Vulnerability Description
The STARTTLS implementation in Kerio Connect 7.1.4 build 2985 and MailServer 6.x does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411. NOTE: some of these details are obtained from third party information.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kerio | Connect | 7.1.4 |
| Kerio | Kerio Mailserver | 5.0 |
Related Weaknesses (CWE)
References
- http://secunia.com/advisories/43678Vendor Advisory
- http://www.kb.cert.org/vuls/id/555316US Government Resource
- http://www.kb.cert.org/vuls/id/MAPG-8D9M4PUS Government Resource
- http://www.securityfocus.com/bid/46767
- http://www.vupen.com/english/advisories/2011/0610Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65932
- http://secunia.com/advisories/43678Vendor Advisory
- http://www.kb.cert.org/vuls/id/555316US Government Resource
- http://www.kb.cert.org/vuls/id/MAPG-8D9M4PUS Government Resource
- http://www.securityfocus.com/bid/46767
- http://www.vupen.com/english/advisories/2011/0610Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65932
FAQ
What is CVE-2011-1506?
CVE-2011-1506 is a vulnerability with a CVSS score of 6.8 (MEDIUM). The STARTTLS implementation in Kerio Connect 7.1.4 build 2985 and MailServer 6.x does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SM...
How severe is CVE-2011-1506?
CVE-2011-1506 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1506?
Check the references section above for vendor advisories and patch information. Affected products include: Kerio Connect, Kerio Kerio Mailserver.