Vulnerability · Published Sep 3, 2023 · Assigned by VulDB

CVE-2023-4739Byzoro Smart S85F Management Platform updateos.php unrestricted upload

Medium 6.3

In plain English

A medium-severity unrestricted file upload in Smart S85F Management Platform from Byzoro. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 3.6% (higher than 89% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)3.6%top 10.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability, which was classified as critical, has been found in Byzoro Smart S85F Management Platform up to 20230820. Affected by this issue is some unknown functionality of the file /sysmanage/updateos.php. The manipulation of the argument 1_file_upload leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-238628. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
Byzoro	Smart S85F Management Platform	20230820

Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

VDB-238628 | Byzoro Smart S85F Management Platform updateos.php unrestricted upload vdb-entry, technical-description
VDB-238628 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #197572 | A file upload vulnerability exists on the Smart S85F management platform third-party-advisory
https://github.com/Meizhi-hua/cve/blob/main/upload_file.md exploit