Strix
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CVE-2011-0411

UnknownEPSS 16.33%

Last modified

CVE-2011-0411 is a vulnerability of currently unknown severity. The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 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.. EPSS estimates a 16.33% chance of exploitation in the next 30 days.

Description

The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 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.

Metrics

EPSS Probability
16.33%

96.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PostfixPostfix2.4
PostfixPostfix2.4.0
PostfixPostfix2.4.1
PostfixPostfix2.4.2
PostfixPostfix2.4.3
PostfixPostfix2.4.4
PostfixPostfix2.4.5
PostfixPostfix2.4.6
PostfixPostfix2.4.7
PostfixPostfix2.4.8
PostfixPostfix2.4.9
PostfixPostfix2.4.10
PostfixPostfix2.4.11
PostfixPostfix2.4.12
PostfixPostfix2.4.13
PostfixPostfix2.4.14
PostfixPostfix2.4.15
PostfixPostfix2.5.0
PostfixPostfix2.5.1
PostfixPostfix2.5.2
PostfixPostfix2.5.3
PostfixPostfix2.5.4
PostfixPostfix2.5.5
PostfixPostfix2.5.6
PostfixPostfix2.5.7
PostfixPostfix2.5.8
PostfixPostfix2.5.9
PostfixPostfix2.5.10
PostfixPostfix2.5.11
PostfixPostfix2.6
PostfixPostfix2.6.0
PostfixPostfix2.6.1
PostfixPostfix2.6.2
PostfixPostfix2.6.3
PostfixPostfix2.6.4
PostfixPostfix2.6.5
PostfixPostfix2.6.6
PostfixPostfix2.6.7
PostfixPostfix2.6.8
PostfixPostfix2.7.0
PostfixPostfix2.7.1
PostfixPostfix2.7.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-0411?
The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 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.
How severe is CVE-2011-0411?
Severity scoring for CVE-2011-0411 is pending analysis. The EPSS model estimates a 16.33% probability of exploitation in the next 30 days.
How do I fix CVE-2011-0411?
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.

Are you affected by CVE-2011-0411?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST