Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Adjacent_network
0

CVE-2017-3849

Disclosure Date: March 21, 2017 •
CVE-2017-3849 CVSS v3 Base Score: 7.4
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Description

A vulnerability in the Autonomic Networking Infrastructure (ANI) registrar feature of Cisco IOS Software (possibly 15.2 through 15.6) and Cisco IOS XE Software (possibly 3.7 through 3.18, and 16) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation on certain crafted packets. An attacker could exploit this vulnerability by sending a crafted autonomic network channel discovery packet to a device that has all the following characteristics: (1) running a Cisco IOS Software or Cisco IOS XE Software release that supports the ANI feature; (2) configured as an autonomic registrar; (3) has a whitelist configured. An exploit could allow the attacker to cause the affected device to reload. Note: Autonomic networking should be configured with a whitelist. Do not remove the whitelist as a workaround. Cisco Bug IDs: CSCvc42717.

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CVSS V3 Severity and Metrics
Base Score:
7.4 High
Impact Score:
4
Exploitability Score:
2.8
Vector:
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector (AV):
Adjacent_network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Cisco IOS and IOS XE
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • cisco

Products

  • ios 15.2(3)e,
  • ios 15.2(3)e1,
  • ios 15.2(3)e2,
  • ios 15.2(3)e3,
  • ios 15.2(4)e,
  • ios 15.2(4)e1,
  • ios 15.2(4)e2,
  • ios 15.2(4)e3,
  • ios 15.2(5)e,
  • ios 15.2(5)e1,
  • ios 15.2(5a)e,
  • ios 15.2(5b)e,
  • ios 15.3(3)s,
  • ios 15.3(3)s1,
  • ios 15.3(3)s2,
  • ios 15.3(3)s3,
  • ios 15.3(3)s4,
  • ios 15.3(3)s5,
  • ios 15.3(3)s6,
  • ios 15.3(3)s8,
  • ios 15.3(3)s9,
  • ios 15.4(1)s,
  • ios 15.4(1)s1,
  • ios 15.4(1)s2,
  • ios 15.4(1)s3,
  • ios 15.4(1)s4,
  • ios 15.4(2)s1,
  • ios 15.4(2)s2,
  • ios 15.4(2)s3,
  • ios 15.4(2)s4,
  • ios 15.4(3)s,
  • ios 15.4(3)s1,
  • ios 15.4(3)s2,
  • ios 15.4(3)s3,
  • ios 15.4(3)s4,
  • ios 15.4(3)s5,
  • ios 15.4(3)s6,
  • ios 15.4(3)s6a,
  • ios 15.5(1)s,
  • ios 15.5(1)s1,
  • ios 15.5(1)s2,
  • ios 15.5(1)s3,
  • ios 15.5(1)s4,
  • ios 15.5(2)s,
  • ios 15.5(2)s1,
  • ios 15.5(2)s2,
  • ios 15.5(2)s3,
  • ios 15.5(2)s4,
  • ios 15.5(3)s,
  • ios 15.5(3)s0a,
  • ios 15.5(3)s1,
  • ios 15.5(3)s1a,
  • ios 15.5(3)s2,
  • ios 15.5(3)s3,
  • ios 15.5(3)s4,
  • ios 15.5(3)s5,
  • ios 15.5(3)sn,
  • ios 15.6(1)s,
  • ios 15.6(1)s1,
  • ios 15.6(1)s2,
  • ios 15.6(1)s3,
  • ios 15.6(1)t,
  • ios 15.6(1)t0a,
  • ios 15.6(1)t1,
  • ios 15.6(1)t2,
  • ios 15.6(2)s,
  • ios 15.6(2)s1,
  • ios 15.6(2)s2,
  • ios 15.6(2)sn,
  • ios 15.6(2)sp,
  • ios 15.6(2)sp1,
  • ios 15.6(2)t,
  • ios 15.6(2)t1,
  • ios 15.6(2)t2,
  • ios 15.6(3)m,
  • ios 15.6(3)m0a,
  • ios 15.6(3)m1,
  • ios xe 3.10.0s,
  • ios xe 3.10.1s,
  • ios xe 3.10.1xbs,
  • ios xe 3.10.2s,
  • ios xe 3.10.2ts,
  • ios xe 3.10.3s,
  • ios xe 3.10.4s,
  • ios xe 3.10.5s,
  • ios xe 3.10.6s,
  • ios xe 3.10.7s,
  • ios xe 3.10.8as,
  • ios xe 3.10.8s,
  • ios xe 3.11.0s,
  • ios xe 3.11.1s,
  • ios xe 3.11.2s,
  • ios xe 3.11.3s,
  • ios xe 3.11.4s,
  • ios xe 3.12.0as,
  • ios xe 3.12.1s,
  • ios xe 3.12.2s,
  • ios xe 3.12.3s,
  • ios xe 3.12.4s,
  • ios xe 3.13.0as,
  • ios xe 3.13.0s,
  • ios xe 3.13.1s,
  • ios xe 3.13.2as,
  • ios xe 3.13.2s,
  • ios xe 3.13.3s,
  • ios xe 3.13.4s,
  • ios xe 3.13.5as,
  • ios xe 3.13.5s,
  • ios xe 3.13.6as,
  • ios xe 3.13.6s,
  • ios xe 3.14.0s,
  • ios xe 3.14.1s,
  • ios xe 3.14.2s,
  • ios xe 3.14.3s,
  • ios xe 3.14.4s,
  • ios xe 3.15.0s,
  • ios xe 3.15.1cs,
  • ios xe 3.15.1s,
  • ios xe 3.15.2s,
  • ios xe 3.15.3s,
  • ios xe 3.15.4s,
  • ios xe 3.16.0cs,
  • ios xe 3.16.0s,
  • ios xe 3.16.1as,
  • ios xe 3.16.1s,
  • ios xe 3.16.2bs,
  • ios xe 3.16.2s,
  • ios xe 3.16.3as,
  • ios xe 3.16.3s,
  • ios xe 3.16.4as,
  • ios xe 3.16.4bs,
  • ios xe 3.16.4ds,
  • ios xe 3.16.4s,
  • ios xe 3.16.5s,
  • ios xe 3.17.0s,
  • ios xe 3.17.1as,
  • ios xe 3.17.1s,
  • ios xe 3.17.2s,
  • ios xe 3.17.3s,
  • ios xe 3.18.0as,
  • ios xe 3.18.0s,
  • ios xe 3.18.0sp,
  • ios xe 3.18.1asp,
  • ios xe 3.18.1bsp,
  • ios xe 3.18.1csp,
  • ios xe 3.18.1s,
  • ios xe 3.18.1sp,
  • ios xe 3.18.2s,
  • ios xe 3.18.3vs,
  • ios xe 3.7.0e,
  • ios xe 3.7.1e,
  • ios xe 3.7.2e,
  • ios xe 3.7.3e,
  • ios xe 3.7.4e,
  • ios xe 3.7.5e,
  • ios xe 3.8.0e,
  • ios xe 3.8.1e,
  • ios xe 3.8.2e,
  • ios xe 3.8.3e,
  • ios xe 3.9.0e,
  • ios xe 3.9.1e

Additional Info

Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Technical Analysis