CVE-2020-3516Improper Input Validation in Cisco IOS XE

Severity
4.3MEDIUMNVD
GHSA7.5
EPSS
0.6%
top 29.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedSep 24
Latest updateOct 27

Description

A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LExploitability: 2.8 | Impact: 1.4

Affected Packages3 packages

NVDcisco/ios_xe16.12.016.12.2+3
RubyGemsnokogiri/nokogiri< 1.11.4

🔴Vulnerability Details

3
GHSA
GHSA-c38h-42jg-3h9q: A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the2022-05-24
GHSA
Nokogiri updates packaged dependency on libxml2 from 2.9.10 to 2.9.122021-05-17
CVEList
Cisco IOS XE Software Web UI Improper Input Validation Vulnerability2020-09-24

📋Vendor Advisories

2
CISA ICS
Rockwell Automation Stratix Devices Containing Cisco IOS2022-10-27
Cisco
Cisco IOS XE Software Web UI Improper Input Validation Vulnerability2020-09-24