Actu
Vigil@nce: Solaris, denial of service via IP Tunnel
December 2008 by Vigil@nce
SYNTHESIS
A local attacker can create a denial of service by using a IP
Tunnel ioctl.
Gravity: 2/4
Consequences: denial of service of computer
Provenance: user shell
Means of attack: no proof of concept, no attack
Ability of attacker: expert (4/4)
Confidence: confirmed by the editor (5/5)
Diffusion of the vulnerable configuration: high (3/3)
Creation date: 18/12/2008
IMPACTED PRODUCTS
– OpenSolaris
– Sun Solaris
DESCRIPTION
The SIOCGTUNPARAM ioctl, implemented in the ip_process_ioctl()
function of usr/src/uts/common/inet/ip/ip_if.c file, is used to
obtain parameters of an IP Tunnel.
A local attacker can use this ioctl in order to force the kernel
to dereference a NULL pointer.
The attacker can then create a denial of service, and eventually
execute code on a x86 platform.
CHARACTERISTICS
Identifiers: 242266, 6606222, BID-32904, CVE-2008-5689,
VIGILANCE-VUL-8345
