Apache HTTP Server up to 2.4.24 Response Split data processing

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apache HTTP Server up to 2.4.24. This vulnerability affects unknown code of the component Response Handler. The manipulation leads to data processing (Split). This vulnerability is referenced as CVE-2016-8743. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache HTTP Server up to 2.4.24 (Web Server). It has been rated as critical. This issue affects some unknown processing of the component Response Handler. The manipulation with an unknown input leads to a data processing vulnerability (Split). Using CWE to declare the problem leads to CWE-19. Impacted is availability.

The bug was discovered 12/20/2016. The weakness was published 12/20/2016 by Sergey Bobrov as Apache HTTP Server 2.4.25 Released as confirmed release notes (Website). The advisory is shared at httpd.apache.org. The identification of this vulnerability is CVE-2016-8743 since 10/18/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 102178 (Amazon Linux AMI : httpd24 (ALAS-2017-863)), 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 l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370348 (Apple Mac OS X Security Update Sierra 10.12.4, El Capitan 2017-001 and Yosemite 2017-001 Not Installed (APPLE-SA-2017-03-27-3)).

Upgrading to version 2.4.25 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 (102178), SecurityFocus (BID 105093†) and SecurityTracker (ID 1037508†). Similar entries are available at VDB-67180, VDB-67181, VDB-67182 and VDB-67183. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Split
Class: Data processing / Split
CWE: CWE-19
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: 102178
Nessus Name: Amazon Linux AMI : httpd24 (ALAS-2017-863)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: HTTP Server 2.4.25

Timelineinfo

10/18/2016 🔍
12/20/2016 +63 days 🔍
12/20/2016 +0 days 🔍
12/20/2016 +0 days 🔍
12/21/2016 +1 days 🔍
12/22/2016 +1 days 🔍
07/27/2017 +217 days 🔍
08/04/2017 +8 days 🔍
08/14/2018 +375 days 🔍
10/12/2022 +1520 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: Apache HTTP Server 2.4.25 Released
Researcher: Sergey Bobrov
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-8743 (🔍)
GCVE (CVE): GCVE-0-2016-8743
GCVE (VulDB): GCVE-100-94625

OVAL: 🔍

SecurityFocus: 105093 - Apache HTTP Server CVE-2016-4975 HTTP Response Splitting Vulnerability
SecurityTracker: 1037508

See also: 🔍

Entryinfo

Created: 12/22/2016 10:29
Updated: 10/12/2022 13:52
Changes: 12/22/2016 10:29 (71), 07/14/2019 17:32 (17), 10/12/2022 13:52 (4)
Complete: 🔍
Cache ID: 216:D23:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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