CVE-2020-3204 — Improper Input Validation in Cisco IOS 12.2 SE1

CWE-20 — Improper Input Validation4 documents4 sources
Severity
6.7MEDIUMNVD
EPSS
0.1%
top 80.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Cisco IOS 12.2 SE1Cisco IOSCisco IOS XE
Timeline
PublishedJun 3
Latest updateMay 24

Description

A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker with privileged EXEC credentials to execute arbitrary code on the underlying operating system (OS) with root privileges. The vulnerability is due to insufficient input validation of data passed to the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could a…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 0.8 | Impact: 5.9

Affected Packages3 packages

▶NVDcisco/ios958 versions+957
▶NVDcisco/ios_xe325 versions+324

Patches

Patch: tools.cisco.com ↗Patch: tools.cisco.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-4273-vg8f-3qj2: A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local att↗2022-05-24
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CVEList
Cisco IOS and IOS XE Software Tcl Arbitrary Code Execution Vulnerability↗2020-06-03
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📋Vendor Advisories

1
Cisco
Cisco IOS and IOS XE Software Tcl Arbitrary Code Execution Vulnerability↗2020-06-03
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CVE-2020-3204 — Improper Input Validation in Cisco | cvebase