Information disclosure in Cisco iOS Xe Software
CVE-2021-1442
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 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 attacker to obtain a privileged authentication token. This token can be used to send crafted PnP messages and execute privileged commands on the targeted system.
EPSS: 0.002 (15.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Ios Xe Software — versions n/a
- Cisco Ios_xe — versions 3.6.3e, 3.6.4e, 3.6.5ae
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1442?
- CVE-2021-1442 is a high-severity vulnerability in Cisco iOS Xe Software, classified under Insertion of Sensitive Information into Log File. CVSS score: 7.8/10. Published 2021-03-24.
- How severe is CVE-2021-1442?
- High severity. CVSS v3 base score is 7.8 out of 10.