CVE-2011-1506

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.

Category

6.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 4.99% Top 15%
Vendor Advisory secunia.com Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.kb.cert.org/vuls/id/MAPG-8D9M4P us government resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/65932 vdb entry
http://www.vupen.com/english/advisories/2011/0610 vdb entry vendor advisory
http://www.securityfocus.com/bid/46767 vdb entry
http://www.kb.cert.org/vuls/id/555316 third party advisory us government resource
http://secunia.com/advisories/43678 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-1506?
CVE-2011-1506 has been scored as a medium severity vulnerability.
How to fix CVE-2011-1506?
To fix CVE-2011-1506, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1506 being actively exploited in the wild?
It is possible that CVE-2011-1506 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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