OpenSSL 1.0.1 < 1.0.1h Multiple Vulnerabilities

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


Synopsis :

The remote service is affected by multiple vulnerabilities.

Description :

According to its banner, the remote web server uses a version of
OpenSSL 1.0.1 prior to 1.0.1h. The OpenSSL library is, therefore,
reportedly affected by the following vulnerabilities :

- 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)

- 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 :

http://www.openssl.org/news/vulnerabilities.html#CVE-2010-5298
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
http://www.openssl.org/news/secadv_20140605.txt
http://ccsinjection.lepidum.co.jp/
https://www.imperialviolet.org/2014/06/05/earlyccs.html

Solution :

Upgrade to OpenSSL 1.0.1h 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