Authentication Bypass Vulnerability in TBK and Rebranded DVR Devices
CVE-2018-9995

9.8CRITICAL

Key Information:

Vendor

Tbkvision

Status
Tbk-dvr4216 Firmware
Vendor
CVE Published:
10 April 2018

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 94%

What is CVE-2018-9995?

Certain DVR devices, including the TBK DVR4104 and DVR4216 models, as well as various rebranded variants, are susceptible to a remote authentication bypass. By manipulating the 'Cookie: uid=admin' header, attackers can access sensitive functionalities without proper authentication. This vulnerability effectively allows unauthorized users to interact with device settings and potentially access video feeds. Notably, this issue can be exploited through specific requests that yield JSON data responses containing sensitive credentials.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-9995_dvr_credentials
Created by ezelf

DVR-Exploiter
Created by Cyb0r9

cve-2018-9995
Created by shacojx

References

https://www.bleepingcomputer.com/news/security/new-hackin...
x_refsource_MISC
https://www.exploit-db.com/exploits/44577/
exploitx_refsource_EXPLOIT-DB
http://misteralfa-hack.blogspot.cl/2018/04/tbk-vision-dvr...
x_refsource_MISC

EPSS Score

94% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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