Apple macOS up to 10.13.0 CFNetwork memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.13.0. It has been rated as critical. The affected element is an unknown function of the component CFNetwork. This manipulation causes memory corruption. This vulnerability is handled as CVE-2017-13833. It is possible to launch the attack on the local host. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Apple macOS up to 10.13.0 (Operating System) and classified as critical. Affected by this vulnerability is an unknown function of the component CFNetwork. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in certain Apple products. macOS before 10.13.1 is affected. The issue involves the "CFNetwork" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.

The bug was discovered 10/31/2017. The weakness was released 11/13/2017 as HT208221 as confirmed security advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2017-13833 since 08/30/2017. Attacking locally is a requirement. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 105080 (macOS 10.13.x < 10.13.2 Multiple Vulnerabilities (Meltdown)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370677 (Apple macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan Not Installed).

Upgrading to version 10.13.1 eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (105080) and SecurityFocus (BID 101981†). Entries connected to this vulnerability are available at VDB-103358, VDB-104406, VDB-104407 and VDB-104408. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105080
Nessus Name: macOS 10.13.x < 10.13.2 Multiple Vulnerabilities (Meltdown)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 64745
OpenVAS Name: Apple MacOSX Security Updates(HT208331)-02
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.13.1

Timelineinfo

08/30/2017 🔍
10/31/2017 +62 days 🔍
11/12/2017 +12 days 🔍
11/13/2017 +1 days 🔍
11/13/2017 +0 days 🔍
11/29/2017 +16 days 🔍
12/06/2017 +7 days 🔍
12/07/2017 +1 days 🔍
01/23/2021 +1143 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208221
Researcher: chethan177
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-13833 (🔍)
GCVE (CVE): GCVE-0-2017-13833
GCVE (VulDB): GCVE-100-109291
SecurityFocus: 101981 - Apple macOS CVE-2017-13872 Authentication Bypass Vulnerability
SecurityTracker: 1039952

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

Entryinfo

Created: 11/13/2017 08:24
Updated: 01/23/2021 10:30
Changes: 11/13/2017 08:24 (72), 12/05/2019 15:59 (13), 01/23/2021 10:27 (2), 01/23/2021 10:30 (1)
Complete: 🔍
Cache ID: 216:247:103

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