CVE-2022-20676

Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability

MEDIUM 5.1

At a glance

Source
NVD
EPSS
EPSS 0.28 % · percentile 21 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Modified

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.

Weaknesses (CWE)

  • CWE-250 — Execution with Unnecessary Privileges
  • CWE-20 — Improper Input Validation

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.1CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:Ncisco
CVSS 3.1MEDIUM 5.1CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:NNVD · psirt@cisco.com (Secondary)
CVSS 3.1MEDIUM 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0HIGH 7.2AV:L/AC:L/Au:N/C:C/I:C/A:CNVD · nvd@nist.gov (Primary)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco · Cisco IOS XE Softwareaffected n/a

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD