Orange Applications for Business
Vigil@nce Vigil@nce Vigil@nce
analyzing computer vulnerabilities since 1999
  home presentation vulnerabilities documentation contact  
subscriber area subscriber area
free trial free trial
The Vigil@nce team watches vulnerabilities impacting your computers, and then offers security solutions, a database and tools to fix them.
recent vulnerabilities recent vulnerabilities
tracked products tracked products
RSS feed RSS feed

vulnerability announce CVE-2013-0149

OSPF: corrupting the routing database

Synthesis of the vulnerability

An attacker can spoof OSPF messages, in order to corrupt the routing database.
Impacted products: CheckPoint IP Appliance, IPSO, CheckPoint Security Gateway, Cisco ASR, ASA, Cisco Catalyst, IOS, IOS XE, Cisco Nexus, NX-OS, Cisco Router xx00 Series, ProCurve Switch, HP Switch, Juniper E-Series, Juniper J-Series, JUNOS, JUNOSe, NetScreen Firewall, ScreenOS, SUSE Linux Enterprise Desktop, SLES.
Severity: 3/4.
Creation date: 02/08/2013.
Revision date: 01/08/2014.
Identifiers: BID-61566, c03880910, CERTA-2013-AVI-458, CERTA-2013-AVI-487, CERTA-2013-AVI-508, cisco-sa-20130801-lsaospf, CQ95773, CSCug34469, CSCug34485, CSCug39762, CSCug39795, CSCug63304, CVE-2013-0149, HPSBHF02912, JSA10575, JSA10580, JSA10582, PR 878639, PR 895456, sk94490, SUSE-SU-2014:0879-1, VIGILANCE-VUL-13192, VU#229804.

Description of the vulnerability

The RFC 2328 defines the OSPF protocol (Open Shortest Path First) which established IP routes, using LSA (Link State Advertisement) messages.

The LSA Type 1 Update (LSU, Link-State Update) message is used to update the routing database. However, the RFC does not request to check the "Link State ID" and "Advertising Router" fields of LSU messages. Several implementations (Cisco, Juniper, etc.) therefore do not perform this check.

An attacker can thus spoof a LSU message if he knows:
 - the IP address of the target router
 - LSA DB sequence numbers
 - the router ID of the OSPF Designated Router

An attacker can therefore spoof OSPF messages, in order to corrupt the routing database.
Complete Vigil@nce bulletin.... (free trial)

Share this bulletin

Delicious Digg Facebook Google bookmarks LinkedIn Mail Reddit StumbleUpon Technorati Twitter 

Computer vulnerabilities tracking service

Vigil@nce provides applications vulnerabilities bulletins. The Vigil@nce security watch publishes vulnerability bulletins about threats impacting the information system. The Vigil@nce vulnerability database contains several thousand vulnerabilities. The Vigil@nce team tracks computer vulnerabilities impacting systems and applications.

Copyright 1999-2015 Vigil@nce. Vigil@nce is a service from Orange Applications for Business. Site map. Legal notice. Version française