|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|
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
A vulnerability classified as critical has been found in Apple macOS up to 11.1 (Operating System). This affects some unknown processing of the component WebKit. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was shared 02/01/2021 as HT212147 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2021-1871 since 12/08/2020. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but an exploit is available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/23/2021). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:
A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
It is declared as functional.
Upgrading to version 11.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:
A logic issue was addressed with improved restrictions.
CVSSv3VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.9
VulDB Base Score: 6.3
VulDB Temp Score: 5.9
VulDB Vector: 🔒
VulDB Reliability: 🔍
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceThreat: 🔍
Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒
Upgrade: macOS 11.2
Timeline12/08/2020 CVE assigned
02/01/2021 +55 days Advisory disclosed
02/01/2021 +0 days Countermeasure disclosed
02/03/2021 +2 days VulDB entry created
02/23/2021 +20 days VulDB last update
CVE: CVE-2021-1871 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20180712
EntryCreated: 02/03/2021 02:14 PM
Updated: 02/23/2021 08:49 AM
Changes: (1) source_cve_assigned
Do you know our Splunk app?
Download it now for free!