Vulnerability Name:

CVE-2017-3865 (CCN-127527)

Assigned:2016-12-21
Published:2017-06-21
Updated:2019-10-03
Summary:A vulnerability in the IPsec component of Cisco StarOS for Cisco ASR 5000 Series Routers could allow an unauthenticated, remote attacker to terminate all active IPsec VPN tunnels and prevent new tunnels from establishing, resulting in a denial of service (DoS) condition. Affected Products: ASR 5000 Series Routers, Virtualized Packet Core (VPC) Software. More Information: CSCvc21129. Known Affected Releases: 21.1.0 21.1.M0.65601 21.1.v0. Known Fixed Releases: 21.2.A0.65754 21.1.b0.66164 21.1.V0.66014 21.1.R0.65759 21.1.M0.65749 21.1.0.66030 21.1.0.
CVSS v3 Severity:5.8 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L)
5.1 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
5.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L)
5.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-3865

Source: BID
Type: Third Party Advisory, VDB Entry
99218

Source: CCN
Type: BID-99218
Cisco StarOS for ASR 5500 Series Routers CVE-2017-3865 Remote Denial of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1038748

Source: XF
Type: UNKNOWN
cisco-asr-cve20173865-dos(127527)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20170621-asr
Cisco StarOS for ASR 5000 Series Routers IPsec VPN Tunnel Denial of Service Vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-asr

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:staros:21.0.0:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:staros:21.0_m0.64246:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:staros:21.0_m0.64702:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:asr_5000_series:16.4.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco staros 21.0.0
    cisco staros 21.0_m0.64246
    cisco staros 21.0_m0.64702
    cisco asr 5000 series 16.4.1