McAfee Web Gateway Multiple OpenSSL Vulnerabilities (SB10075)

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


Synopsis :

The remote host is affected by multiple vulnerabilities.

Description :

The remote host is running a version of McAfee Web Gateway (MWG) that
is affected by multiple vulnerabilities due to flaws in the OpenSSL
library :

- An error exists in the function 'ssl3_read_bytes'
that could allow data to be injected into other
sessions or allow denial of service attacks. Note
this issue is only exploitable 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
could 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 could lead to execution of
arbitrary code. Note 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
could allow a NULL pointer to be dereferenced leading
to denial of service attacks. Note 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 lead to denial of service attacks. Note this
issue only affects OpenSSL when used as a DTLS client.
(CVE-2014-0221)

- An unspecified error exists that could 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
ciphersuites that could allow denial of service
attacks. Note 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
http://www.openssl.org/news/vulnerabilities.html#CVE-2010-5298
http://www.openssl.org/news/vulnerabilities.html#2014-0076
http://www.openssl.org/news/vulnerabilities.html#CVE-2014-0198
http://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221
http://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224
http://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470

Solution :

Apply the relevant patch per 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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