CVE-2019-12665 Cisco IOS and IOS XE Software HTTP Client Information Disclosure Vulnerability

Medium 4.8 Published 25 Sep 2019 Updated 21 Nov 2024

An unauthenticated remote attacker can read and modify encrypted HTTP data via man-in-the-middle attacks due to improper connection matching in Cisco IOS.

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-2019-12665?

CVE-2019-12665 is a medium-severity vulnerability in Cisco Ios, published on 25 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the HTTP client feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to read and modify data that should normally have been sent via an encrypted channel. The vulnerability is due to TCP port information not being considered when matching new requests to existing, persistent HTTP connections. An attacker could exploit this vulnerability by acting as a man-in-the-middle and then reading and/or modifying data that should normally have been sent through an encrypted channel.

Weakness: CWE-399

Which versions are affected by CVE-2019-12665?

It affects 1 product.

Products include Cisco Ios.

How do I fix CVE-2019-12665?

No fix has been published for CVE-2019-12665 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-12665 being exploited?

There is no known exploitation of CVE-2019-12665 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-23gj-4cxv-h5x2.