CVE-2019-1748 Cisco IOS and IOS XE Software Network Plug-and-Play Agent Certificate Validation Vulnerability

High 7.4 Published 27 Mar 2019 Updated 17 Sep 2024

An unauthenticated remote attacker can bypass certificate validation in the Cisco PnP agent to perform man-in-the-middle attacks, decrypting and modifying sensitive user data.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-1748?

CVE-2019-1748 is a high-severity vulnerability in Cisco Ios, published on 27 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Cisco Network Plug-and-Play (PnP) agent of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data. The vulnerability exists because the affected software insufficiently validates certificates. An attacker could exploit this vulnerability by supplying a crafted certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt and modify confidential information on user connections to the affected software.

Weakness: CWE-295

Which versions are affected by CVE-2019-1748?

It affects 2 products.

Products include Cisco Ios, Cisco Ios Xe.

How do I fix CVE-2019-1748?

No fix has been published for CVE-2019-1748 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1748 being exploited?

There is no known exploitation of CVE-2019-1748 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-gvw5-52ph-qgfq.