Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability
CVE-2023-20126

9.8CRITICAL

Key Information:

Vendor
Cisco
Status
Cisco Small Business Ip Phones
Vendor
CVE Published:
4 May 2023

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A critical flaw in the web-based management interface of the Cisco SPA112 2-Port Phone Adapter allows unauthenticated attackers to execute arbitrary code. This vulnerability stems from an absence of authentication during the firmware upgrade process, which could enable an attacker to upload a malicious firmware version. If successfully exploited, the attacker gains complete system privileges, putting the device and potentially the larger network at significant risk. Cisco has not yet provided any firmware updates to mitigate this issue.

Affected Version(s)

Cisco Small Business IP Phones

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.

RancidCrisco
Created by fullspectrumdev

References

https://sec.cloudapps.cisco.com/security/center/content/C...
vendor-advisory

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

.