6.0
MEDIUM
CVE-2023-20234
"Cisco FXOS Software Command Injection Vulnerability"
Description

A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to create a file or overwrite any file on the filesystem of an affected device, including system files. The vulnerability occurs because there is no validation of parameters when a specific CLI command is used. An attacker could exploit this vulnerability by authenticating to an affected device and using the command at the CLI. A successful exploit could allow the attacker to overwrite any file on the disk of the affected device, including system files. The attacker must have valid administrative credentials on the affected device to exploit this vulnerability.

INFO

Published Date :

Aug. 23, 2023, 7:15 p.m.

Last Modified :

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

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.2

Exploitability Score :

0.8
Affected Products

The following products are affected by CVE-2023-20234 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 adaptive_security_appliance_software
2 Cisco firepower_threat_defense
3 Cisco firepower_extensible_operating_system
: Total Affected Vendor : 1 | Products : 3
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-2023-20234.

URL Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-arbitrary-file-BLk6YupL 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-2023-20234 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-20234 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-73
  • Initial Analysis by [email protected]

    Sep. 05, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
    Changed Reference Type https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-arbitrary-file-BLk6YupL No Types Assigned https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-arbitrary-file-BLk6YupL Vendor Advisory
    Added CWE NIST CWE-732
    Added CPE Configuration AND OR *cpe:2.3:a:cisco:firepower_extensible_operating_system:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:firepower_1000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1020:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1030:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1040:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_2100:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4100:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4110:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4110_next-generation_firewall:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4112:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4115:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4120:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4120_next-generation_firewall:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4125:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4140:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4140_next-generation_firewall:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4145:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4150:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_4150_next-generation_firewall:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_security_appliance:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_sm-24:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_sm-36:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_sm-40:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_sm-44:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_sm-44_x_3:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_sm-48:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_sm-56:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_sm-56_x_3:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_with_1_sm-24_module:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_with_1_sm-36_module:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_with_1_sm-44_module:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_9300_with_3_sm-44_module:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:secure_firewall_3105:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:secure_firewall_3110:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:secure_firewall_3120:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:secure_firewall_3130:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:secure_firewall_3140:-:*:*:*:*:*:*:*
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-2023-20234 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-20234 weaknesses.

CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-76: Manipulating Web Input to File System Calls Manipulating Web Input to File System Calls CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs Accessing Functionality Not Properly Constrained by ACLs CAPEC-17: Using Malicious Files Using Malicious Files CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-61: Session Fixation Session Fixation CAPEC-62: Cross Site Request Forgery Cross Site Request Forgery CAPEC-122: Privilege Abuse Privilege Abuse CAPEC-127: Directory Indexing Directory Indexing CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels Exploiting Incorrectly Configured Access Control Security Levels CAPEC-206: Signing Malicious Code Signing Malicious Code CAPEC-234: Hijacking a privileged process Hijacking a privileged process CAPEC-642: Replace Binaries Replace Binaries
Exploit Prediction

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

0.04 }} 0.00%

score

0.05703

percentile

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