Authentication Bypass in FiberHome VDSL2 Modem HG 150-UB
CVE-2018-9248

9.8CRITICAL

Key Information:

Vendor

Fiberhome

Status
Vdsl2 Modem Hg 150-ub Firmware
Vendor
CVE Published:
4 April 2018

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 69%

What is CVE-2018-9248?

The FiberHome VDSL2 Modem HG 150-UB contains a vulnerability that allows an attacker to bypass authentication mechanisms using a specially crafted Cookie header. By sending a 'Cookie: Name=0admin' request, unauthorized users can gain access to the modem's functionalities, potentially compromising the security of the network. This vulnerability emphasizes the importance of implementing robust security measures in networking devices to prevent unauthorized access.

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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-2018-9248 - Proof of Concept

References

https://www.exploit-db.com/exploits/44413/
exploitx_refsource_EXPLOIT-DB
https://gist.github.com/pak0s/cd7ac9c2ee659138816f92693d2...
x_refsource_MISC

EPSS Score

69% 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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