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

Medium Nessus Plugin ID 87326


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


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.

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


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

See Also

Plugin Details

Severity: Medium

ID: 87326

File Name: xerox_xrx15av.nasl

Version: $Revision: 1.6 $

Type: remote

Family: Misc.

Published: 2015/12/11

Modified: 2016/08/16

Dependencies: 18141

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/h:xerox:workcentre

Required KB Items: www/xerox_workcentre, www/xerox_workcentre/model, www/xerox_workcentre/ssw

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/10/01

Vulnerability Publication Date: 2015/01/06

Reference Information

CVE: CVE-2015-0204, CVE-2015-4000, CVE-2015-3963

BID: 71936, 74733, 75302

OSVDB: 116794, 122331, 123469

CERT: 243585

IAVB: 2015-B-0082