Longjing Technology BEMS API <= 1.21 Remote Arbitrary File Download
Vulnerability Description
Longjing Technology BEMS API versions up to and including 1.21 contains an unauthenticated arbitrary file download vulnerability in the 'downloads' endpoint. The 'fileName' parameter is not properly sanitized, allowing attackers to craft traversal sequences and access sensitive files outside the intended directory.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Gjoko Krstic of Zero Science Lab
References
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5657.php
- https://www.exploit-db.com/exploits/50163
- https://packetstormsecurity.com/files/163702
- https://cxsecurity.com/issue/WLB-2021070173
- https://exchange.xforce.ibmcloud.com/vulnerabilities/206477
- https://web.archive.org/web/20220527162453/http://www.ljkj2012.com/
- https://www.vulncheck.com/advisories/longjing-technology-bems-api-remote-arbitrary-file-download
Affected Vendor
Shenzhen Longjing Technology Co. Ltd.
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