CVE-2023-20273

7.2HIGH

Key Information

Vendor
Cisco
Status
Cisco IOS XE Software
Vendor
CVE Published:
25 October 2023

Badges

👾 Exploit Exists🔴 Public PoC📰 News Worthy

Summary

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to inject commands with the privileges of root. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web UI. A successful exploit could allow the attacker to inject commands to the underlying operating system with root privileges.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2023-20273 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Verify that instances of Cisco IOS XE Web UI are in compliance with BOD 23-02 and apply mitigations per vendor instructions. For affected products (Cisco IOS XE Web UI exposed to the internet or to untrusted networks), follow vendor instructions to determine if a system may have been compromised and immediately report positive findings to CISA.

Affected Version(s)

Cisco IOS XE Software = 16.1.1

Cisco IOS XE Software = 16.1.2

Cisco IOS XE Software = 16.1.3

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-2023-20273
Created by smokeintheshell

News Articles

favicon imageCSO Online

Cisco patches IOS XE vulnerabilities actively being exploited

CVE-2023-20198 and CVE-2023-20273 affect Cisco IOS XE software if the web UI feature is enabled.

11 months ago

favicon imageBleepingComputer

Cisco patches IOS XE zero-days used to hack over 50,000 devices

Cisco has addressed the two vulnerabilities (CVE-2023-20198 and CVE-2023-20273) that hackers exploited to compromise tens of thousands of IOS XE devices over the past week.

11 months ago

favicon imageThe Hacker News

Cisco Zero-Day Exploited to Implant Malicious Lua Backdoor on Thousands of Devices

🚨 Cisco issued an alert about a new zero-day vulnerability in IOS XE (CVE-2023-20273). Attackers are actively exploiting it to install malware.

11 months ago

EPSS Score

3% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published.

  • First article discovered by The Hacker News

  • 👾

    Exploit exists.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre DatabaseCISA Database1 Proof of Concept(s)3 News Article(s)
.