Cerberus FTP Server 6.x < 6.0.10.0 / 7.x < 7.0.0.3 Multiple OpenSSL Vulnerabilities

This script is Copyright (C) 2014 Tenable Network Security, Inc.


Synopsis :

The FTP server installed on the remote Windows host is affected by
multiple OpenSSL vulnerabilities.

Description :

The version of Cerberus FTP Server on the remote host is version 6.x
prior to 6.0.10.0 or version 7.x prior to 7.0.0.3. It is, therefore,
affected by the following OpenSSL vulnerabilities :

- An error exists in the 'ssl3_read_bytes' function
that permits data to be injected into other sessions
or allows denial of service attacks. Note that this
issue is exploitable only if SSL_MODE_RELEASE_BUFFERS
is enabled. (CVE-2010-5298)

- A buffer overflow error exists related to invalid DTLS
fragment handling that permits the execution of
arbitrary code or allows denial of service attacks.
Note that this issue only affects OpenSSL when used
as a DTLS client or server. (CVE-2014-0195)

- An error exists in the 'do_ssl3_write' function that
permits a NULL pointer to be dereferenced, which could
allow denial of service attacks. Note that this issue
is exploitable only if SSL_MODE_RELEASE_BUFFERS is
enabled. (CVE-2014-0198)

- An error exists related to DTLS handshake handling that
could allow denial of service attacks. Note that this
issue only affects OpenSSL when used as a DTLS client.
(CVE-2014-0221)

- An error exists in the processing of ChangeCipherSpec
messages that allows the usage of weak keying material.
This permits simplified man-in-the-middle attacks to be
done. (CVE-2014-0224)

- An error exists in the 'dtls1_get_message_fragment'
function related to anonymous ECDH cipher suites. This
could allow denial of service attacks. Note that this
issue only affects OpenSSL TLS clients. (CVE-2014-3470)

See also :

http://www.cerberusftp.com/products/releasenotes.html
http://www.openssl.org/news/secadv_20140605.txt

Solution :

Upgrade to Cerberus FTP Server 6.0.10.0 / 7.0.0.3 or later.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.1
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true