7.5
HIGH
CVE-2023-20155
"Cisco Firepower Management Center FMC Unauthenticated Denial of Service (DoS) Vulnerability and Privilege Escalation"
Description

A vulnerability in a logging API in Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to cause the device to become unresponsive or trigger an unexpected reload. This vulnerability could also allow an attacker with valid user credentials, but not Administrator privileges, to view a system log file that they would not normally have access to. This vulnerability is due to a lack of rate-limiting of requests that are sent to a specific API that is related to an FMC log. An attacker could exploit this vulnerability by sending a high rate of HTTP requests to the API. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to the FMC CPU spiking to 100 percent utilization or to the device reloading. CPU utilization would return to normal if the attack traffic was stopped before an unexpected reload was triggered.

INFO

Published Date :

Nov. 1, 2023, 5:15 p.m.

Last Modified :

Jan. 25, 2024, 5:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-20155 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cisco firepower_management_center
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-20155.

URL Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-logview-dos-AYJdeX55 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-20155 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-20155 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jan. 25, 2024

    Action Type Old Value New Value
    Added CWE Cisco Systems, Inc. CWE-770
  • Initial Analysis by [email protected]

    Nov. 09, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-logview-dos-AYJdeX55 No Types Assigned https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-logview-dos-AYJdeX55 Vendor Advisory
    Added CWE NIST CWE-400
    Added CPE Configuration OR *cpe:2.3:a:cisco:firepower_management_center:*:*:*:*:*:*:*:* versions from (including) 6.2.3 up to (including) 6.2.3.18 *cpe:2.3:a:cisco:firepower_management_center:*:*:*:*:*:*:*:* versions from (including) 6.4.0 up to (including) 6.4.0.16 *cpe:2.3:a:cisco:firepower_management_center:*:*:*:*:*:*:*:* versions from (including) 6.6.0 up to (including) 6.6.7.1 *cpe:2.3:a:cisco:firepower_management_center:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (including) 7.0.5 *cpe:2.3:a:cisco:firepower_management_center:*:*:*:*:*:*:*:* versions from (including) 7.1.0 up to (including) 7.1.0.3 *cpe:2.3:a:cisco:firepower_management_center:*:*:*:*:*:*:*:* versions from (including) 7.2.0 up to (including) 7.2.3.1 *cpe:2.3:a:cisco:firepower_management_center:*:*:*:*:*:*:*:* versions from (including) 7.3.0 up to (including) 7.3.1.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-20155 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.10 }} 0.03%

score

0.41312

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability