Vulnerability CVE-2017-2521

Vulnerability Name:

CVE-2017-2521 (CCN-126081)

Assigned:

2016-12-01

Published:

2017-05-10

Updated:

2019-03-21

Summary:

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. tvOS before 10.2.1 is affected. watchOS before 3.2.2 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.

CVSS v3 Severity:

8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-119

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2017-2521

Source: BID
Type: Third Party Advisory, VDB Entry
98456

Source: CCN
Type: BID-98456
WebKit CVE-2017-2521 Unspecified Memory Corruption Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1038487

Source: XF
Type: UNKNOWN
apple-cve20172521-code-exec(126081)

Source: GENTOO
Type: Third Party Advisory
GLSA-201706-15

Source: CCN
Type: Apple security document HT207798
About the security content of iOS 10.3.2

Source: CCN
Type: Apple security document HT207800
About the security content of watchOS 3.2.2

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207798

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207800

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207801

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207804

Source: EXPLOIT-DB
Type: Exploit, Third Party Advisory, VDB Entry
42103

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-2521

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 10.3.2)

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.12.5)

OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 10.2.1)

OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 3.2.2)

Configuration CCN 1:

cpe:/o:apple:watchos:3.2.1:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.xenial:def:201725210000000	V	CVE-2017-2521 on Ubuntu 16.04 LTS (xenial) - medium.	2017-05-22
oval:com.ubuntu.artful:def:20172521000	V	CVE-2017-2521 on Ubuntu 17.10 (artful) - medium.	2017-05-22
oval:com.ubuntu.xenial:def:20172521000	V	CVE-2017-2521 on Ubuntu 16.04 LTS (xenial) - medium.	2017-05-22
oval:com.ubuntu.disco:def:201725210000000	V	CVE-2017-2521 on Ubuntu 19.04 (disco) - medium.	2017-05-22
oval:com.ubuntu.bionic:def:20172521000	V	CVE-2017-2521 on Ubuntu 18.04 LTS (bionic) - medium.	2017-05-22
oval:com.ubuntu.cosmic:def:201725210000000	V	CVE-2017-2521 on Ubuntu 18.10 (cosmic) - medium.	2017-05-22
oval:com.ubuntu.cosmic:def:20172521000	V	CVE-2017-2521 on Ubuntu 18.10 (cosmic) - medium.	2017-05-22
oval:com.ubuntu.bionic:def:201725210000000	V	CVE-2017-2521 on Ubuntu 18.04 LTS (bionic) - medium.	2017-05-22
oval:com.ubuntu.trusty:def:20172521000	V	CVE-2017-2521 on Ubuntu 14.04 LTS (trusty) - medium.	2017-05-22

BACK