Vulnerability Name:

CVE-2018-0410 (CCN-148400)

Assigned:2017-11-27
Published:2018-08-15
Updated:2019-10-09
Summary: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.
CVSS v3 Severity:8.6 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
7.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
8.6 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
7.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-400
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-0410

Source: BID
Type: Third Party Advisory, VDB Entry
105098

Source: CCN
Type: BID-105098
Cisco AsyncOS Software CVE-2018-0410 Denial Of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1041535

Source: XF
Type: UNKNOWN
cisco-cve20180410-dos(148400)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20180815-wsa-dos
Cisco Web Security Appliance Web Proxy Memory Exhaustion Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20180815 Cisco Web Security Appliance Web Proxy Memory Exhaustion Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:web_security_appliance:9.1.1-074:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:9.1.2-010:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:9.1.2-022:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:9.1.2-039:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:10.1.0-204:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:10.1.1-235:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:10.5.1-270:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:10.5.1-296:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:10.5.2-042:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:web_security_appliance:11.0.0-641:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:web_security_appliance:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco web security appliance 9.1.1-074
    cisco web security appliance 9.1.2-010
    cisco web security appliance 9.1.2-022
    cisco web security appliance 9.1.2-039
    cisco web security appliance 10.1.0-204
    cisco web security appliance 10.1.1-235
    cisco web security appliance 10.5.1-270
    cisco web security appliance 10.5.1-296
    cisco web security appliance 10.5.2-042
    cisco web security appliance 11.0.0-641
    cisco web security appliance *