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Cisco IOS Next Hop Resolution protokol buffer overflow Advisory Available in English  Advisory Available in German 

Secunia Advisory: SA26360  
Udsendt: 2007-08-09
Sidste Opdt.: 2007-08-15

Kritisk:
Moderat kritisk
Betydning: DoS
Systemadgang
Hvor: Fra Lokalt Netværk
Løsning Status: Delvist Løst

OS:Cisco IOS 12.x
Cisco IOS R12.x


CVE reference:CVE-2007-4286 (Secunia mirror)



Beskrivelse:
Der er rapporteret en sårbarhed i Cisco IOS, som kan udnyttes af ondsindede personer til at udføre et DoS (Denial of Service) eller kompromittere et sårbart system.

Sårbarheden skyldes en ikke-kontrolleret buffer i implementationen af Next Hop Resolution Protocol. Dette kan udnyttes til at forårsage et buffer overflow via en specielt udformet NHRP-pakke med en ugyldig total-længde i headeren.

Succesfuld udnyttelse forudsætter, at understøttelse for Next Hop Resolution Protocol er aktiveret.

Løsning:
Installér opdaterede versioner, eller følg producentens workarounds (se producentens advisory for detaljer).

Rapporteret af / Kredit:
Producenten krediterer Martin Kluge.

Forløb:
10-08-2007: Tilføjede link til US-CERT.
15-08-2007: Tilføjede CVE-reference.

Original Advisory:
http://www.cisco.com/warp/public/707/cisco-sa-20070808-nhrp.shtml

Andre Kilder:
US-CERT VU#201984:
http://www.kb.cert.org/vuls/id/201984



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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