Apple macOS up to 10.13.1 apache data processing

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability was found in Apple macOS up to 10.13.1 (Operating System) and classified as critical. Affected by this issue is an unknown code block of the component apache. The manipulation with an unknown input leads to a data processing vulnerability. Using CWE to declare the problem leads to CWE-19. Impacted is integrity.

The bug was discovered 12/20/2016. The weakness was disclosed 10/31/2017 with X-Force as HT208221 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2016-8743 since 10/18/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

Multiple issues were addressed by updating to version 2.4.27.

The vulnerability was handled as a non-public zero-day exploit for at least 114 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 99329 (Oracle Linux 7 : httpd (ELSA-2017-0906)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle 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 10.13.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (99329). The entries 89669, 89849, 93958 and 94625 are pretty similar.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99329
Nessus Name: Oracle Linux 7 : httpd (ELSA-2017-0906)
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: macOS 10.13.1

Timelineinfo

10/18/2016 🔍
12/20/2016 +63 days 🔍
12/20/2016 +0 days 🔍
04/13/2017 +114 days 🔍
07/27/2017 +105 days 🔍
10/31/2017 +96 days 🔍
10/31/2017 +0 days 🔍
11/03/2017 +3 days 🔍
01/21/2021 +1175 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208221
Researcher: David Dennerline
Organization: X-Force
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-8743 (🔍)
OVAL: 🔍

SecurityTracker: 1037508
SecurityFocus: 95077 - Apache HTTP Server CVE-2016-8743 Security Bypass Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 11/03/2017 15:02
Updated: 01/21/2021 18:11
Changes: 11/03/2017 15:02 (80), 12/03/2019 08:55 (6), 01/21/2021 18:06 (4), 01/21/2021 18:11 (1)
Complete: 🔍

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