CVE-2022-20676
Medium
Description
A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15.
SeverityMedium
CVSS5.1
Exploit probability—
Product
Cisco Ios Xe
PublishedApr 15, 2022
First seenApr 15, 2022
Weakness typeCWE-250CWE-250
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco ios_xe | 16.12.1z2, 17.2.1, 17.2.1a, 17.2.1r, 17.2.1v, 17.2.2, 17.2.3, 17.3.1, 17.3.1a, 17.3.1w, 17.3.1x, 17.3.1z, 17.3.2, 17.3.2a, 17.3.3, 17.3.3a, 17.3.4, 17.3.4a, 17.3.4b, 17.3.4c, 17.4.1, 17.4.1a, 17.4.1b, 17.4.1c, 17.4.2, 17.4.2a, 17.5.1, 17.5.1a, 17.5.1c | — |
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