CVE-2021-34762

Cisco Firepower Management Center Software Authenticated Directory Traversal Vulnerability

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to perform a directory traversal attack on an affected device. The attacker would require valid device credentials. The vulnerability is due to insufficient input validation of the HTTPS URL by the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTPS request that contains directory traversal character sequences to an affected device. A successful exploit could allow the attacker to read or write arbitrary files on the device.

Una vulnerabilidad en la interfaz de administración basada en la web del software Cisco Firepower Management Center (FMC) podría permitir a un atacante remoto autenticado llevar a cabo un ataque de salto de directorio en un dispositivo afectado. El atacante necesitaría credenciales válidas del dispositivo. La vulnerabilidad es debido a una insuficiente comprobación de entrada de la URL HTTPS por parte de la interfaz de administración basada en web. Un atacante podría explotar esta vulnerabilidad mediante el envío de una petición HTTPS diseñada que contenga secuencias de caracteres de salto de directorio a un dispositivo afectado. Una explotación con éxito podría permitir al atacante leer o escribir archivos arbitrarios en el dispositivo

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-06-15 CVE Reserved
2021-10-27 CVE Published
2024-01-19 EPSS Updated
2024-11-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-26: Path Traversal: '/dir/../filename'

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-dir-traversal-95UyW5tk	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				6.2.3 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "6.2.3"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				6.4.0 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "6.4.0"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				6.5.0 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "6.5.0"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				6.6.1 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "6.6.1"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				6.6.2 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "6.6.2"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				6.6.3 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "6.6.3"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				6.6.4 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "6.6.4"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				6.7.0 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "6.7.0"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				7.0.0 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "7.0.0"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Virtual Appliance Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance"				7.1.0 Search vendor "Cisco" for product "Firepower Management Center Virtual Appliance" and version "7.1.0"		-		Affected
Cisco Search vendor "Cisco"		Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"				< 6.4.0.13 Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.4.0.13"		-		Affected
Cisco Search vendor "Cisco"		Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"				>= 6.5.0 < 6.6.5 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.5.0 < 6.6.5"		-		Affected
Cisco Search vendor "Cisco"		Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"				>= 6.7.0 < 6.7.0.3 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.7.0 < 6.7.0.3"		-		Affected
Cisco Search vendor "Cisco"		Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"				>= 7.0.0 < 7.0.1 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 7.0.0 < 7.0.1"		-		Affected
Cisco Search vendor "Cisco"		Sourcefire Defense Center Search vendor "Cisco" for product "Sourcefire Defense Center"				6.2.3 Search vendor "Cisco" for product "Sourcefire Defense Center" and version "6.2.3"		-		Affected
Cisco Search vendor "Cisco"		Sourcefire Defense Center Search vendor "Cisco" for product "Sourcefire Defense Center"				6.4.0 Search vendor "Cisco" for product "Sourcefire Defense Center" and version "6.4.0"		-		Affected
Cisco Search vendor "Cisco"		Sourcefire Defense Center Search vendor "Cisco" for product "Sourcefire Defense Center"				6.5.0 Search vendor "Cisco" for product "Sourcefire Defense Center" and version "6.5.0"		-		Affected
Cisco Search vendor "Cisco"		Sourcefire Defense Center Search vendor "Cisco" for product "Sourcefire Defense Center"				6.6.1 Search vendor "Cisco" for product "Sourcefire Defense Center" and version "6.6.1"		-		Affected
Cisco Search vendor "Cisco"		Sourcefire Defense Center Search vendor "Cisco" for product "Sourcefire Defense Center"				6.6.2 Search vendor "Cisco" for product "Sourcefire Defense Center" and version "6.6.2"		-		Affected
Cisco Search vendor "Cisco"		Sourcefire Defense Center Search vendor "Cisco" for product "Sourcefire Defense Center"				6.6.3 Search vendor "Cisco" for product "Sourcefire Defense Center" and version "6.6.3"		-		Affected
Cisco Search vendor "Cisco"		Sourcefire Defense Center Search vendor "Cisco" for product "Sourcefire Defense Center"				6.6.4 Search vendor "Cisco" for product "Sourcefire Defense Center" and version "6.6.4"		-		Affected
Cisco Search vendor "Cisco"		Sourcefire Defense Center Search vendor "Cisco" for product "Sourcefire Defense Center"				7.0.0 Search vendor "Cisco" for product "Sourcefire Defense Center" and version "7.0.0"		-		Affected