FreeBSD : xinetd -- attackers can bypass access restrictions if tcpmux-servers service enabled (e11955ca-187c-11e2-be36-00215af774f0)

Medium Nessus Plugin ID 62612


The remote FreeBSD host is missing a security-related update.


Thomas Swan reports :

xinetd allows for services to be configured with the TCPMUX or TCPMUXPLUS service types, which makes those services available on port 1, as per RFC 1078 [1], if the tcpmux-server service is enabled. When the tcpmux-server service is enabled, xinetd would expose _all_ enabled services via the tcpmux port, instead of just the configured service(s). This could allow a remote attacker to bypass firewall restrictions and access services via the tcpmux port.


Update the affected package.

See Also

Plugin Details

Severity: Medium

ID: 62612

File Name: freebsd_pkg_e11955ca187c11e2be3600215af774f0.nasl

Version: $Revision: 1.2 $

Type: local

Published: 2012/10/18

Modified: 2013/06/22

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.3

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:xinetd, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2012/10/17

Vulnerability Publication Date: 2012/02/15

Reference Information

CVE: CVE-2012-0862