Apple Mac OS X up to 10.11.3 OpenSSH resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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8.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple Mac OS X up to 10.11.3. Affected by this issue is some unknown functionality of the component OpenSSH. The manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2015-5333. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.11.3 (Operating System). It has been rated as very critical. This issue affects an unknown functionality of the component OpenSSH. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is confidentiality, and integrity.

The weakness was disclosed 03/21/2016 with Qualys as HT206167 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2015-5333 since 07/01/2015. 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 pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/11/2022). The advisory points out:

Multiple vulnerabilities existed in LibreSSL versions prior to 2.1.8. These were addressed by updating LibreSSL to version 2.1.8.

The vulnerability scanner Nessus provides a plugin with the ID 87314 (Mac OS X 10.11.x < 10.11.2 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 c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371218 (Apple macOS Mojave 10.14 Not Installed (APPLE-SA-2018-9-24-1)).

Upgrading to version 10.11.4 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 Tenable (87314) and SecurityFocus (BID 49124†). The entries VDB-58334, VDB-78550, VDB-78551 and VDB-79411 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.3

VulDB Base Score: 9.4
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87314
Nessus Name: Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-02 March-2016
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 10.11.4

Timelineinfo

07/01/2015 🔍
12/09/2015 +162 days 🔍
03/21/2016 +102 days 🔍
03/21/2016 +0 days 🔍
03/23/2016 +2 days 🔍
07/11/2022 +2301 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206167
Organization: Qualys
Status: Confirmed

CVE: CVE-2015-5333 (🔍)
GCVE (CVE): GCVE-0-2015-5333
GCVE (VulDB): GCVE-100-81467
SecurityFocus: 49124

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

Entryinfo

Created: 03/23/2016 12:39
Updated: 07/11/2022 09:19
Changes: 03/23/2016 12:39 (52), 09/09/2018 11:27 (10), 07/11/2022 09:14 (2), 07/11/2022 09:17 (20), 07/11/2022 09:19 (1)
Complete: 🔍
Cache ID: 216::103

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