Vulnerability Name:

CVE-2019-12668 (CCN-167626)

Assigned:2019-09-25
Published:2019-09-25
Updated:2019-10-09
Summary:A vulnerability in the web framework code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web interface of the affected software using the banner parameter. The vulnerability is due to insufficient input validation of the banner parameters that are passed to the web server of the affected software. An attacker could exploit this vulnerability by crafting a banner parameter and saving it. The attacker could then convince a user of the web interface to access a malicious link or could intercept a user request for the affected web interface and inject malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information.
CVSS v3 Severity:4.8 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
4.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.7 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:M/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Multiple_Instances
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-79
Vulnerability Consequences:Cross-Site Scripting
References:Source: MITRE
Type: CNA
CVE-2019-12668

Source: XF
Type: UNKNOWN
cisco-cve201912668-xss(167626)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20190925-sbxss
Cisco IOS and IOS XE Software Stored Banner Cross-Site Scripting Vulnerability

Source: CISCO
Type: Vendor Advisory
20190925 Cisco IOS and IOS XE Software Stored Banner Cross-Site Scripting Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios:15.2(2)e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(2)ea:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(3)e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(3)ea:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(4)e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(4)ea:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(4)ec:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(5)e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(5)ea:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(5)ex:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(6)e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2(7)e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.6e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.7e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.8e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.9e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.10e:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version >= 16.1.1 and < 16.3.8)
  • OR cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version >= 16.4.1 and < 16.6.5)
  • OR cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version >= 16.7.1 and < 16.8.2)
  • OR cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version >= 16.9.1 and < 16.9.2)

    • Configuration CCN 1:
  • cpe:/o:cisco:ios_software:*:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe_software:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco ios 15.2(2)e
    cisco ios 15.2(2)ea
    cisco ios 15.2(3)e
    cisco ios 15.2(3)ea
    cisco ios 15.2(4)e
    cisco ios 15.2(4)ea
    cisco ios 15.2(4)ec
    cisco ios 15.2(5)e
    cisco ios 15.2(5)ea
    cisco ios 15.2(5)ex
    cisco ios 15.2(6)e
    cisco ios 15.2(7)e
    cisco ios xe 3.6e
    cisco ios xe 3.7e
    cisco ios xe 3.8e
    cisco ios xe 3.9e
    cisco ios xe 3.10e
    cisco ios xe *
    cisco ios xe *
    cisco ios xe *
    cisco ios xe *
    cisco ios software *
    cisco ios xe software *