Apple macOS up to 11.0.1 Ruby path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple macOS up to 11.0.1 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Ruby. This manipulation causes path traversal. The identification of this vulnerability is CVE-2020-27896. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Apple macOS up to 11.0.1 (Operating System). It has been declared as critical. Affected by this vulnerability is an unknown part of the component Ruby. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 12/14/2020 as HT212011 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2020-27896. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue. The advisory points out:

A remote attacker may be able to modify the file system

Upgrading to version 11.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A path handling issue was addressed with improved validation.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 11.1

Timelineinfo

10/27/2020 🔍
12/14/2020 +48 days 🔍
12/14/2020 +0 days 🔍
12/15/2020 +1 days 🔍
12/18/2020 +3 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT212011
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-27896 (🔍)
GCVE (CVE): GCVE-0-2020-27896
GCVE (VulDB): GCVE-100-166309
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 12/15/2020 15:12
Updated: 12/18/2020 08:38
Changes: 12/15/2020 15:12 (7), 12/15/2020 15:13 (11), 12/15/2020 15:16 (28), 12/18/2020 08:34 (6), 12/18/2020 08:38 (18)
Complete: 🔍
Cache ID: 216::103

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