Vulnerability Description
Weaver e-Bridge contains an unauthenticated arbitrary file read vulnerability that allows remote attackers to access arbitrary files on the host system by supplying a file: URL to the downloadUrl parameter of the saveYZJFile endpoint. Attackers can exploit this flaw to read sensitive files such as /etc/passwd or configuration and credential files, and the same endpoint's support for http(s) URLs also enables server-side request forgery against internal network resources. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-17.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilit
- https://www.vulncheck.com/advisories/weaver-e-bridge-unauthenticated-arbitrary-f
- https://www.weaver.com.cn/cs/ebridge_full_log_en.html
FAQ
What is CVE-2020-37278?
CVE-2020-37278 is a vulnerability with a CVSS score of 7.5 (HIGH). Weaver e-Bridge contains an unauthenticated arbitrary file read vulnerability that allows remote attackers to access arbitrary files on the host system by supplying a file: URL to the downloadUrl para...
How severe is CVE-2020-37278?
CVE-2020-37278 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-37278?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.