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http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/


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TITLE:
Miranda TLS "STARTTLS" Security Bypass Security Issue

SECUNIA ADVISORY ID:
SA39346

VERIFY ADVISORY:
http://secunia.com/advisories/39346/

DESCRIPTION:
Jan Schejbal has discovered a security issue in Miranda, which can be
exploited by malicious people to bypass certain security
restrictions.

The security issue is caused due to Miranda falling back to
unencrypted connections if the server does not offer TLS encryption
via the "STARTTLS" command, which can be exploited to conduct
Man-in-the-Middle (MitM) attacks, although the "Use TLS" setting is
enabled.

The security issue is confirmed in version 0.8.19. Other versions may
also be affected.

SOLUTION:
Do not rely on TLS encryption. If available, use SSL as a workaround.

PROVIDED AND/OR DISCOVERED BY:
Jan Schejbal

ORIGINAL ADVISORY:
http://archives.neohapsis.com/archives/fulldisclosure/2010-04/0072.html

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