Apple Safari up to 13.1.2 WebKit cross site scripting

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
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4.1$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Apple Safari up to 13.1.2 (Web Browser). Affected by this issue is an unknown functionality of the component WebKit. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. Impacted is integrity.

The weakness was disclosed 09/16/2020 by Ryan Pickren as HT211845 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2020-9952. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/17/2020). The MITRE ATT&CK project declares the attack technique as T1059.007. The advisory points out:

An input validation issue was addressed with improved input validation.

Upgrading to version 14.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 161360, 161365, 161369 and 161370 are pretty similar.

Productinfo

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Vendor

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cross site scripting
CWE: CWE-80 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
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: Safari 14.0

Timelineinfo

09/16/2020 🔍
09/16/2020 +0 days 🔍
09/17/2020 +1 days 🔍
09/17/2020 +0 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211845
Researcher: Ryan Pickren
Status: Confirmed

CVE: CVE-2020-9952 (🔍)
See also: 🔍

Entryinfo

Created: 09/17/2020 07:09
Updated: 09/17/2020 07:14
Changes: 09/17/2020 07:09 (45), 09/17/2020 07:14 (2)
Complete: 🔍

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