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URL:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-QXYE5Ufy
Submission: On October 23 via api (October 23rd 2024, 4:50:34 pm UTC) from TR — Scanned from DE

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Text Content

Home / Cisco Security / Security Advisories

CISCO SECURITY ADVISORY

CISCO FIREPOWER THREAT DEFENSE SOFTWARE FOR FIREPOWER 2100 SERIES TLS DENIAL OF
SERVICE VULNERABILITY

High
Advisory ID:
cisco-sa-ftd-tls-dos-QXYE5Ufy
First Published:
2024 October 23 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCwh68482

CVE-2024-20339

CWE-476

CVSS Score:
Base 8.6Click Icon to Copy Verbose Score
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X
CVE-2024-20339

CWE-476

Download CSAF

Email
SUMMARY

* A vulnerability in the TLS processing feature of Cisco Firepower Threat
Defense (FTD) Software for Cisco Firepower 2100 Series could allow an
unauthenticated, remote attacker to cause a denial of service (DoS) condition
on an affected device.

This vulnerability is due to an issue that occurs when TLS traffic is
processed. An attacker could exploit this vulnerability by sending certain
TLS traffic over IPv4 through an affected device. A successful exploit could
allow the attacker to cause the device to reload, resulting in a DoS
condition and impacting traffic to and through the affected device.

Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-QXYE5Ufy

This advisory is part of the October 2024 release of the Cisco ASA, FMC, and
FTD Software Security Advisory Bundled Publication. For a complete list of
the advisories and links to them, see Cisco Event Response: October 2024
Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled
Publication.

AFFECTED PRODUCTS

* VULNERABLE PRODUCTS

This vulnerability affects Cisco Firepower 2100 Series Firewalls if they are
running a vulnerable release of Cisco FTD Software and have a decryption
policy configured.

For information about which Cisco software releases are vulnerable, see the
Fixed Software section of this advisory.

Determine Whether a Decryption Policy Is Configured

To determine if a decryption policy is configured for Cisco Firepower Device
Manager (FDM), go to Policies > SSL Decryption. If SSL Decryption is enabled
and rules are defined, a decryption policy is configured.

PRODUCTS CONFIRMED NOT VULNERABLE

Cisco has confirmed that this vulnerability does not affect the following
Cisco products:

* Adaptive Security Appliance (ASA) Software
* FTD Software that is running on Firepower firewalls that are not part of
the 2100 Series
* Secure Firewall Management Center (FMC) Software, formerly Firepower
Management Center Software

WORKAROUNDS

* There are no workarounds that address this vulnerability.

FIXED SOFTWARE

* Cisco has released free software updates that address the vulnerability
described in this advisory. Customers with service contracts that entitle
them to regular software updates should obtain security fixes through their
usual update channels.

Customers may only install and expect support for software versions and
feature sets for which they have purchased a license. By installing,
downloading, accessing, or otherwise using such software upgrades, customers
agree to follow the terms of the Cisco software license:
https://www.cisco.com/c/en/us/products/end-user-license-agreement.html

Additionally, customers may only download software for which they have a
valid license, procured from Cisco directly, or through a Cisco authorized
reseller or partner. In most cases this will be a maintenance upgrade to
software that was previously purchased. Free security software updates do not
entitle customers to a new software license, additional software feature
sets, or major revision upgrades.

The Cisco Support and Downloads page on Cisco.com provides information about
licensing and downloads. This page can also display customer device support
coverage for customers who use the My Devices tool.

When considering software upgrades, customers are advised to regularly
consult the advisories for Cisco products, which are available from the Cisco
Security Advisories page, to determine exposure and a complete upgrade
solution.

In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release. If
the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance providers.

CUSTOMERS WITHOUT SERVICE CONTRACTS

Customers who purchase directly from Cisco but do not hold a Cisco service
contract and customers who make purchases through third-party vendors but are
unsuccessful in obtaining fixed software through their point of sale should
obtain upgrades by contacting the Cisco TAC:
https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html

Customers should have the product serial number available and be prepared to
provide the URL of this advisory as evidence of entitlement to a free
upgrade.

CISCO ASA, FMC, AND FTD SOFTWARE

To help customers determine their exposure to vulnerabilities in Cisco ASA,
FMC, and FTD Software, Cisco provides the Cisco Software Checker. This tool
identifies any Cisco security advisories that impact a specific software
release and the earliest release that fixes the vulnerabilities that are
described in each advisory (“First Fixed”). If applicable, the tool also
returns the earliest release that fixes all the vulnerabilities that are
described in all the advisories that the Software Checker identifies
(“Combined First Fixed”).

To use the tool, go to the Cisco Software Checker page and follow the
instructions. Alternatively, use the following form to search for
vulnerabilities that affect a specific software release. To use the form,
follow these steps:

1. Choose which advisories the tool will search-all advisories, only
advisories with a Critical or High Security Impact Rating (SIR), or only
this advisory.
2. Choose the appropriate software.
3. Choose the appropriate platform.
4. Enter a release number-for example, 9.16.2.11 for Cisco ASA Software or
6.6.7 for Cisco FTD Software.
5. Click Check.

Only this advisory All Critical and High advisories All advisories Cisco ASA
Software Cisco FMC Software Cisco FTD Software Any Platform 3000 Series
Industrial Security Appliances (ISA) ASA 5500-X Series Firewalls ASA Service
Module Adaptive Security Virtual Appliance (ASAv) Firepower 1000 Series
Firepower 2100 Series Firepower 4100 Series Firepower 9000 Series Firepower
NGFW Virtual Secure Firewall 3100 Series Firepower Management Center
Appliances

For instructions on upgrading a Cisco FTD device, see the appropriate Cisco
FMC upgrade guide.

EXPLOITATION AND PUBLIC ANNOUNCEMENTS

* The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described
in this advisory.

SOURCE

* This vulnerability was found during the resolution of a Cisco TAC support
case.

CISCO SECURITY VULNERABILITY POLICY

* To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy. This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.

SUBSCRIBE TO CISCO SECURITY NOTIFICATIONS

* Subscribe

RELATED TO THIS ADVISORY

* Cisco Event Response: October 2024 Cisco ASA, FMC, and FTD Software Security
Advisory Bundled Publication

URL

* https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-QXYE5Ufy

REVISION HISTORY

* Version Description Section Status Date 1.0 Initial public release. - Final
2024-OCT-23

Show Less

--------------------------------------------------------------------------------

LEGAL DISCLAIMER

* THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR
MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE
RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A standalone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy and may lack important information
or contain factual errors. The information in this document is intended for
end users of Cisco products.

FEEDBACK

*
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CISCO SECURITY VULNERABILITY POLICY

SUBSCRIBE TO CISCO SECURITY NOTIFICATIONS

* Subscribe

RELATED TO THIS ADVISORY

* Cisco Event Response: October 2024 Cisco ASA, FMC, and FTD Software Security
Advisory Bundled Publication

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sec.cloudapps.cisco.com Open in urlscan Pro 72.163.15.141 Public Scan

Form analysis 2 forms found in the DOM

Name: pdfGeneration — POST /security/center/downloadPDF.pdf

GET https://sec.cloudapps.cisco.com/security/center/softwarechecker.x?#~onStep3

Text Content

sec.cloudapps.cisco.com Open in urlscan Pro
72.163.15.141 Public Scan

Form analysis
2 forms found in the DOM