Apple Mac OS X Server up to 10.5.0 accept_connections numeric error

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apple Mac OS X Server up to 10.5.0. This affects the function accept_connections. The manipulation leads to numeric error. This vulnerability is documented as CVE-2007-6276. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple Mac OS X Server up to 10.5.0 (Operating System). This issue affects the function accept_connections. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is availability. The summary by CVE is:

The accept_connections function in the virtual private network daemon (vpnd) in Apple Mac OS X 10.5 before 10.5.4 allows remote attackers to cause a denial of service (divide-by-zero error and daemon crash) via a crafted load balancing packet to UDP port 4112.

The bug was discovered 12/04/2007. The weakness was released 12/07/2007 with mu-b (Website). It is possible to read the advisory at milw0rm.com. The identification of this vulnerability is CVE-2007-6276 since 12/07/2007. 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.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 33281 (Mac OS X 10.5.x < 10.5.4 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115848 (Apple Mac OS X 10.5.4 and Security Update 2008-004 Not Installed (APPLE-SA-2008-06-30)).

Upgrading to version 10.5.1 eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (38855), Exploit-DB (4690), Tenable (33281), SecurityFocus (BID 26699†) and OSVDB (40278†). Entries connected to this vulnerability are available at VDB-3754, VDB-40922, VDB-43000 and VDB-42999. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 33281
Nessus Name: Mac OS X 10.5.x < 10.5.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 102032
OpenVAS Name: get_kb_item(ssh/login/osx_name
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X Server 10.5.1

Timelineinfo

12/04/2007 🔍
12/04/2007 +0 days 🔍
12/04/2007 +0 days 🔍
12/06/2007 +2 days 🔍
12/07/2007 +1 days 🔍
12/07/2007 +0 days 🔍
12/07/2007 +0 days 🔍
12/07/2007 +0 days 🔍
12/16/2007 +9 days 🔍
06/30/2008 +197 days 🔍
07/01/2008 +1 days 🔍
03/16/2015 +2449 days 🔍
05/31/2025 +3729 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: milw0rm.com⛔
Organization: mu-b
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-6276 (🔍)
GCVE (CVE): GCVE-0-2007-6276
GCVE (VulDB): GCVE-100-39971
X-Force: 38855
SecurityFocus: 26699 - Apple Mac OS X VPND Remote Denial of Service Vulnerability
Secunia: 27938 - Mac OS X vpnd Denial of Service Vulnerability, Moderately Critical
OSVDB: 40278 - CVE-2007-6276 - Apple - Mac OS X - Denial-Of-Service Issue
SecurityTracker: 1019052
Vulnerability Center: 17101 - Apple MacOS X Virtual Private Network Daemon (VPND) Allows Remote Attackers to Cause DoS, Low
Vupen: ADV-2007-4145

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 03/16/2015 13:43
Updated: 05/31/2025 15:06
Changes: 03/16/2015 13:43 (90), 08/01/2019 16:18 (5), 10/12/2024 07:27 (17), 05/31/2025 15:06 (2)
Complete: 🔍
Cache ID: 216:ECA:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!