Xerox WorkCentre 4260 / 4265 Multiple Vulnerabilities (XRX15AV) (FREAK) (Logjam)

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote multi-function device is affected by multiple
vulnerabilities.

Description :

According to its model number and software version, the remote Xerox
WorkCentre 4260 / 4265 device is affected by multiple
vulnerabilities :

- A security feature bypass vulnerability, known as FREAK
(Factoring attack on RSA-EXPORT Keys), exists due to the
support of weak EXPORT_RSA cipher suites with keys less
than or equal to 512 bits. A man-in-the-middle attacker
may be able to downgrade the SSL/TLS connection to use
EXPORT_RSA cipher suites which can be factored in a
short amount of time, allowing the attacker to intercept
and decrypt the traffic. (CVE-2015-0204)

- A man-in-the-middle vulnerability, known as Logjam,
exists due to a flaw in the SSL/TLS protocol. A remote
attacker can exploit this flaw to downgrade connections
using ephemeral Diffie-Hellman key exchange to 512-bit
export-grade cryptography. (CVE-2015-4000)

- A TCP connection spoofing vulnerability exists due to
weak TCP initial sequence number (ISN) generation. A
man-in-the-middle attacker can exploit this to spoof TCP
connections or cause a denial of service.
(CVE-2015-3963)

Note that the FREAK (CVE-2015-0204) vulnerability on WorkCentre 4260
was fixed in a prior release.

See also :

http://www.nessus.org/u?0b2b309a
https://www.smacktls.com/#freak
http://weakdh.org/

Solution :

Apply the appropriate cumulative update as described in the Xerox
security bulletin in the referenced URL.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 3.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Misc.

Nessus Plugin ID: 87326 ()

Bugtraq ID: 71936
74733
75302

CVE ID: CVE-2015-0204
CVE-2015-4000
CVE-2015-3963

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