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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.5769 Cisco Firepower Threat Defense Software Privilege Escalation Vulnerability 10 November 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Firepower Threat Defense Software Publisher: Cisco Systems Operating System: Cisco Resolution: Patch/Upgrade CVE Names: CVE-2022-20949 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-mgmt-privesc-7GqR2th Comment: CVSS (Max): 6.5 CVE-2022-20949 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H) CVSS Source: Cisco Systems Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Firepower Threat Defense Software Privilege Escalation Vulnerability Priority: Medium Advisory ID: cisco-sa-ftd-mgmt-privesc-7GqR2th First Published: 2022 November 9 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCwb52401 CVE Names: CVE-2022-20949 CWEs: CWE-399 Summary o A vulnerability in the management web server of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker with high privileges to execute configuration commands on an affected system. This vulnerability exists because access to HTTPS endpoints is not properly restricted on an affected device. An attacker could exploit this vulnerability by sending specific messages to the affected HTTPS handler. A successful exploit could allow the attacker to perform configuration changes on the affected system, which should be configured and managed only through Cisco Firepower Management Center (FMC) Software. 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-mgmt-privesc-7GqR2th This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see Cisco Event Response: November 2022 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication . Affected Products o Vulnerable Products At the time of publication, this vulnerability affected Cisco products if they were running a vulnerable release of Cisco FTD Software managed by Cisco FMC Software and had HTTPS access enabled. For information about which Cisco software releases are vulnerable at the time of publication, see the Fixed Software section of this advisory. Determine the HTTPS Management Access Configuration To identify the status and port of the HTTPS management access, use the show running-config http CLI command. The following example shows the output of the show running-config http command on a device that has HTTPS management access enabled on the inside and outside interfaces using TCP port 8443: firepower# show running-config http http server enable 8443 http 0.0.0.0 0.0.0.0 inside http 0.0.0.0 0.0.0.0 outside If the line starting with http server enable does not include a port, the default port 443 is used. The exact port value does not affect the vulnerability status of the device. If the line starting with http server enable is missing, or the output does not include an HTTP access control list (ACL) associated with an interface, HTTPS management access is disabled. The exact value of the HTTP ACL does not affect the vulnerability status of the device. However, for successful exploitation, the attacker must be able to connect to the HTTPS management server of the device from an IP address that is permitted by the HTTP ACL. Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability. Cisco has confirmed that this vulnerability does not affect the following Cisco products: Adaptive Security Appliance (ASA) Software FMC Software Next-Generation Intrusion Prevention System (NGIPS) Software Workarounds o There are no workarounds that address this vulnerability. Fixed Software o 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. 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 . For instructions on upgrading your FTD device, see Cisco Firepower Management Center Upgrade Guide . Additional Resources For help determining the best Cisco ASA, FTD, or FMC Software release, see the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance. Cisco ASA Compatibility Cisco Secure Firewall ASA Upgrade Guide Cisco Secure Firewall Threat Defense Compatibility Guide Exploitation and Public Announcements o 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 o This vulnerability was found during internal security testing. Cisco Security Vulnerability Policy o 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. Related to This Advisory o Cisco Event Response: November 2022 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-mgmt-privesc-7GqR2th Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2022-NOV-09 | +----------+---------------------------+----------+--------+--------------+ - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBY2yB9skNZI30y1K9AQgC8A//VtW+RwKQX2/bjxqQ7ZXUeW0HYQReOT0V U14R0GJ87/Ly+kIa1uAFKEqPCUlB/C4xhlCexljeQJuaf/0J02nUr3vw6YIBTSW9 u2fZnOsQUGvDetWL/SMLnKC1Sw7x2CdQ8EMag9w//Nsz5bQlBq61IGO6J0JLlifZ ZUq6jN0bAYo/U0i4BtvvPScriFmiMHLyQoDk02JK1eko3myM/3Uo9xKzORmAa2Iz Lycc4MMfvjY9wHk6CvDvkjPVl1b+CbAOlQ0hPuAvakRXOBDmOTbbRrUlGn/EJraR D04xu3GtGJ+Q0B6Mc0wlPRYw614r1eioUTlP9aJ8V6GptN4sMIW9nrCMFTi7SVlR FmzMwgGjgIwjnFFDzsYu399ibjdYqhgjAbasUld6Pc+A6eiwWqH5QWtzWZu0lhgQ L9DmM/SdCNyYejmsiSHfg4+qKZdOaYJvB6aufoEemY8dCGNji9sBDJtppiXdcoZ9 VZxzCDmL8yB1BTAROaGACbd6mfE78X05a9dAbQXkVvqo3uxPKDY2nT0egW/lJvoG 2aYVHgrykrHHhmhuUR1k4aIN+aM0BiS8TlQBvNZByzzXSM1IUE0ACbEFGzBPMKbH h45V3oMnNpZOkfBMVGffurdr6UiAnKag7cOn0wspRDvngEk6xuDKywZxCalSrmUm MaZnkrCvb8E= =QCBx -----END PGP SIGNATURE-----