Vulnerability Name:

CVE-2014-3396 (CCN-96825)

Assigned:2014-10-04
Published:2014-10-04
Updated:2014-10-06
Summary:Cisco IOS XR on ASR 9000 devices does not properly use compression for port-range and address-range encoding, which allows remote attackers to bypass intended Typhoon line-card ACL restrictions via transit traffic, aka Bug ID CSCup30133.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
5.5 Medium (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/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): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-264
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2014-3396

Source: CCN
Type: Cisco Security Notice
Cisco IOS XR Software Compression ACL Bypass Vulnerability

Source: CISCO
Type: Vendor Advisory
20141003 Cisco IOS XR Software Compression ACL Bypass Vulnerability

Source: CCN
Type: BID-70236
Cisco IOS XR Software CVE-2014-3396 Access List Security Bypass Vulnerability

Source: XF
Type: UNKNOWN
cisco-iosxr-cve20143396-sec-bypass(96825)

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios_xr:*:*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asr_9000_rsp440_router:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9001:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9006:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9010:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9904:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9912:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_9922:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:cisco:ios_xr:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    cisco ios xr *
    cisco asr 9000 rsp440 router -
    cisco asr 9001 -
    cisco asr 9006 -
    cisco asr 9010 -
    cisco asr 9904 -
    cisco asr 9912 -
    cisco asr 9922 -
    cisco ios xr *