CVE-2020-3477 — Improper Input Validation in Cisco IOS

CWE-20 — Improper Input ValidationCWE-863 — Incorrect Authorization4 documents4 sources
Severity
5.5MEDIUMNVD
EPSS
0.1%
top 84.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco IOSCisco IOS
Timeline
PublishedSep 24
Latest updateMay 24

Description

A vulnerability in the CLI parser of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to access files from the flash: filesystem. The vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit this vulnerability by using a specific command at the command line. A successful exploit could allow the attacker to obtain read-only access to files that are located on the flash: filesyste…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages2 packages

▶NVDcisco/ios16.3.11
▶CVEListV5cisco/cisco_iosn/a

🔴Vulnerability Details

2
GHSA
GHSA-vv6f-f322-w3fx: A vulnerability in the CLI parser of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to access files from th↗2022-05-24
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CVEList
Cisco IOS and IOS XE Software Information Disclosure Vulnerability↗2020-09-24
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📋Vendor Advisories

1
Cisco
Cisco IOS and IOS XE Software Information Disclosure Vulnerability↗2020-09-24
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CVE-2020-3477 — Improper Input Validation in Cisco IOS | cvebase