Drupal up to 7.73/8.8.10/8.9.8/9.0.7 File unrestricted upload
|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 Drupal up to 7.73/8.8.10/8.9.8/9.0.7 (Content Management System). This affects some unknown processing of the component File Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-434. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Drupal core does not properly sanitize certain filenames on uploaded files, which can lead to files being interpreted as the incorrect extension and served as the wrong MIME type or executed as PHP for certain hosting configurations. This issue affects: Drupal Drupal Core 9.0 versions prior to 9.0.8, 8.9 versions prior to 8.9.9, 8.8 versions prior to 8.8.11, and 7 versions prior to 7.74.
The weakness was presented 11/21/2020 as sa-core-2020-012. The advisory is shared at drupal.org. This vulnerability is uniquely identified as CVE-2020-13671 since 05/28/2020. Access to the local network is required for this attack to succeed. Required for exploitation is a authentication. Neither technical details nor an exploit are publicly available.
Upgrading to version 7.74, 8.8.11, 8.9.9 or 9.0.8 eliminates this vulnerability.
CVSSv3VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
ExploitingClass: Privilege escalation
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍
Threat IntelligenceInterest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
0-Day Time: 🔍
Upgrade: Drupal 7.74/8.8.11/8.9.9/9.0.8
11/21/2020 +177 days 🔍
11/21/2020 +0 days 🔍
12/09/2020 +18 days 🔍
CVE: CVE-2020-13671 (🔍)
EntryCreated: 11/21/2020 07:19 AM
Updated: 12/09/2020 04:57 PM
Changes: (18) vulnerability_cvss2_nvd_basescore vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss3_nvd_basescore vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a
Want to stay up to date on a daily basis?
Enable the mail alert feature now!