vulnwire
8.6high

CVE-2018-0470

Cisco IOS XE Software HTTP 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
4.4%
percentile 91%
Public exploits
0
none known

A vulnerability in the web framework of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a buffer overflow condition on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the affected software improperly parsing malformed HTTP packets that are destined to a device. An attacker could exploit this vulnerability by sending a malformed HTTP packet to an affected device for processing. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected device, resulting in a DoS condition.

CISA SSVC assessment

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
23 mo ago

Exploit prediction (EPSS)

4.40% 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 XE Software

Classification

Weakness
  • CWE-399 Resource Management Errors
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Technology feeds
Cisco IOS (RSS, critical only)

References

  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-webdos · vendor-advisory, x_refsource_CISCO, x_transferred
  • securitytracker.com /id/1041737 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/105397 · vdb-entry, x_refsource_BID, x_transferred
  • ics-cert.us-cert.gov /advisories/ICSA-19-094-03 · x_refsource_MISC, x_transferred

Sources

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