CVE-2018-0271CWE-287

A vulnerability in the API gateway of the Cisco Digital Network Architecture (DNA) Center could allow an unauthenticated, remote attacker to bypass…

published May 17, 2018

CVSS
—
EPSS
3%
Percentile
84.8
In the wild
Unconfirmed
What it is

⚠️ A crafty URL can unlock the doors to critical services in Cisco's DNA Center! Just like a sneaky delivery driver skipping the security check, an attacker could exploit this vulnerability without breaking a sweat. 😱 Think of it as a restaurant that lets customers place orders without checking their IDs — anyone can walk in and request any dish without any verification. That’s how easily an attacker could access critical services here! If an attacker successfully exploits this vulnerability, they could gain unhindered access to your Cisco DNA Center, elevating their privileges and potentially wreaking havoc on your network. This could lead to sensitive data exposure or unauthorized control over critical network functions — a recipe for disaster!

Put simply

Think of it as a restaurant that lets customers place orders without checking their IDs — anyone can walk in and request any dish without any verification. That’s how easily an attacker could access critical services here! This vulnerability arises from a failure to properly normalize URLs before handling requests in the API gateway of the Cisco DNA Center. By crafting a specific URL, an attacker can bypass authentication mechanisms and gain unauthorized access to system services.

What to do

If an attacker successfully exploits this vulnerability, they could gain unhindered access to your Cisco DNA Center, elevating their privileges and potentially wreaking havoc on your network. This could lead to sensitive data exposure or unauthorized control over critical network functions — a recipe for disaster! To safeguard your network, upgrade all Cisco DNA Center Software versions to at least 1.1.2. Additionally, audit any configured services to ensure no unauthorized access has occurred, and implement strict URL validation procedures. 🛡️ You've got this! With these steps, you'll fortify your defenses and keep attackers at bay! 🚀

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02548 · 84.8th percentile
Weakness
CWE-287 · Improper Authentication
Published
2018-05-17T03:00Z
EPSS history
Timeline
  • 17 MAY 03:00Z
    A vulnerability in the API gateway of the Cisco Digital Network Architecture (DNA) Center could allow an unauthenticated, remote attacker to bypass…
    cvelistv5