Strix
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CVE-2011-1506

UnknownEPSS 2.47%

Last modified

CVE-2011-1506 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.47% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.47%

82.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
KerioConnect7.1.4
KerioKerio Mailserver5.0
KerioKerio Mailserver5.1
KerioKerio Mailserver5.1.1
KerioKerio Mailserver5.6.3
KerioKerio Mailserver5.6.4
KerioKerio Mailserver5.6.5
KerioKerio Mailserver5.7.0
KerioKerio Mailserver5.7.1
KerioKerio Mailserver5.7.2
KerioKerio Mailserver5.7.3
KerioKerio Mailserver5.7.4
KerioKerio Mailserver5.7.5
KerioKerio Mailserver5.7.6
KerioKerio Mailserver5.7.7
KerioKerio Mailserver5.7.8
KerioKerio Mailserver5.7.9
KerioKerio Mailserver5.7.10
KerioKerio Mailserver6.0
KerioKerio Mailserver6.0.0
KerioKerio Mailserver6.0.1
KerioKerio Mailserver6.0.2
KerioKerio Mailserver6.0.3
KerioKerio Mailserver6.0.4
KerioKerio Mailserver6.0.5
KerioKerio Mailserver6.0.6
KerioKerio Mailserver6.0.7
KerioKerio Mailserver6.0.8
KerioKerio Mailserver6.0.9
KerioKerio Mailserver6.0.10
KerioKerio Mailserver6.1.1
KerioKerio Mailserver6.1.2
KerioKerio Mailserver6.1.3
KerioKerio Mailserver6.1.3_patch_1
KerioKerio Mailserver6.1.4
KerioKerio Mailserver6.2.0
KerioKerio Mailserver6.2.1
KerioKerio Mailserver6.2.2
KerioKerio Mailserver6.3.0
KerioKerio Mailserver6.3.1
KerioKerio Mailserver6.3.1_p1
KerioKerio Mailserver6.3.1_p2
KerioKerio Mailserver6.4.0
KerioKerio Mailserver6.4.1
KerioKerio Mailserver6.4.2
KerioKerio Mailserver6.5.0
KerioKerio Mailserver6.5.1
KerioKerio Mailserver6.5.2
KerioKerio Mailserver6.6.0
KerioKerio Mailserver6.6.1

Showing 50 of 55 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-1506?
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.
How severe is CVE-2011-1506?
Severity scoring for CVE-2011-1506 is pending analysis. The EPSS model estimates a 2.47% probability of exploitation in the next 30 days.
How do I fix CVE-2011-1506?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST