Vulnerability Name:

CVE-2013-6686 (CCN-88871)

Assigned:2013-11-13
Published:2013-11-13
Updated:2013-11-19
Summary:The SSL VPN implementation in Cisco IOS 15.3(1)T2 and earlier allows remote authenticated users to cause a denial of service (interface queue wedge) via crafted DTLS packets in an SSL session, aka Bug IDs CSCuh97409 and CSCud90568.
CVSS v3 Severity:5.7 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
5.0 Medium (Temporal CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
5.0 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2013-6686

Source: CCN
Type: SA55694
Cisco IOS SSL VPN Interface DTLS Packets Handling Denial of Service Vulnerability

Source: CCN
Type: Cisco Security Notice
Cisco IOS Software SSL VPN Interface Queue Wedge Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20131113 Cisco IOS Software SSL VPN Interface Queue Wedge Denial of Service Vulnerability

Source: CONFIRM
Type: Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=31757

Source: CCN
Type: OSVDB ID: 99752
Cisco IOS SSL VPN Datagram Transport Layer Security (DTLS) Function Crafted DTLS Packet Handling Remote DoS

Source: CCN
Type: BID-63699
Cisco IOS SSL VPN Interface CVE-2013-6686 Remote Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
cisco-ios-cve20136686-dos(88871)

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios:15.0:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.0(1)se:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:*:*:*:*:*:*:*:* (Version <= 15.3)

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

  • * Denotes that component is vulnerable
    BACK
    cisco ios 15.0
    cisco ios 15.0(1)se
    cisco ios 15.1
    cisco ios 15.2
    cisco ios *
    cisco ios *