Moderate
CVE-2020-10557
CVE ID
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CVE-2020-10557
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
An issue was discovered in AContent through 1.4. It allows the user to run commands on the server with a low-privileged account. The upload section in the file manager page contains an arbitrary file upload vulnerability via upload.php. The extension .php7 bypasses file upload restrictions.
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Ratings
-
Attacker ValueMedium
-
ExploitabilityVery High
Technical Analysis
I am the author of this exploit. The web application (from 2018) does not list .php7 and .phtml as illegal file extensions. Additionally, the web app has open registration so that anyone with an email can sign up. This allows for virtually anyone to obtain remote code execution on the server by uploading a malicious web shell.
Currently on the internet there are 2 live websites running this software.
POC is available on my GitHub: https://github.com/cinzinga/CVEs/tree/master/CVE-2020-10557
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General Information
Vendors
- atutor
Products
- acontent
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
