Apache HTTP Server 2.4.10 mod_proxy_fcgi.c handle_headers memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apache HTTP Server 2.4.10 and classified as problematic. This issue affects the function handle_headers of the file mod_proxy_fcgi.c. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2014-3583. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Apache HTTP Server 2.4.10 (Web Server). It has been rated as problematic. This issue affects the function handle_headers of the file mod_proxy_fcgi.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. The summary by CVE is:

The handle_headers function in mod_proxy_fcgi.c in the mod_proxy_fcgi module in the Apache HTTP Server 2.4.10 allows remote FastCGI servers to cause a denial of service (buffer over-read and daemon crash) via long response headers.

The weakness was published 11/12/2014 by Teguh P. Alko as Fixed in Apache httpd 2.4.11-dev as confirmed release notes (Website). It is possible to read the advisory at httpd.apache.org. The identification of this vulnerability is CVE-2014-3583 since 05/14/2014. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The advisory points out:

A malicious FastCGI server could send a carefully crafted response which could lead to a crash when reading past the end of a heap memory or stack buffer.

The vulnerability was handled as a non-public zero-day exploit for at least 56 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 81329 (Amazon Linux AMI : httpd24 (ALAS-2015-483)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350219 (Amazon Linux Security Advisory for httpd24: ALAS-2015-483).

Upgrading to version 2.4.11-dev eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (81329), SecurityFocus (BID 71657†), SecurityTracker (ID 1031371†) and Vulnerability Center (SBV-52615†). Similar entries are available at VDB-6090, VDB-6092, VDB-9602 and VDB-12741. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81329
Nessus Name: Amazon Linux AMI : httpd24 (ALAS-2015-483)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2015-483
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: HTTP Server 2.4.11-dev

Timelineinfo

05/14/2014 🔍
09/17/2014 +126 days 🔍
11/12/2014 +56 days 🔍
12/12/2014 +30 days 🔍
12/15/2014 +3 days 🔍
12/15/2014 +0 days 🔍
12/16/2014 +1 days 🔍
09/16/2015 +274 days 🔍
09/17/2015 +1 days 🔍
03/01/2022 +2357 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: Fixed in Apache httpd 2.4.11-dev
Researcher: Teguh P. Alko
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3583 (🔍)
GCVE (CVE): GCVE-0-2014-3583
GCVE (VulDB): GCVE-100-68435
SecurityFocus: 71657 - Apache HTTP Server 'mod_proxy_fcgi' Module Denial of Service Vulnerability
SecurityTracker: 1031371
Vulnerability Center: 52615 - Apache HTTP Server 2.4.10 Remote DoS via Long Response Headers, Medium

See also: 🔍

Entryinfo

Created: 12/16/2014 15:48
Updated: 03/01/2022 11:28
Changes: 12/16/2014 15:48 (68), 12/23/2017 13:12 (14), 03/01/2022 11:28 (3)
Complete: 🔍
Cache ID: 216:810:103

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