote code execution via a sendmail.cf
file that is mishandled in a popen call. It's possible to exploit this
vulnerability to execute arbitrary shell commands on the remote
server. The problem is in the Deliver_SendMail.class.php with the
initStream function that uses escapeshellcmd() to sanitize the
sendmail command before executing it. The use of escapeshellcmd() is
not correct in this case since it doesn't escape whitespaces, allowing
the injection of arbitrary command parameters. The problem is in
-f$envelopefrom within the sendmail command line. Hence, if the target
server uses sendmail and SquirrelMail is configured to use it as a
command-line program, it's possible to trick sendmail into using an
attacker-provided configuration file that triggers the execution of an
arbitrary command. For exploitation, the attacker must upload a
sendmail.cf file as an email attachment, and inject the sendmail.cf
filename with the -C option within the "Options > Personal
Informations > Email Address" setting.
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References |
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
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Assigning CNA |
MITRE Corporation |
Date Entry Created |
20170411 |
Disclaimer: The entry creation date may reflect when
the CVE ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
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Phase (Legacy) |
Assigned (20170411) |
Votes (Legacy) |
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Comments (Legacy) |
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Proposed (Legacy) |
N/A |
This is an entry on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities. |
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For More Information: cve@mitre.org
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