Vulnerability · Published Mar 5, 2021 · Assigned by mitre
CVE-2021-27964
Critical 9.8
In plain English
A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 47.5% (higher than 99% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)47.5%top 1.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Nuclei
Official 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.
Affected products (as reported)
References
- https://github.com/erberkan/SonLogger-vulns x_refsource_MISC
- https://www.sonlogger.com/releasenotes x_refsource_MISC
- http://packetstormsecurity.com/files/161793/SonLogger-4.2.3.3-Shell-Upload.html x_refsource_MISC