72186 : Cyrus IMAP Server STARTTLS Arbitrary Plaintext Command Injection
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Timeline

Disclosure Date
2011-03-30

Description

Cyrus IMAP Server contains a flaw related to the TLS implementation failing to properly clear transport layer buffers when changing from plaintext to ciphertext upon receipt of the 'STARTTLS' command. This may allow a remote attacker to inject arbitrary plaintext data which will be executed upon transition to ciphertext.

Classification

Location: Remote / Network Access
Attack Type: Cryptographic
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Upgrade to version 2.4.7 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Carnegie Mellon University
Cyrus IMAP Server
2.4.0
2.4.3
2.4.5
2.4.6

References

Tools & Filters

54639 55030 55065

Credit

CVSSv2 Score

CVSSv2 Base Score = 5.1
Source: nvd.nist.gov | Generated: 2011-05-24 | Disagree? | There are 1 more: View All

Access_vector_2 Access_complexity_0 Authentication_2 Confidentiality_impact_1 Integrity_impact_1 Availability_impact_1

Comments

No Comments.

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