Paper/Archive/CVE-2020-36894

CVE-2020-36894

EIBIZ Co.,Ltd. i-Media Server Digital Signage — Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated User Creation Vulnerability

EPSS 0.8%public exploit CVSS 9.3

critical.is priorityof 100

CVSS 9.3 (CNA)9.3 / 10 × 3027.9 Not in CISA KEV+300.0 EPSS percentile 56.4.564 × 2011.3 Exploit: SSVC poc+1010.0 SSVC exploitation: poc+100.0

Description · from the CVE record

Eibiz i-Media Server Digital Signage 3.8.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to create admin users through AMF-encoded object manipulation. Attackers can send crafted serialized objects to the /messagebroker/amf endpoint to create administrative users without authentication, bypassing security controls.

Affected

ProductAffectedFixed inSource

i-Media Server Digital Signage≤ 3.8.0–CNA

Scores by source

VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitexploit-db.com/exploits/48763 exploitzeroscience.mk/en/vulnerabilities/ZSL-2020-5586.php writeupeibiz.co.th writeupvulncheck.com/advisories/eibiz-i-media-server-digital-signage-unauthenticated-user-creation-vulnerability