Vulnerability Monitor

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CVE-2018-0410

A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliances could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected software improperly manages memory resources for TCP connections to a targeted device. An attacker could exploit this vulnerability by establishing a high number of TCP connections to the data interface of an affected device via IPv4 or IPv6. A successful exploit could allow the attacker to exhaust system memory, which could cause the system to stop processing new connections and result in a DoS condition. System recovery may require manual intervention. Cisco Bug IDs: CSCvf36610.

Published

2018-08-15T20:29:00.657

Last Modified

2024-11-21T03:38:10.247

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 8.6 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-400
  • Type: Primary
    CWE-400
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco web_security_appliance 9.1.1-074 Yes
Application cisco web_security_appliance 9.1.2-010 Yes
Application cisco web_security_appliance 9.1.2-022 Yes
Application cisco web_security_appliance 9.1.2-039 Yes
Application cisco web_security_appliance 10.1.0-204 Yes
Application cisco web_security_appliance 10.1.1-235 Yes
Application cisco web_security_appliance 10.5.1-270 Yes
Application cisco web_security_appliance 10.5.1-296 Yes
Application cisco web_security_appliance 10.5.2-042 Yes
Application cisco web_security_appliance 11.0.0-641 Yes
References