Apple MacOS X up to 10.10.2 Apache race condition

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Apple MacOS X up to 10.10.2 (Operating System). It has been classified as critical. Affected is some unknown functionality of the component Apache. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 04/08/2015 by Marek Kroemeke as HT204659 as confirmed advisory (Website). The advisory is available at This vulnerability is traded as CVE-2014-0226 since 12/02/2013. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The advisory points out:

Multiple vulnerabilities existed in Apache versions prior to 2.4.10 and 2.2.29, including one that may allow a remote attacker to execute arbitrary code. These issues were addressed by updating Apache to versions 2.4.10 and 2.2.29

A public exploit has been developed by Marek Kroemeke in Python and been published even before and not after the advisory. It is declared as proof-of-concept. The exploit is shared for download at The vulnerability scanner Nessus provides a plugin with the ID 78331 (Amazon Linux AMI : httpd (ALAS-2014-388)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185106 (HP-UX Apache Web Server Suite Remote Denial of Service Vulnerability (HPSBUX03337)).

Upgrading to version 10.10.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16631.

The vulnerability is also documented in the databases at SecurityTracker (ID 1032048), Vulnerability Center (SBV-56859), Tenable (78331) and Exploit-DB (34133). Entries connected to this vulnerability are available at 6090, 6092, 9602 and 67180.





CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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Class: Race condition
CWE: CWE-362
ATT&CK: Unknown

Local: No
Remote: Yes

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

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Nessus ID: 78331
Nessus Name: Amazon Linux AMI : httpd (ALAS-2014-388)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 702989
OpenVAS Name: Debian Security Advisory DSA 2989-1 (apache2 - security update)
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Threat Intelligenceinfo

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Recommended: Upgrade
Status: 🔍

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Upgrade: MacOS X 10.10.3
TippingPoint: 🔍

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12/02/2013 🔍
07/16/2014 +225 days 🔍
07/20/2014 +4 days 🔍
07/21/2014 +0 days 🔍
07/21/2014 +0 days 🔍
07/21/2014 +0 days 🔍
10/12/2014 +83 days 🔍
04/08/2015 +178 days 🔍
04/08/2015 +0 days 🔍
04/08/2015 +0 days 🔍
04/10/2015 +2 days 🔍
03/01/2016 +326 days 🔍
09/22/2022 +2395 days 🔍



Advisory: HT204659
Researcher: Marek Kroemeke
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0226 (🔍)

SecurityTracker: 1032048
Vulnerability Center: 56859 - [cpujan2015-1972971] Apache HTTP Server and Oracle Enterprise Manager and Oracle Secure Global Desktop Remote Code Execution in mod_status, Medium
SecurityFocus: 68678 - Apache HTTP Server 'mod_status' CVE-2014-0226 Remote Code Execution Vulnerability
Secunia: 60536
OSVDB: 109216

scip Labs:
See also: 🔍


Created: 04/10/2015 10:22 AM
Updated: 09/22/2022 03:59 PM
Changes: (1) advisory_falsepositive
Complete: 🔍


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