CVE-2019-1757 Cisco IOS and IOS XE Software Smart Call Home Certificate Validation Vulnerability

Medium 5.9 Published 28 Mar 2019 Updated 15 Nov 2024

An attacker can bypass certificate validation in Cisco Smart Call Home to perform man-in-the-middle attacks and decrypt confidential 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-2019-1757?

CVE-2019-1757 is a medium-severity vulnerability in Cisco Ios, published on 28 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 Smart Call Home feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data using an invalid certificate. The vulnerability is due to insufficient certificate validation by the affected software. 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 confidential information on user connections to the affected software.

Weakness: CWE-295

Which versions are affected by CVE-2019-1757?

It affects 2 products.

Products include Cisco Ios, Cisco Ios Xe.

How do I fix CVE-2019-1757?

No fix has been published for CVE-2019-1757 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1757 being exploited?

There is no known exploitation of CVE-2019-1757 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-pqr7-9qqq-hrh5.