Apple iCloud up to 7.1 on Windows WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple iCloud up to 7.1 on Windows. This affects an unknown function of the component WebKit. This manipulation causes memory corruption. This vulnerability is registered as CVE-2017-13885. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iCloud up to 7.1 on Windows (Cloud Software). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component WebKit. 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. iOS before 11.2 is affected. Safari before 11.0.2 is affected. iCloud before 7.2 on Windows is affected. iTunes before 12.7.2 on Windows is affected. tvOS before 11.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

The bug was discovered 01/22/2018. The weakness was published 04/03/2018 by Jeonghoon Shin (OSS-Fuzz) with Theori (Website). The advisory is shared at usn.ubuntu.com. This vulnerability is known as CVE-2017-13885 since 08/30/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 106594 (Fedora 26 : webkitgtk4 (2018-43712163de)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171677 (SUSE Enterprise Linux Security Update for webkit2gtk3 (SUSE-SU-2018:3387-1)).

Upgrading to version 7.2 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (106594) and SecurityFocus (BID 102775†). Similar entries are available at VDB-110748, VDB-110749, VDB-110750 and VDB-110751. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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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: 106594
Nessus Name: Fedora 26 : webkitgtk4 (2018-43712163de)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54558
OpenVAS Name: Fedora Update for webkitgtk4 FEDORA-2018-43712163de
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iCloud 7.2

Timelineinfo

08/30/2017 🔍
01/22/2018 +145 days 🔍
01/23/2018 +1 days 🔍
02/02/2018 +10 days 🔍
02/05/2018 +3 days 🔍
04/03/2018 +57 days 🔍
04/03/2018 +0 days 🔍
04/03/2018 +0 days 🔍
02/26/2023 +1790 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: FEDORA-2018-43712163de
Researcher: Jeonghoon Shin (OSS-Fuzz)
Organization: Theori
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-13885 (🔍)
GCVE (CVE): GCVE-0-2017-13885
GCVE (VulDB): GCVE-100-115585
SecurityFocus: 102775 - WebKit Multiple Memory Corruption Vulnerabilities

See also: 🔍

Entryinfo

Created: 04/03/2018 14:32
Updated: 02/26/2023 11:29
Changes: 04/03/2018 14:32 (77), 01/20/2020 13:41 (7), 02/26/2023 11:22 (4), 02/26/2023 11:29 (1)
Complete: 🔍
Cache ID: 216::103

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

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