McAfee Email Gateway OpenSSL Multiple Vulnerabilities (SB10075)

This script is Copyright (C) 2014-2016 Tenable Network Security, Inc.


Synopsis :

The remote host is affected by multiple vulnerabilities related to the
included OpenSSL library.

Description :

The remote host is running a version of McAfee Email Gateway (MEG)
that is affected by the multiple vulnerabilities related to the
included OpenSSL library :

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

- An error exists related to the implementation of the
Elliptic Curve Digital Signature Algorithm (ECDSA) that
can allow nonce disclosure via the 'FLUSH+RELOAD' cache
side-channel attack. (CVE-2014-0076)

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

- An error exists in the function 'do_ssl3_write' that
can allow a NULL pointer to be dereferenced leading
to 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
can lead to denial of service attacks. Note that this
issue only affects OpenSSL when used as a DTLS client.
(CVE-2014-0221)

- An unspecified error exists that can allow an attacker
to cause usage of weak keying material leading to
simplified man-in-the-middle attacks. (CVE-2014-0224)

- An unspecified error exists related to anonymous ECDH
cipher suites that can allow denial of service attacks.
Note that this issue only affects OpenSSL TLS clients.
(CVE-2014-3470)

See also :

https://kc.mcafee.com/corporate/index?page=content&id=SB10075
https://www.openssl.org/news/secadv/20140605.txt

Solution :

Apply the relevant hotfix referenced in the vendor advisory.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.3
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

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