Apple Mac OS X 10.4.7 OpenSSH denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple Mac OS X 10.4.7. It has been classified as problematic. This vulnerability affects unknown code of the component OpenSSH. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-2006-0393. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in Apple Mac OS X 10.4.7 (Operating System). This affects an unknown code block of the component OpenSSH. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on confidentiality, and availability. The summary by CVE is:

OpenSSH in Apple Mac OS X 10.4.7 allows remote attackers to cause a denial of service or determine account existence by attempting to log in using an invalid user, which causes the server to hang.

The bug was discovered 08/01/2006. The weakness was disclosed 07/14/2006 by Rob Middleton (iDefense) with Mozilla Corporation (Website). The advisory is shared at us-cert.gov. This vulnerability is uniquely identified as CVE-2006-0393 since 01/24/2006. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

After even before and not, there has been an exploit disclosed. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 22125 (Mac OS X Multiple Vulnerabilities (Security Update 2006-004)), 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 115383 (Apple Mac OS X Security Update 2006-004 Not Installed (APPLE-SA-2006-08-01)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (28147), Tenable (22125), SecurityFocus (BID 19289†), OSVDB (27745†) and Secunia (SA21253†). The entries VDB-25512, VDB-26669, VDB-25873 and VDB-31631 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.8
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22125
Nessus Name: Mac OS X Multiple Vulnerabilities (Security Update 2006-004)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

01/24/2006 🔍
07/14/2006 +171 days 🔍
07/14/2006 +0 days 🔍
08/01/2006 +17 days 🔍
08/01/2006 +0 days 🔍
08/01/2006 +0 days 🔍
08/01/2006 +0 days 🔍
08/02/2006 +1 days 🔍
08/02/2006 +0 days 🔍
08/02/2006 +0 days 🔍
08/02/2006 +0 days 🔍
08/08/2006 +5 days 🔍
08/09/2006 +1 days 🔍
03/12/2015 +3137 days 🔍
06/22/2025 +3755 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: us-cert.gov
Researcher: Rob Middleton (iDefense)
Organization: Mozilla Corporation
Status: Confirmed

CVE: CVE-2006-0393 (🔍)
GCVE (CVE): GCVE-0-2006-0393
GCVE (VulDB): GCVE-100-31617
X-Force: 28147
SecurityFocus: 19289 - Apple Mac OS X Multiple Security Vulnerabilities
Secunia: 21253 - Mac OS X Security Update Fixes Multiple Vulnerabilities, Highly Critical
OSVDB: 27745 - Apple Mac OS X OpenSSH Nonexistent Account Login Enumeration DoS
SecurityTracker: 1016672
Vulnerability Center: 12488 - Apple Mac OS X 10.4.7 OpenSSH Remote Denial of Service by Logging in as an Invalid User, High
Vupen: ADV-2006-3101

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

Entryinfo

Created: 03/12/2015 14:25
Updated: 06/22/2025 05:55
Changes: 03/12/2015 14:25 (81), 06/24/2019 09:44 (11), 06/22/2025 05:55 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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