Vulnerability CVE-2014-2146

Vulnerability Name:

CVE-2014-2146 (CCN-117435)

Assigned:

2014-02-25

Published:

2015-05-29

Updated:

2017-02-19

Summary:

The Zone-Based Firewall (ZBFW) functionality in Cisco IOS, possibly 15.4 and earlier, and IOS XE, possibly 3.13 and earlier, mishandles zone checking for existing sessions, which allows remote attackers to bypass intended resource-access restrictions via spoofed traffic that matches one of these sessions, aka Bug IDs CSCun94946 and CSCun96847.

CVSS v3 Severity:

6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): Low Availibility (A): None

CVSS v2 Severity:

4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
3.2 Low (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

Vulnerability Type:

CWE-20

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2014-2146

Source: BID
Type: UNKNOWN
93126

Source: XF
Type: UNKNOWN
ciscoios-cve20142146-sec-bypass(117435)

Source: CCN
Type: Cisco Alert ID: 39129
Multiple Cisco Products Zone-Based Firewall Security Bypass Vulnerability

Source: CISCO
Type: Vendor Advisory
20150529 Multiple Cisco Products Zone-Based Firewall Security Bypass Vulnerability

Vulnerable Configuration:

Configuration 1:

cpe:/o:cisco:ios:*:*:*:*:*:*:*:* (Version <= 15.4(1)t1)

OR cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version <= 15.4(3)s)

Configuration CCN 1:

cpe:/o:cisco:ios:15.4:*:*:*:*:*:*:*

Denotes that component is vulnerable

BACK