Apple Mac OS X 10.6 IPv6 Multicast MLD denial of service

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.7 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic has been found in Apple Mac OS X 10.6. This affects an unknown part of the component IPv6 Multicast MLD Handler. The manipulation with the input nmap -P0 -6 --script=targets-ipv6-multicast-mld [target] leads to denial of service.
Furthermore, an exploit is available. This vulnerability is considered historic because of its background and reception.
Details
A vulnerability, which was classified as critical, has been found in Apple Mac OS X 10.6 (Operating System). This issue affects some unknown processing of the component IPv6 Multicast MLD Handler. The manipulation with the input value nmap -P0 -6 --script=targets-ipv6-multicast-mld [target] leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.
The weakness was published 10/09/2012 by Nick Hacks (nickhacks) as 255775741101342720 as not defined tweet (Twitter). It is possible to read the advisory at twitter.com. The vendor was not involved in the public release. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/03/2019). Due to its background and reception, this vulnerability has a historic impact.
A public exploit has been developed by Nick Hacks (nickhacks) in Shell-Skript and been published immediately after the advisory. The exploit is available at twitter.com. It is declared as proof-of-concept.
Upgrading to version IPv6 eliminates this vulnerability. It is possible to mitigate the problem by applying the configuration setting networksetup -setv6off "Built-in Ethernet".Addressing this vulnerability is possible by firewalling IPv6. In an additional post, @nickhacks states: "Disabling IPv6 on the Snow Leopard host will prevent the DoS - credit: @tomneaves"
The vulnerability is also documented in the vulnerability database at OSVDB (86127†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Type
Vendor
Name
Version
License
Support
Website
- Vendor: https://www.apple.com/
CPE 2.3
CPE 2.2
Screenshot

CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 6.7
VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Nick Hacks (nickhacks)
Programming Language: 🔍
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍
Upgrade: Mac OS X IPv6
Config: networksetup -setv6off "Built-in Ethernet"
Firewalling: 🔍
Timeline
10/09/2012 🔍10/09/2012 🔍
10/11/2012 🔍
10/12/2012 🔍
04/03/2019 🔍
Sources
Vendor: apple.comAdvisory: 255775741101342720
Researcher: Nick Hacks (nickhacks)
Status: Not defined
GCVE (VulDB): GCVE-100-6635
OSVDB: 86127
scip Labs: https://www.scip.ch/en/?labs.20150108
Entry
Created: 10/12/2012 09:56Updated: 04/03/2019 10:42
Changes: 10/12/2012 09:56 (59), 04/03/2019 10:42 (2)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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