Vulnerability Description
steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Roundcube | Webmail | <= 1.1.6 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2016/12/08/10Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/94858
- https://blog.ripstech.com/2016/roundcube-command-execution-via-email/ExploitThird Party Advisory
- https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-releasedRelease NotesVendor Advisory
- https://security.gentoo.org/glsa/201612-44
- http://www.openwall.com/lists/oss-security/2016/12/08/10Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/94858
- https://blog.ripstech.com/2016/roundcube-command-execution-via-email/ExploitThird Party Advisory
- https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-releasedRelease NotesVendor Advisory
- https://security.gentoo.org/glsa/201612-44
FAQ
What is CVE-2016-9920?
CVE-2016-9920 is a vulnerability with a CVSS score of 7.5 (HIGH). steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-f...
How severe is CVE-2016-9920?
CVE-2016-9920 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-9920?
Check the references section above for vendor advisories and patch information. Affected products include: Roundcube Webmail.