Vulnerability CVE-2017-2390

Vulnerability Name:

CVE-2017-2390 (CCN-123992)

Assigned:

2016-12-01

Published:

2017-03-27

Updated:

2019-10-03

Summary:

An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves symlink mishandling in the "libarchive" component. It allows local users to change arbitrary directory permissions via unspecified vectors.

CVSS v3 Severity:

5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)

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

4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)

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

CVSS v2 Severity:

2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)

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

2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

Vulnerability Type:

CWE-59

Vulnerability Consequences:

File Manipulation

References:

Source: MITRE
Type: CNA
CVE-2017-2390

Source: BID
Type: Third Party Advisory, VDB Entry
97137

Source: CCN
Type: BID-97137
Apple iOS/tvOS/macOS/watchOS Multiple Security Vulnerabilities

Source: SECTRACK
Type: UNKNOWN
1038138

Source: XF
Type: UNKNOWN
apple-macos-cve20172390-symlink(123992)

Source: CCN
Type: Apple security document HT207615
About the security content of macOS Sierra 10.12.4, Security Update 2017-001 El Capitan, and Security Update 2017-001 Yosemite

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207601

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207602

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207615

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207617

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version <= 10.2.1)

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version <= 10.12.3)

OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version <= 10.1.1)

OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version <= 3.1.3)

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.artful:def:20172390000	V	CVE-2017-2390 on Ubuntu 17.10 (artful) - medium.	2017-04-01
oval:com.ubuntu.xenial:def:201723900000000	V	CVE-2017-2390 on Ubuntu 16.04 LTS (xenial) - medium.	2017-04-01
oval:com.ubuntu.precise:def:20172390000	V	CVE-2017-2390 on Ubuntu 12.04 LTS (precise) - medium.	2017-04-01
oval:com.ubuntu.trusty:def:20172390000	V	CVE-2017-2390 on Ubuntu 14.04 LTS (trusty) - medium.	2017-04-01
oval:com.ubuntu.xenial:def:20172390000	V	CVE-2017-2390 on Ubuntu 16.04 LTS (xenial) - medium.	2017-04-01

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