18 Vulnerabilities that Affected Cisco Software’s Let Hackers Perform DOS, RCE to Gain Unauthorized System Access

Cisco released new security updates for multiple software products such as Cisco ASA, FMC, and FTD Software that affects 18 vulnerabilities in various category.

Cisco addressed all the 18 vulnerabilities as a “High” severity category, and the successful exploitation allows malicious hackers to gain unauthorized access to the systems deployed with vulnerable Cisco software.

All the vulnerabilities affected 3 major Cisco software 1. Cisco ASA Software, 2.Cisco FMC Software, and 3. Cisco FTD Software.

Out of 18 vulnerabilities,12 vulnerabilities affected Cisco FMC Software which is used in the Cisco Firepower Management Center Virtual Appliance, Four of the vulnerabilities affect both Cisco ASA Software, and Cisco FTD Software, another 2 vulnerabilities affected Cisco ASA Software and Cisco FTD Software respectively.

In this case, Cisco FMC Software is heavily impacted through some of the dangerous vulnerabilities that lead attackers to perform serious attacks such as SQL injection, command injection and remote code execution on the Cisco Firepower Management Center.

Cisco patched a remote code execution vulnerability ( CVE-2019-12687) that resides in the web UI of the Cisco Firepower Management Center (FMC) that allows attackers to execute arbitrary commands on the vulnerable devices.

There are 9 SQL injection vulnerabilities patched for Cisco FMC Software. These vulnerabilities exist due to improper input validation. An attacker could exploit these vulnerabilities by sending crafted SQL queries to an affected device.

“A successful exploit could allow the attacker to view information that they are not authorized to view, make changes to the system that they are not authorized to make, and execute commands within the underlying operating system that may affect the availability of the device.”

Another vulnerability (CVE-2019-12678) in Session Initiation Protocol (SIP) inspection module of Cisco Adaptive Security Appliance (ASA) Software let unauthenticated remote attacker perform DoS attack.

Cisco Security Updates

Cisco Security Advisory	CVE ID	Security Impact Rating	CVSS Base Score
cisco-sa-20191002-asa-dos Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software FTP Inspection Denial of Service Vulnerability	CVE-2019-12673	High	8.6
cisco-sa-20191002-asa-ftd-ikev1-dos Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Denial of Service Vulnerability	CVE-2019-15256	High	8.6
cisco-sa-20191002-asa-ospf-lsa-dos Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPF LSA Processing Denial of Service Vulnerability	CVE-2019-12676	High	7.4
cisco-sa-20191002-asa-ftd-sip-dos Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SIP Inspection Denial of Service Vulnerability	CVE-2019-12678	High	8.6
cisco-sa-20191002-asa-ssl-vpn-dos Cisco Adaptive Security Appliance Software SSL VPN Denial of Service Vulnerability	CVE-2019-12677	High	7.7
cisco-sa-20191002-fmc-com-inj Cisco Firepower Management Center Command Injection Vulnerability	CVE-2019-12690	High	7.2
cisco-sa-20191002-fmc-rce Cisco Firepower Management Center Remote Code Execution Vulnerability	CVE-2019-12687,CVE-2019-12688	High	8.8
cisco-sa-20191002-fmc-rce-12689 Cisco Firepower Management Center Remote Code Execution Vulnerability	CVE-2019-12689	High	7.5
cisco-sa-20191002-fmc-sql-inj Cisco Firepower Management Center SQL Injection Vulnerabilities	CVE-2019-12679,CVE-2019-12680,CVE-2019-12681,CVE-2019-12682,CVE-2019-12683,CVE-2019-12684,CVE-2019-12685,CVE-2019-12686	High	8.8
cisco-sa-20191002-ftd-container-esc Cisco Firepower Threat Defense Software Multi-instance Container Escape Vulnerabilities	CVE-2019-12675,CVE-2019-12674	High	8.2

Cisco advised to the affected customers to apply these patches immediately to keep the network and application safe and secure from cyber attack.

Cisco has released updates to address this vulnerability; you can find the advisory here.

Also Read: 10 Best Vulnerability Scanning Tools For Penetration Testing – 2019