Vulnerability · Published Mar 24, 2021 · Assigned by cisco

CVE-2021-1392Cisco IOS and IOS XE Software Common Industrial Protocol Privilege Escalation Vulnerability

High 7.8

In plain English

A high-severity security flaw in Cisco IOS from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.2%top 86.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the CLI command permissions of Cisco IOS and Cisco IOS XE Software could allow an authenticated, local attacker to retrieve the password for Common Industrial Protocol (CIP) and then remotely configure the device as an administrative user. This vulnerability exists because incorrect permissions are associated with the show cip security CLI command. An attacker could exploit this vulnerability by issuing the command to retrieve the password for CIP on an affected device. A successful exploit could allow the attacker to reconfigure the device.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco IOS	n/a

Weakness: CWE-522 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

20210324 Cisco IOS and IOS XE Software Common Industrial Protocol Privilege Escalation Vulnerability vendor-advisory, x_refsource_CISCO