Business logic errors in Cisco ASA 5500-X Series - CVE-2018-0240

Vulnerability identifier: #VU12089

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-0240

CWE-ID: CWE-840

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the Application Layer Protocol Inspection feature due to logical errors during traffic inspection. A remote attacker can send a high volume of malicious traffic, trigger a deadlock condition and cause the service to crash.

Cisco ASA 5500-X Series
Allen-Bradley Stratix 5950 1783-SAD4T0SBK9
Allen-Bradley Stratix 5950 1783-SAD4T0SPK9
Allen-Bradley Stratix 5950 1783-SAD2T2SBK9
Allen-Bradley Stratix 5950 1783-SAD2T2SPK9

Update to versions 201.2(1.1), 201.1(15.7), 101.3(1.2), 99.1(20.148), 99.1(0.4), 98.2(10.4), 98.2(0.11), 97.1(0.170), 96.2(0.163), 9.9(1.77), 9.9(1), 9.8(2.235), 9.8(2.12), 9.7(1.17), 9.6(4), 9.6(3.18), 201.2(11.1), 201.2(1.22), 201.1(15.19), 101.4(1.14), 99.2(0.25), 99.1(20.186), 98.2(0.16), 97.1(0.177), 96.4(0.15), 9.9(2), 9.9(1.99), 9.9(1.4), 9.8(2.235), 9.8(2.218), 9.8(2.21), 9.7(1.115), 9.7(1.22), 9.6(4.6), 9.6(3.240), 9.6(3.27), 201.2(15.2), 201.2(11.1), 201.2(1.34), 201.2(1.32), 201.1(15.24), 201.1(15.23), 101.4(1.31), 101.4(1.29), 99.2(0.47), 99.2(0.44), 99.1(20.193), 99.1(20.192), 98.2(0.18), 97.1(0.178), 96.4(0.16), 9.9(2), 9.9(1.99), 9.9(1.4), 9.8(2.236), 9.8(2.235), 9.8(2.218), 9.8(2.22), 9.7(1.115), 9.7(1.23), 9.6(4.6), 9.6(3.240) or 9.6(3.28).

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa_inspect

• Multiple vulnerabilities in Cisco ASA 5500-X Series
• Multiple vulnerabilities in Rockwell Automation Allen-Bradley Stratix 5950