Apache HTTP Server up to 2.4.9 WinNT MPM resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Apache HTTP Server up to 2.4.9. This vulnerability affects unknown code of the component WinNT MPM. Executing a manipulation can lead to resource management. This vulnerability is registered as CVE-2014-3523. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apache HTTP Server up to 2.4.9 (Web Server) and classified as critical. This vulnerability affects an unknown functionality of the component WinNT MPM. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 07/15/2014 by Jeff Trawick with Apache as Fixed in Apache httpd 2.4.10-dev as confirmed advisory (Website). The advisory is shared for download at httpd.apache.org. This vulnerability was named CVE-2014-3523 since 05/14/2014. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

A flaw was found in the WinNT MPM in httpd versions 2.4.1 to 2.4.9, when using the default AcceptFilter for that platform. A remote attacker could send carefully crafted requests that would leak memory and eventually lead to a denial of service against the server.

The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 76622 (Apache 2.4.x < 2.4.10 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86171 (HP System Management Homepage Multiple Vulnerabilities (HPSBMU03380)).

Upgrading to version 2.4.10-dev 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 (94673), Tenable (76622), SecurityFocus (BID 68747†) and OSVDB (109230†). Similar entries are available at VDB-6090, VDB-6092, VDB-9602 and VDB-67181. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Resource management
CWE: CWE-399 / 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: 76622
Nessus Name: Apache 2.4.x < 2.4.10 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801284
OpenVAS Name: Apache HTTP Server Multiple Vulnerabilities May15
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: HTTP Server 2.4.10-dev

Timelineinfo

05/14/2014 🔍
07/01/2014 +48 days 🔍
07/15/2014 +14 days 🔍
07/15/2014 +0 days 🔍
07/15/2014 +0 days 🔍
07/18/2014 +3 days 🔍
07/20/2014 +2 days 🔍
07/21/2014 +1 days 🔍
02/09/2022 +2760 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: Fixed in Apache httpd 2.4.10-dev
Researcher: Jeff Trawick
Organization: Apache
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3523 (🔍)
GCVE (CVE): GCVE-0-2014-3523
GCVE (VulDB): GCVE-100-67180

IAVM: 🔍

X-Force: 94673 - Apache HTTP Server WinNT denial of service, Medium Risk
SecurityFocus: 68747 - Apache HTTP Server CVE-2014-3523 Remote Denial of Service Vulnerability
OSVDB: 109230

See also: 🔍

Entryinfo

Created: 07/18/2014 10:53
Updated: 02/09/2022 15:35
Changes: 07/18/2014 10:53 (72), 04/12/2019 09:41 (12), 02/09/2022 15:30 (2), 02/09/2022 15:35 (1)
Complete: 🔍
Cache ID: 216:6CD:103

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