Apple Mac OS X Server prior 3.0 Server App missing encryption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Apple Mac OS X Server (Operating System). This issue affects an unknown function of the component Server App. The manipulation with an unknown input leads to a missing encryption vulnerability. Using CWE to declare the problem leads to CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. Impacted is confidentiality, and integrity. The summary by CVE is:

The RADIUS service in Server App in Apple OS X Server before 3.0 selects a fallback X.509 certificate in unspecified circumstances, which might allow man-in-the-middle attackers to hijack RADIUS sessions by leveraging knowledge of the private key that matches this fallback certificate.

The weakness was published 10/22/2013 by Arek Dreyer with Dreyer Network Consultants, Inc. as APPLE-SA-2013-10-22-5 as confirmed mailinglist post (Apple Security Mailinglist). It is possible to read the advisory at lists.apple.com. The mailinglist post contains:

A logic issue existed whereby the RADIUS service could choose an incorrect certificate from the list of configured certificates. The issue was addressed by using the same certificate as other services.
The identification of this vulnerability is CVE-2013-5143 since 08/15/2013. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 70590 (Mac OS X : OS X Server < 3.0 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.

Upgrading to version 3.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (88340) and Tenable (70590). Similar entries are available at 10949, 10950, 10954 and 10953.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Missing encryption
CWE: CWE-311 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 70590
Nessus Name: Mac OS X : OS X Server < 3.0 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Mac OS X Server 3.0

Timelineinfo

08/15/2013 🔍
10/22/2013 +68 days 🔍
10/22/2013 +0 days 🔍
10/22/2013 +0 days 🔍
10/22/2013 +0 days 🔍
10/23/2013 +1 days 🔍
10/24/2013 +1 days 🔍
02/25/2014 +124 days 🔍
06/01/2021 +2653 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2013-10-22-5
Researcher: Arek Dreyer
Organization: Dreyer Network Consultants, Inc.
Status: Confirmed

CVE: CVE-2013-5143 (🔍)
X-Force: 88340
Vulnerability Center: 43394 - Apple OS X Server Before 10.9 Remote Session Hijacking Vulnerability due to Improper Certificate Validation (CVE-2013-5143), Medium
SecurityFocus: 63285 - Apple Mac OS X Server CVE-2013-5143 Certificate Validation Security Bypass Vulnerability

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

Entryinfo

Created: 10/23/2013 17:41
Updated: 06/01/2021 08:52
Changes: 10/23/2013 17:41 (68), 05/22/2017 09:00 (2), 06/01/2021 08:52 (3)
Complete: 🔍

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