8.6high

CVE-2018-0485

Cisco IOS and IOS XE Software SM-1T3/E3 Service Module Denial of Service Vulnerability

Published 8 y ago · modified 4 mo ago · JSON

CVSS
8.6
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
4.1%
percentile 91%
Public exploits
0
none known

Summary

A vulnerability in the SM-1T3/E3 firmware on Cisco Second Generation Integrated Services Routers (ISR G2) and the Cisco 4451-X Integrated Services Router (ISR4451-X) could allow an unauthenticated, remote attacker to cause the ISR G2 Router or the SM-1T3/E3 module on the ISR4451-X to reload, resulting in a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of user input. An attacker could exploit this vulnerability by first connecting to the SM-1T3/E3 module console and entering a string sequence. A successful exploit could allow the attacker to cause the ISR G2 Router or the SM-1T3/E3 module on the ISR4451-X to reload, resulting in a DoS condition on an affected device.

CISA SSVC assessment

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
23 mo ago

Exploit prediction (EPSS)

4.11% probability of exploitation in the next 30 days, higher than 91% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.08.6CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD2.07.8AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • Cisco Cisco IOS Software

Classification

Weakness
  • CWE-19 Data Processing Errors
  • CWE-20 Improper Input Validation
Technology feeds
Cisco IOS (RSS, critical only)

References

  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-sm1t3e3 · vendor-advisory, x_refsource_CISCO, x_transferred
  • securitytracker.com /id/1041737 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securitytracker.com /id/1041736 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/105433 · vdb-entry, x_refsource_BID, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.