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TITLE:
Lotus Domino Webmail Information Disclosure Security Issue

SECUNIA ADVISORY ID:
SA16231

VERIFY ADVISORY:
http://secunia.com/advisories/16231/

CRITICAL:
Less critical

IMPACT:
Exposure of sensitive information

WHERE:
>From remote

SOFTWARE:
IBM Lotus Domino 5.x
http://secunia.com/product/207/
IBM Lotus Domino 6.x
http://secunia.com/product/720/

DESCRIPTION:
Leandro Meiners has reported a security issue in Lotus Domino, which
can be exploited by malicious users to disclose certain sensitive
information.

The security issue is caused due to the Webmail component including a
user's password information in HTML hidden fields when the user's
entry is viewed in the public address book. This can be exploited to
obtain other users' password hashes, password change dates, and other
sensitive information by viewing the HTML source.

Users' password hashes are susceptible to pre-computed dictionary
attacks, if they are generated without salt.

The security issue has been reported in versions 5.0, 6.0, and 6.5.

SOLUTION:
Configure Domino to store users' passwords using salted hashes and
not to include users' password hashes in HTML hidden fields.

PROVIDED AND/OR DISCOVERED BY:
Leandro Meiners, Cybsec S.A.

ORIGINAL ADVISORY:
IBM:
http://www-1.ibm.com/support/docview.wss?uid=swg21212934

Cybsec S.A.:
http://www.cybsec.com/vuln/default_configuration_information_disclosure_lotus_domino.pdf

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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http://secunia.com/about_secunia_advisories/


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