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7.8
CVSSv3

CVE-2021-1442

Published: 24/03/2021 Updated: 30/03/2021
CVSS v2 Base Score: 6.9 | Impact Score: 10 | Exploitability Score: 3.4
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 614
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
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Vulnerability Summary

A vulnerability in a diagnostic command for the Plug-and-Play (PnP) subsystem of Cisco IOS XE Software could allow an authenticated, local malicious user to elevate privileges to the level of an Administrator user (level 15) on an affected device. The vulnerability is due to insufficient protection of sensitive information. An attacker with low privileges could exploit this vulnerability by issuing the diagnostic CLI show pnp profile when a specific PnP listener is enabled on the device. A successful exploit could allow the malicious user to obtain a privileged authentication token. This token can be used to send crafted PnP messages and execute privileged commands on the targeted system.

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Vendor Advisories

Cisco: Cisco IOS XE Software Plug-and-Play Privilege Escalation Vulnerability
A vulnerability in a diagnostic command for the Plug-and-Play (PnP) subsystem of Cisco IOS XE Software could allow an authenticated, local attacker to elevate privileges to the level of an Administrator user (level 15) on an affected device The vulnerability is due to insufficient protection of sensitive information An attacker with low privilege ...

References

CWE-532https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-pnp-priv-esc-AmG3kuVLhttps://nvd.nist.govhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-pnp-priv-esc-AmG3kuVL
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-27322administrator privilegesCVE-2024-1579hardcodedCVE-2023-20198CVE-2024-33587CVE-2024-33449CVE-2024-4308HTML injection
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