Critical severity · published Mar 5, 2021
CVE-2021-27964
SonLogger before 6.4.1 is affected by Unauthenticated Arbitrary File Upload
9.8
CVSS
47.5%
EPSS
No
On KEV
Description
SonLogger before 6.4.1 is affected by Unauthenticated Arbitrary File Upload. An attacker can send a POST request to /Config/SaveUploadedHotspotLogoFile without any authentication or session header. There is no check for the file extension or content of the uploaded file.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)47.5% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SO
Sonlogger · Sfcyazilim
before 6.4.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27964
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27964
Exploit
http://packetstormsecurity.com/files/161793/SonLogger-4.2.3.3-Shell-Upload.html
Exploit
https://github.com/erberkan/SonLogger-vulns
Release Notes
https://www.sonlogger.com/releasenotes
More from Sonlogger
8.2
CVE-2021-27963
SonLogger before 6.4.1 is affected by user creation with any user permissions profile (e.g., SuperAdmin)