CVE-2021-34751: secure firewall — Fix

Description

A vulnerability in the administrative web-based GUI configuration manager of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to access sensitive configuration information. The attacker would require low privilege credentials on an affected device. This vulnerability exists because of improper encryption of sensitive information stored within the GUI configuration manager. An attacker could exploit this vulnerability by logging into the GUI of Cisco FMC Software and navigating to certain sensitive configurations. A successful exploit could allow the attacker to view sensitive configuration parameters in clear text.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.[[Publication_URL{Layout()}]]This advisory is part of the October 2021 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see . 

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-317 CWE-317

Affected Products

Vendor	Product	Versions
cisco	secure_firewall_management_center	< 6.4.0.13
cisco	secure_firewall_management_center	6.5.0 — 6.6.5.1
cisco	secure_firewall_management_center	6.7.0 — 6.7.0.3
cisco	secure_firewall_management_center	All

References

Advisories & Patches

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-infodisc-Ft2WVmNU

Frequently Asked Questions

What is CVE-2021-34751? +

A vulnerability in the administrative web-based GUI configuration manager of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to access sensitive configuration information. The attacker would require low privilege credentials on an affected device. This vulnerability exists because of improper encryption of sensitive information stored within the GUI configuration manager. An attacker could exploit this vulnerability by logging into the GUI of Cisco FMC Software and navigating to certain sensitive configurations. A successful exploit could allow the attacker to view sensitive configuration parameters in clear text.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.[[Publication_URL{Layout()}]]This advisory is part of the October 2021 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see .  It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2021-34751? +

CVE-2021-34751 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2021-34751? +

CVE-2021-34751 affects products from cisco, specifically: secure_firewall_management_center. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-34751? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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