Vulnerability Name:

CVE-2015-6271 (CCN-105966)

Assigned:2015-08-27
Published:2015-08-27
Updated:2017-09-20
Summary:Cisco IOS XE 2.1.0 through 2.4.3 and 2.5.0 on ASR 1000 devices, when NAT Application Layer Gateway is used, allows remote attackers to cause a denial of service (Embedded Services Processor crash) via a crafted SIP packet, aka Bug IDs CSCta74749 and CSCta77008.
CVSS v3 Severity:7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
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): 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)
5.8 Medium (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC: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)
5.8 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C/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): None
Availibility (A): Complete
Vulnerability Type:CWE-399
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2015-6271

Source: CCN
Type: Cisco Vulnerability Alert 40688
Cisco ASR 1000 Series Aggregation Services Routers Crafted SIP Packet Denial of Service Vulnerabilities

Source: CISCO
Type: Vendor Advisory
20150827 Cisco ASR 1000 Series Aggregation Services Routers Crafted SIP Packet Denial of Service Vulnerabilities

Source: SECTRACK
Type: UNKNOWN
1033410

Source: XF
Type: UNKNOWN
cisco-asr-cve20156271-dos(105966)

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios_xe:2.1.0:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.1.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.1.2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.1.3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.2.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.2.2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.2.3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.3.0:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.3.0t:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.3.1t:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.3.2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.4.0:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.4.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.4.2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.4.3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:2.5.0:*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asr_1001:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_1001-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_1002:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_1002-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_1004:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_1006:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asr_1013:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/h:cisco:asr_1000_series:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco ios xe 2.1.0
    cisco ios xe 2.1.1
    cisco ios xe 2.1.2
    cisco ios xe 2.1.3
    cisco ios xe 2.2.1
    cisco ios xe 2.2.2
    cisco ios xe 2.2.3
    cisco ios xe 2.3.0
    cisco ios xe 2.3.0t
    cisco ios xe 2.3.1t
    cisco ios xe 2.3.2
    cisco ios xe 2.4.0
    cisco ios xe 2.4.1
    cisco ios xe 2.4.2
    cisco ios xe 2.4.3
    cisco ios xe 2.5.0
    cisco asr 1001 -
    cisco asr 1001-x -
    cisco asr 1002 -
    cisco asr 1002-x -
    cisco asr 1004 -
    cisco asr 1006 -
    cisco asr 1013 -
    cisco asr 1000 series -