High severity · published May 18, 2020
CVE-2020-12255
rConfig 3.9.4 is vulnerable to remote code execution due to improper validation in the file upload functionality
8.8
CVSS
58.1%
EPSS
No
On KEV
Description
rConfig 3.9.4 is vulnerable to remote code execution due to improper validation in the file upload functionality. vendor.crud.php accepts a file upload by checking content-type without considering the file extension and header. Thus, an attacker can exploit this by uploading a .php file to vendor.php that contains arbitrary PHP code and changing the content-type to image/gif.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)58.1% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RC
Rconfig · Rconfig
3.9.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-12255
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-12255
Third Party Advisory
https://gist.github.com/farid007/9f6ad063645d5b1550298c8b9ae953ff
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